| 单词 | radio wave |
| 例句 | "The rover currently parses the signal into bytes, then identifies the specific sequence the Hab sends. That way, natural radio waves won't throw off the homing. If the bytes aren't right, the rover ignores them." The Martian 2011-01-01T00:00:00Z And when, in 1956, an early radio telescope was turned toward Venus, it was discovered to be emitting radio waves as if it were at an extremely high temperature. Cosmos 1980-01-01T00:00:00Z His voice crackled over the radio waves to an estimated forty million listeners, including President Roosevelt. Seabiscuit: An American Legend 2001-01-01T00:00:00Z All across the Congo on invisible radio waves flew the code words: The Rabbit has escaped. The Poisonwood Bible 1998-01-01T00:00:00Z Indeed, the police make use of the Doppler effect to measure the speed of cars by measuring the wavelength of pulses of radio waves reflected off them. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z How he wishes he had eyes to see the ultraviolet, eyes to see the infrared, eyes to see radio waves crowding the darkening sky, flashing through the walls of the house. All the Light We Cannot See 2014-05-06T00:00:00Z It will not get hot enough to emit X rays, but it could account for the very compact source of radio waves and infrared rays that is observed at the galactic center. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Some nearby examples, tens or hundreds of millions of light-years away, are powerful sources of X-rays, infrared radiation and radio waves, have extremely luminous cores and fluctuate in brightness on time scales of weeks. Cosmos 1980-01-01T00:00:00Z The reception had little static, as if the radio waves understood the importance of the speech. Half of a Yellow Sun 2006-09-12T00:00:00Z Some places on the surface will absorb them or, if they are very rough, will scatter them sideways and so will appear dark to radio waves. Cosmos 1980-01-01T00:00:00Z Alternatively, it could mean that the sources were more numerous in the past, at the time that the radio waves left on their journey to us, than they are now. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Virtually any planetary atmosphere, no matter what its composition, should be partially transparent to radio waves. Cosmos 1980-01-01T00:00:00Z The tracking stations captured the signals with their sixty-four-foot receiving dishes, then relayed this data plus voice communications through a jumble of submarine cables, landlines, and radio waves to the computer center at Goddard. Hidden Figures 2016-09-06T00:00:00Z Further encouragement for the existence of black holes came in 1967 with the discovery by a research student at Cambridge, Jocelyn Bell-Burnell, of objects in the sky that were emitting regular pulses of radio waves. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z We have examined our Sun, the nearest star, in various wavelengths from radio waves to ordinary visible light to X-rays, all of which arise only from its outermost layers. Cosmos 1980-01-01T00:00:00Z Then, less than a century ago, the radio waves leaving the Earth would become stronger, louder, less like noise and more like signals. Cosmos 1980-01-01T00:00:00Z Beyond the infrared is the vast spectral region of the radio waves. Cosmos 1980-01-01T00:00:00Z The behavior of light or radio waves is similar. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Police can tell how fast a car is going by testing how light—in the form of radio waves—reflected off the speeding vehicle gets shifted. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z He soon tired of chasing radio waves with his wire and ordered a short-wave radio with two enormous batteries. The House of the Spirits: A Novel 1982-01-01T00:00:00Z From gamma rays to radio waves, all are equally respectable bands of light. Cosmos 1980-01-01T00:00:00Z In radar astronomy, radio waves are transmitted by a telescope on Earth, strike, say, that hemisphere of Venus that happens to be facing the Earth, and bounce back. Cosmos 1980-01-01T00:00:00Z But there are many other reasons for natural objects to give off radio waves. Cosmos 1980-01-01T00:00:00Z It does not give off visible light, although it seems to give off radio waves. Cosmos 1980-01-01T00:00:00Z It receives radio waves from the depths of space, focusing them onto the feed arm antenna high above the dish, which is in turn electronically connected to the control room, where the signal is analyzed. Cosmos 1980-01-01T00:00:00Z At many wavelengths the clouds and atmosphere of Venus are entirely transparent to radio waves. Cosmos 1980-01-01T00:00:00Z My radio went dead and I thought it was broken, but it was only that the high ridges cut off the radio waves. Travels with Charley in Search of America 1962-01-01T00:00:00Z Most shine mainly in visible and infrared light; others are also brilliant sources of X-rays or radio waves. Cosmos 1980-01-01T00:00:00Z Each observer could use radar to say where and when an event took place by sending out a pulse of light or radio waves. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z The Earth is bathed in radio waves that were produced when the visible universe was around a thousand times smaller than it is today. How the dawn of time has a promising future in research 2013-04-13T23:05:06Z At first the music is “carried by this combination of solo cello and the radio waves again,” he said. The Carpetbagger: Below the Line: Scoring ‘Gravity’ 2014-02-05T21:24:28Z The device, which will be distributed to all visitors, uses radio waves and vibrates when social distances are violated. To safely reopen, facilities throw rules out the window and embrace creativity 2020-07-02T04:00:00Z By day, scholars, D.J.s, musicians and promoters offered papers, discussions and five-minute “lightning talks,” covering topics like “Multiperspectivity in Sound” and how ocean waves resemble radio waves. Mouse on Mars at M.I.T.: A Symposium Becomes a Dance Party 2018-03-12T04:00:00Z I read somewhere that radio waves just keep traveling outward, flying into the universe with eternal vibrations. Everyone is so special 2014-04-05T22:00:00Z Science had yet to accept that germs spread disease, but demonstrations in the power of electricity and radio waves hinted at the power of an unseen world. Separate beds are liberating 2012-08-14T00:00:00Z It was an accomplishment that paved the way for cellphone conversations, in which voices are transmitted and received by radio waves. We know about Edison, Bell and the Wright Brothers, but Fessenden? 2015-03-06T05:00:00Z Plenty of others heard her stories of convoluted conspiracies — she said she wore her helmet to protect herself from government experiments and radio waves — and dismissed her as crazy. Pennsylvania Ave. activist Concepcion Picciotto’s vigil lives on after her death — with some changes 2016-03-01T05:00:00Z The Teleharmonium and the Electrophone foreshadowed the broadcast of music by radio waves, but they also explode the notion that the telephone itself was ever a device that facilitated intimacy. The rest is power: classical music in the age of the dictatorship 2013-05-10T15:01:02Z They found a universe alive with the hum of inchoate radio waves and, later, the flares of intense X-rays. Black and light 2015-06-18T04:00:00Z Like radio waves, TV signals, and atomic energy, whatever powers and steers the flying saucer remains a strange and unseen mystery. Weird suburbia: How atomic bombs and UFOs created modern America 2014-03-16T18:00:00Z In the 1960s, the artist Robert Barry created an installation consisting entirely of radio waves in an otherwise empty gallery. Tuning Out Digital Buzz, for an Intimate Communion With Art 2015-03-16T04:00:00Z Lenin struts across a perfect gray circle, overlaid by a red square, radiating radio waves: a new man walking into a new world. The Artists Who Redesigned a War-Shattered Europe 2020-12-17T05:00:00Z She tells him that she is learning about the magic of radio waves. Adapting ‘All the Light We Cannot See’ for TV, and the Blind 2023-10-18T04:00:00Z The link between the aliens and radio waves points towards a possible Skitter early detection system. Falling Skies: episode five 2011-08-02T21:05:01Z One reason, peculiarly enough, may be that its overall approach seems guided by contemporary research and its new abilities to view brain activity using magnetic signals, radio waves and radioactive traces. Glimpsing the Brain?s Powers (and Limits) 2010-11-19T18:00:00Z Another option, somnoplasty, uses radio waves to shrink the soft tissue that vibrates while you snore. Why you snore, when to be concerned and how to stop 2021-12-02T05:00:00Z Sound art uses anything from radio waves to classical violins to create installations that are often presented in outdoor public spaces. Special Report: An Artist Whose Work 'Sounds Like Stars' 2010-10-13T13:00:00Z So how does a serious thing — radio waves from a dead star in the service of a suicide’s art — resonate faithfully in deeply unserious times? How Joy Division’s ‘Unknown Pleasures’ image went from underground album cover to a piece of cultural ubiquity 2019-06-14T04:00:00Z Every girl that grew up in the hood, with her blasting through the windows, cars and radio waves can feel me ... 'A true legend' ? stars pay tribute to Teena Marie 2010-12-28T10:27:54Z Detailed images are created when the magnetic field is interrupted with radio waves. Have you ever wondered about X-rays? He took to the radio waves to keep the United States from entering a war against Germany. Charles Lindbergh's unapologetic bigotry: How he became the face of the America First Committee 2020-03-29T04:00:00Z The experts link af Klint’s explorations with contemporary scientific discoveries, like radio waves and the X-ray, that pointed toward the unseen dimensions of reality, and also with the mystical movements of her time. ‘Beyond the Visible: Hilma af Klint’ Review: What Did She See, and When? 2020-04-16T04:00:00Z Even if you weren't on social media since he governed by tweet, he sneaked in to your thoughts by way of words tattooed on dead trees, radio waves, a friend's seething complaint. Post-Trump, what are you going to do with all of that freed-up space in your brain? 2021-01-23T05:00:00Z As Hooykaas has said: "We've always been drawn to space and time: the tides, the cycle of the seasons and natural elements like radio waves and magnetic fields." This week's new exhibitions 2010-12-18T00:08:35Z Here’s proof: He landed his first No. 1 album in August; he gripped his first Grammy back in February; and his songs currently saturate the charts, the radio waves and playlists of varying repute. Perspective | I was wrong about Young Thug 2019-10-23T04:00:00Z ALMA's resolution, the ability to see small details, is determined by the maximum separation between the antennas and the frequency of the observed radio waves. An old star with ring-like structure: ALMA demonstrates highest resolution yet 2023-11-15T05:00:00Z Synchrotron radiation is usually best seen in radio waves and infrared, so it dominates the smoother inner cloud in JWST’s view. See JWST’s Spectacular New View of the Crab Nebula 2023-11-10T05:00:00Z To test the idea, the researchers set up a container with movable barrels on the campus of Ruhr University Bochum, Germany, which they monitored using radio wave technology. Monitoring nuclear weapons stockpiles with radio waves 2023-10-30T04:00:00Z Researchers last week reported detecting mysterious, ultrafast blasts of radio waves from distant space that last only a few millionths of a second. News at a glance: Big neutrino detectors, pesky Excel formatting, and a crackdown on lead 2023-10-25T04:00:00Z An international team has spotted a remote blast of cosmic radio waves lasting less than a millisecond. Astronomers detect most distant fast radio burst to date 2023-10-19T04:00:00Z An experimental communication system is also along for the ride, using lasers instead of radio waves in an attempt to expand the flow of data from deep space to Earth. NASA spacecraft launched to mysterious and rare metal asteroid in first mission of its kind 2023-10-13T04:00:00Z Fast radio bursts are hugely powerful, bright bursts of energy which are visible on radio waves. 'Starquakes' could explain mystery signals 2023-10-11T04:00:00Z The IT security experts developed a mechanism that uses radio waves to remotely monitor whether any changes are being made in a specific room. Monitoring nuclear weapons stockpiles with radio waves 2023-10-30T04:00:00Z The light emitted by axions -- detectable in the form of radio waves -- would only be a small fraction of the total light that these bright cosmic lighthouses send our way. Pulsars may make dark matter glow 2023-10-06T04:00:00Z It will achieve this by using higher-frequency radio waves than its predecessors. New 6G Networks Are in the Works. Can They Destroy Dead Zones for Good? 2023-10-03T04:00:00Z Elsewhere, the bright yellow “o” in “radio” is being painfully squeezed by a C-clamp; the illusionistic word is set against a heavenly blue sky, where invisible radio waves travel. Review: In his rapturous MoMA retrospective, L.A. artist Ed Ruscha gives New York School art a witty blow 2023-09-20T04:00:00Z The fMRI machine uses strong magnetic fields and radio waves to create pictures showing which parts of the brain are active. Scientists Train AI to Read Human Thoughts 2023-05-11T04:00:00Z Antennas broadcast radio waves in different directions depending on design choices. Math’s ‘Hairy Ball Theorem’ Has Surprising Implications 2023-08-18T04:00:00Z This allowed the researchers to quantitatively understand the subsequent production of radio waves and model how this process would provide an additional radio signal on top of the intrinsic emission generated from the pulsar itself. Pulsars may make dark matter glow 2023-10-06T04:00:00Z But this gas doesn't beam strong radio waves making it very difficult to directly measure how much Hydrogen a disk has. How to Directly Weigh A Protoplanetary Disk? 2023-01-30T05:00:00Z It is a powerful telescope that can capture high quality images of very weak radio waves that hold clues to star and planet formation and also the building blocks of life. High-Speed Baby Star Tantrums 2023-02-20T05:00:00Z For the first time ever, astronomers detected radio waves coming from a Type Ia supernova! Tune in to the Supernova Radio! 2023-06-08T04:00:00Z Sufficiently far away from the source, radio waves exhibit an electric field perpendicular to the direction they’re traveling, meaning the field is tangent to the sphere of waves. Math’s ‘Hairy Ball Theorem’ Has Surprising Implications 2023-08-18T04:00:00Z Using observations from 27 nearby pulsars, the researchers compared the observed radio waves to the models, to see if any measured excess could provide evidence for the existence of axions. Pulsars may make dark matter glow 2023-10-06T04:00:00Z They detected a faint polarised radio wave coming from the galactic cores. Cosmic Monsters’ Growth Secret 2023-08-03T04:00:00Z Because radio waves can pass through dust unscathed, these studies were able to pierce the shadows cast by the Great Rift and other starlight-blocking interstellar clouds. How Seeing the Milky Way Helped Us Discover the Whole Universe 2023-08-04T04:00:00Z Astronomers are now looking to detect more radio waves coming from Type Ia supernovae, to help them understand these explosions further. Tune in to the Supernova Radio! 2023-06-08T04:00:00Z Interestingly, sound transmits a different kind of wave without the perpendicular property of radio waves, so loudspeakers that emanate equal-intensity sound in every direction are possible. Math’s ‘Hairy Ball Theorem’ Has Surprising Implications 2023-08-18T04:00:00Z Almost every modern weapon - from artillery installations to high precision missiles - uses radio waves, microwaves, infrared or other frequencies to receive data. Ukraine's invisible battle to jam Russian weapons 2023-08-03T04:00:00Z A radio astronomy devotee, he fills his spare time working on radio wave projects in a room littered with instruments and parts. Can You Decode an Alien Message? 2023-08-03T04:00:00Z AM stands for amplitude modulation, used to transmit information in a radio wave. AM radio served the country for 100 years. Will electric vehicles silence it? 2023-07-31T04:00:00Z The research team hopes to clarify the relationship between the emitted strong radio waves and this stripped material. Tune in to the Supernova Radio! 2023-06-08T04:00:00Z The idea of searching for life via technosignatures — such as radio waves, industrial pollution, light pollution, or anything that would suggest advanced technology is being used — is becoming more accepted. How scientists will know they've found 'alien life' 2023-07-20T04:00:00Z Radio astronomer Jocelyn Bell Burnell noticed a strange, regularly pulsed radio wave signal from space while working as a graduate student at the University of Cambridge. Ultracold Gases Can Probe Neutron Star Guts 2023-07-18T04:00:00Z Aviation groups have warned for years that 5G signals could interfere with aircraft equipment, especially devices using radio waves to measure distance above the ground and which are critical when planes land in low visibility. As if air travel isn’t hard enough, 5G wireless signals could disrupt flights starting this weekend 2023-06-30T04:00:00Z "We've seen it in many wavelengths of light - like radio waves and gamma rays - but since the dawn of time it was always in electromagnetic radiation. In all wavelengths of light or photons." Milky Way: Icy observatory reveals 'ghost particles' 2023-06-29T04:00:00Z Researchers think that when a white dwarf explodes, the shock waves from the supernova explosion passing through this cloud will give the surrounding materials a lot of energy that they release strong radio waves. Tune in to the Supernova Radio! 2023-06-08T04:00:00Z Sophisticated telescopes have surveyed the Milky Way across the spectrum of light, from radio waves to ultra-high-energy gamma rays. Neutrinos Build a Ghostly Map of the Milky Way 2023-06-29T04:00:00Z Thanks to their rapid spins, they can be detected as rhythmic pulses of radio waves. Scientists 'hear' gravitational wave hum 2023-06-29T04:00:00Z These objects act like cosmic clocks, emitting beams of radio waves that can be periodically measured on Earth. The Cosmos Is Thrumming With Gravitational Waves, Astronomers Find 2023-06-28T04:00:00Z The scientists pointed telescopes at dead stars called pulsars, which send out flashes of radio waves as they spin around in space like lighthouses. Scientists have finally ‘heard’ the chorus of gravitational waves that ripple through the universe 2023-06-28T04:00:00Z Astronomers have yet to see radio waves coming from such an explosion, until now! Tune in to the Supernova Radio! 2023-06-08T04:00:00Z Still, the scientists note that the population of terrestrial cell phone towers is on the rise, and we get brighter in radio waves every day. Is E.T. Eavesdropping On Our Phone Calls? 2023-05-23T04:00:00Z HawkEye 360, a Virginia-based firm, has used private equity funds to launch its own satellites that use radio waves emitted by communications equipment and other electronic devices to detect the presence of enemy troop concentrations. Start-Ups Bring Silicon Valley Ethos to a Lumbering Military-Industrial Complex 2023-05-21T04:00:00Z Advances in the understanding of radio waves led to the development of radar, providing advance warning of enemy attacks. World History: from 1400 2022-12-14T00:00:00Z Electrons whipping around the giant ring, 18 Jupiter diameters across, emitted radio waves detected by an array of 39 radio telescopes spanning the globe. News at a glance: An ancient Mars river, blood screening rules, and sex-research funds blocked 2023-05-17T04:00:00Z As an accelerator physicist, he understood how electrons surf radio waves to gain energy, magnetic fields focus those particles, resonances can obliterate a beam, and synchrotron radiation itself kicks the electrons around. A farewell to the x-ray–generating particle accelerator that was my father’s baby 2023-05-03T04:00:00Z Russia has spent years building up high-power jamming systems capable of emitting radio waves to spoof or throw off GPS navigation. In Ukraine’s forests, soldiers race to get for next push, hope to shift momentum in war with Russia 2023-05-04T04:00:00Z The phone converts your voice into an electric signal, which modulates a radio wave. Mobile phone inventor made first call 50 years ago 2023-04-02T04:00:00Z But cosmic radio waves at frequencies below about 100 megahertz are extremely challenging to measure from Earth, because of the planet’s noise. Are Telescopes on the Moon Doomed? 2023-03-09T05:00:00Z They also found no evidence, including forensic information or geolocation data, that would suggest an adversary had used a form of directed energy such as radio waves or ultrasonic beams. ‘Havana syndrome’ not caused by energy weapon or foreign adversary, intelligence review finds 2023-03-01T05:00:00Z An MRI scanner employs a magnetic field to twirl atomic nuclei in living tissue—specifically the protons at the heart of hydrogen atoms—so that they emit radio waves. MRI for all: Cheap portable scanners aim to revolutionize medical imaging 2023-02-22T05:00:00Z Radar systems send out radio waves, which then bounce off nearby objects. New Space Radar Will Hunt Planet-Threatening Asteroids 2023-02-21T05:00:00Z The radio wave goes to a mast; the mast sends your voice to the person you are calling, and by reversing the process, that person can then hear you speak. Mobile phone inventor made first call 50 years ago 2023-04-02T04:00:00Z That work involves looking for signals across a broad range of radio waves — including the gigahertz frequencies at which satellites communicate. Are Telescopes on the Moon Doomed? 2023-03-09T05:00:00Z It was part of a test to see if radio waves could penetrate an asteroid and send back data on its interior structure, said Mark Haynes, the JPL radar systems engineer who led the project. An asteroid will just miss us in 2029. Scientists are making the most of a rare opportunity 2023-02-14T05:00:00Z At that point, a pulse of radio waves of the right frequency and duration can tip them by 90°. MRI for all: Cheap portable scanners aim to revolutionize medical imaging 2023-02-22T05:00:00Z Plus, the new instrument transmits via the Ku band, a higher frequency of radio waves than used by other planetary radars. New Space Radar Will Hunt Planet-Threatening Asteroids 2023-02-21T05:00:00Z It’s possible SDSO-1 could be the remnant of a Milky Way star that exploded as a supernova, but then it should also be glowing in ultraviolet light and radio waves. A Recently Discovered Gas Cloud Near Andromeda Stumps Astronomers 2023-01-12T05:00:00Z Even if life on other planets evolves the ability to send information through radio waves, they might kill themselves off via nuclear weapons or climate change, or go extinct due to galactic hazards. Are we too primitive for aliens to bother with us? Some scientists think so 2022-12-21T05:00:00Z The satellite sends out radio waves, and KaRIn records how much of that energy returns to the satellite, and how long it takes to arrive. Why NASA's new mission will study Earth's water from space 2022-12-14T05:00:00Z To manipulate the protons, a high-field scanner must use higher frequency, higher energy radio waves, so it can pulse only so fast before it begins to heat the patient. MRI for all: Cheap portable scanners aim to revolutionize medical imaging 2023-02-22T05:00:00Z Radio telescopes are particularly sensitive to the radio waves emitted by vehicles and communications devices. Construction of World’s Largest Radio Observatory Is Finally Under Way 2022-12-06T05:00:00Z My group, for instance, produced a three-dimensional cloak that can drastically reduce the amount of radio waves that scatter off of a cylinder, making it difficult to detect via radar. Engineered Metamaterials Can Trick Light and Sound into Mind-Bending Behavior 2022-11-18T05:00:00Z It can include everything from artificial light to pollution to radio waves that spill out into the cosmos. Are we too primitive for aliens to bother with us? Some scientists think so 2022-12-21T05:00:00Z AST SpaceMobile hopes the satellite will pave the way for the first space-based cellular broadband network, improving coverage by transmitting radio waves directly between satellites and mobile phones rather than relaying signals through cell towers. Giant satellite outshines stars, sparking fresh concerns for astronomers 2022-11-13T05:00:00Z Short for magnetic resonance imaging machine, MRIs are essentially magnets that look like giant tubes and uses radio waves to take extremely detailed images of your inner organs. A helium shortage might mean you can't get the medical scans you need. Here's why 2022-11-03T04:00:00Z Astronomers and space agencies use beams of radio waves to communicate with satellites and space craft in the solar system. Signatures of alien technology could be how humanity first finds extraterrestrial life 2022-11-02T04:00:00Z The solar energy collected by the satellites would be converted into high frequency radio waves and beamed to a rectifying antenna on Earth, which would convert the radio waves into electricity. How solar farms in space might beam electricity to Earth 2022-10-31T04:00:00Z Each time, BX2AN, as he is known on the radio waves, jots down a series of numbers and letters: call signs, names, dates, locations. If China declares war, these ham radio enthusiasts could be crucial 2022-10-27T04:00:00Z It also boasted a radar transmitter that made it the world’s foremost instrument for studying Solar System bodies by bouncing radio waves off their surfaces. Hopes for rebuilding giant Arecibo telescope appear dead 2022-10-18T04:00:00Z Many experts who have studied brain scans of victims are convinced that at least some of the incidents were caused by directed energy or radio waves. Report Criticizes C.I.A.’s Initial Handling of Havana Syndrome Cases 2022-10-14T04:00:00Z Some researchers also use radio waves for radar to study asteroids. Signatures of alien technology could be how humanity first finds extraterrestrial life 2022-11-02T04:00:00Z Late last year, the team successfully demonstrated new components for a so-called sandwich tile, which is used to convert solar energy into radio waves. How solar farms in space might beam electricity to Earth 2022-10-31T04:00:00Z But electromagnetic waves come in all sizes, from the shortest wavelengths, and the highest frequencies — powerful gamma rays and X-rays — through ultraviolet, visible, infrared, microwaves and, finally, low-frequency radio waves. Maarten Schmidt, Caltech astronomer who changed our understanding of the cosmos, dies 2022-09-23T04:00:00Z He never wavered in his belief that if humans waited long enough and searched hard enough, they could bridge the vast gaps between the stars with radio waves. Frank Drake, Who Led Search for Life on Other Planets, Dies at 92 2022-09-05T04:00:00Z Why don’t buildings block radio waves as completely as they do visible light? College Physics for AP Courses 2015-08-12T00:00:00Z What is the wavelength in meters of these radio waves? Chemistry 2019-02-14T00:00:00Z However, radio waves of 21-cm wavelength pass right through the dust, enabling astronomers to detect hydrogen atoms throughout the Galaxy. Astronomy 2016-10-13T00:00:00Z Working with rats, he discovered that when tissues were placed in a magnetic field and hit with a pulse of radio waves, cancerous ones emitted distinctly different radio signals than healthy ones. Raymond Damadian, Creator of the First M.R.I. Scanner, Dies at 86 2022-08-17T04:00:00Z The scientists used a noninvasive technique called magnetic resonance spectroscopy, which can detect glutamate through a combination of radio waves and powerful magnets. Mentally exhausted? Study blames buildup of key chemical in brain 2022-08-11T04:00:00Z What effect does going to a larger magnetic field have on the most efficient antenna to broadcast those radio waves? College Physics for AP Courses 2015-08-12T00:00:00Z What is the wavelength of these radio waves in meters? Chemistry 2019-02-14T00:00:00Z Brighter regions are more intense in radio waves. Astronomy 2016-10-13T00:00:00Z Lidars are detection systems, similar to radars, that use pulsed laser light rather than radio waves. Baidu CEO says EV arm's autonomous driving tech will be ahead of Tesla 2022-08-08T04:00:00Z "That's the beams of radio waves as they spin around and flash in the sky like a cosmic lighthouse," he added. Giant Lovell radio telescope at Jodrell Bank to become space light show 2022-07-23T04:00:00Z Different names are used for electromagnetic waves of different wavelengths: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. College Physics for AP Courses 2015-08-12T00:00:00Z What is the wavelength of these radio waves in meters? Chemistry 2019-02-14T00:00:00Z Although few astronomers would have predicted it, the sky turned out to be full of strong sources of radio waves. Astronomy 2016-10-13T00:00:00Z Black holes generate radio waves by expelling plasma—pumping it out in polar jets or belching out material that crashes into surrounding gas. Radio bursts from ‘zombie’ black holes excite astronomers 2022-07-22T04:00:00Z Each dish focuses the incoming parallel beams of radio waves to a precise focal point, where they can be synchronized by computer. Calculus, Volume 3 2016-03-30T00:00:00Z The direction of the nuclear magnetic field is quantized as is energy in the radio waves. College Physics for AP Courses 2015-08-12T00:00:00Z All forms of electromagnetic radiation share these properties, although various forms including X-rays, visible light, microwaves, and radio waves interact differently with matter and have very different practical applications. Chemistry 2019-02-14T00:00:00Z What if that atmosphere is a source of radio waves or somehow affected their measurements? Astronomy 2016-10-13T00:00:00Z The key moment comes when the accretion disk is still dense enough to fuel jets, but not so dense as to reabsorb the generated radio waves. Radio bursts from ‘zombie’ black holes excite astronomers 2022-07-22T04:00:00Z Lidars are detection systems, similar to radars, which use pulsed laser light rather than radio waves. Baidu unveils autonomous vehicle without steering wheel 2022-07-21T04:00:00Z The specific frequency of the radio waves that are absorbed and reemitted depends sensitively on the type of nucleus, the chemical environment, and the external magnetic field strength. College Physics for AP Courses 2015-08-12T00:00:00Z Most interstellar radio waves last only a few milliseconds, but these signals have been lasting up to three seconds. MIT scientists pick up radio signals ‘like a heartbeat’ from billions of light-years away 2022-07-14T04:00:00Z Our planet has some leakage of radio waves into space, from FM radio, television, military radars, and communication between Earth and our orbiting spacecraft. Astronomy 2016-10-13T00:00:00Z Common spectra include the different colors of visible light, X-rays, ultraviolet waves, microwaves, and radio waves. An Introduction to Geology 2017-01-01T00:00:00Z These waves vary in length from long radio waves and microwaves to short gamma waves emitted from decaying atomic nuclei. Anatomy and Physiology 2013-06-19T00:00:00Z The reception of reemitted radio waves as a function of frequency thus gives position information. College Physics for AP Courses 2015-08-12T00:00:00Z At this very minute, with almost absolute certainty, radio waves sent forth by other intelligent civilizations are falling on the earth. A Chinese Telescope Did Not Find an Alien Signal. The Search Continues. 2022-06-18T04:00:00Z Scientists have determined that the best way to communicate with any intelligent civilizations out there is by using electromagnetic waves, and radio waves seem best suited to the task. Astronomy 2016-10-13T00:00:00Z If the procedure works, which is far from certain, the heat from the radio waves could prevent the nerves from sending pain signals to Nadal’s brain. Rafael Nadal, Looking Unbeatable, Wins 14th French Open Title 2022-06-05T04:00:00Z Indeed, Romanovskaya says that interstellar travel would likely create technosignatures — such as radio waves, industrial pollution, light pollution, or anything that would suggest advanced technology is being used — when aliens engage in such travel. Scientist says interstellar travel might be possible without spaceships 2022-06-05T04:00:00Z The intensity of the reemitted radio waves is proportional to the concentration of the nuclear type being flipped, as well as information on the chemical environment in that area of the body. College Physics for AP Courses 2015-08-12T00:00:00Z The devices, about the size of two credit cards, can be placed yards away from streams, and use high-frequency radio waves to measure the depth of the water. Record Methane Spike Boosts Heat Trapped by Greenhouse Gases 2022-06-01T04:00:00Z What are the advantages to using radio waves for communication between civilizations that live around different stars? Astronomy 2016-10-13T00:00:00Z Regarded as the "father of radio", Marconi was a joint-winner of the Nobel prize for his work with "wireless telegraphy", which included discoveries that allowed messages to be sent via radio waves. Cardiff Bay Marconi sculpture review over fascism link 2022-06-01T04:00:00Z Origins of snake oil “Snake oil” products claiming to protect humans from radio waves became common as fears of radiofrequency radiation grew throughout the 20th century. How fears of electromagnetic radiation spawned a snake-oil industry 2022-05-17T04:00:00Z There are many uses for radio waves, and so the category is divided into many subcategories, including microwaves and those electromagnetic waves used for AM and FM radio, cellular telephones, and TV. College Physics for AP Courses 2015-08-12T00:00:00Z In 1967, the physicist James Bardeen proposed that a black hole would be visible to observers as a ghostly dark circle amid a haze of radio waves. The Milky Way’s Black Hole Comes to Light 2022-05-12T04:00:00Z Suppose we are one of 1000 civilizations, randomly distributed through the disk, interested in communicating via radio waves. Astronomy 2016-10-13T00:00:00Z As pulsars spin, they release a stream of radio waves from their poles — a ‘pulse’ that can be detected using radio telescopes. A Galaxy Is Unmasked as a Pulsar — the Brightest outside the Milky Way 2022-05-04T04:00:00Z Hydrogen atoms naturally emit radio waves with a characteristic 21-centimeter wavelength, and because hydrogen gas clouds tend to gravitationally cluster around galaxies, patterns in this radio emission reflect matter’s underlying cosmic distribution. Canadian Telescope Delivers Deepest-Ever Radio View of Cosmic Web 2022-05-04T04:00:00Z The wavelength of 100-MHz radio waves is 3 m, yet using the sensitivity of the resonant frequency to the magnetic field strength, details smaller than a millimeter can be imaged. College Physics for AP Courses 2015-08-12T00:00:00Z But ionized electrons and protons in interstellar space scatter the radio waves into a blur that obscures details of the source. The Milky Way’s Black Hole Comes to Light 2022-05-12T04:00:00Z This was not because the astronauts were thinking slowly, but rather because it took the radio waves almost 3 seconds to make the round trip. Astronomy 2016-10-13T00:00:00Z The survey looks at a large amount of sky for highly variable radio wave sources, and collects circular polarization, among other data. A Galaxy Is Unmasked as a Pulsar — the Brightest outside the Milky Way 2022-05-04T04:00:00Z Hydrogen intensity mapping, the strategy pursued by CHIME, could prove a cheaper and faster way to map the cosmos. 21-cm radio waves from distant gas clouds get redshifted just like visible light. Canadian Telescope Delivers Deepest-Ever Radio View of Cosmic Web 2022-05-04T04:00:00Z Any electromagnetic wave produced by currents in wires is classified as a radio wave, the lowest frequency electromagnetic waves. College Physics for AP Courses 2015-08-12T00:00:00Z To amplify the faint signal, physicists place in the field an ultracold cylindrical metal cavity designed to resonate with radio waves just as an organ pipe rings with sound. To crack the mystery of dark matter, physicists turn to supersensitive quantum sensors 2022-04-27T04:00:00Z The “micro-” prefix refers to the fact that microwaves are small in comparison to radio waves, the next on the spectrum. Astronomy 2016-10-13T00:00:00Z Pulsars emit gamma rays, in addition to their flood of radio waves. Astronomers find a new way to detect gravitational waves 2022-04-06T04:00:00Z Game Day Signals uses encrypted low-band radio waves with a range of 500-550 feet, Malay said, and the battery life is five to six hours before recharging is required. College baseball goes high-tech to send pitch calls to mound 2022-04-03T04:00:00Z Should the straight wire antenna of a radio be vertical or horizontal to best receive radio waves broadcast by a vertical transmitter antenna? College Physics for AP Courses 2015-08-12T00:00:00Z Like any wave, the radio wave will have an amplitude that reveals how strong it is and a phase that marks its exact synchronization relative to whatever ultraprecise clock you might choose. To crack the mystery of dark matter, physicists turn to supersensitive quantum sensors 2022-04-27T04:00:00Z All electromagnetic waves longer than microwaves are called radio waves, but this is so broad a category that we generally divide it into several subsections. Astronomy 2016-10-13T00:00:00Z This wisp of particles and radiation can bend the path of radio waves and slow some frequencies more than others, smearing out the signal. Astronomers find a new way to detect gravitational waves 2022-04-06T04:00:00Z Other issues could be caused by hardware settings, crowded Wi-Fi channels, physical or radio wave interference and software running on the computer. Can old passwords for websites be recovered and do printers retain information | Q&A with Patrick Marshall 2022-04-02T04:00:00Z In an MRI scan, a higher magnetic field requires higher frequency radio waves to resonate with the nuclear type whose density and location is being imaged. College Physics for AP Courses 2015-08-12T00:00:00Z Axions could convert to radio waves within the inductor coil to create a resonating signal in the circuit at a certain frequency. To crack the mystery of dark matter, physicists turn to supersensitive quantum sensors 2022-04-27T04:00:00Z Among the most familiar of these are radar waves, which are used in radar guns by traffic officers to determine vehicle speeds, and AM radio waves, which were the first to be developed for broadcasting. Astronomy 2016-10-13T00:00:00Z It, too, was coded in binary, but it eschewed bitmaps for a message design that explored the concepts of time and radio waves by referring back to the radio wave carrying the message. Researchers Made a New Message for Extraterrestrials 2022-03-30T04:00:00Z But they are also important because the Earth's atmosphere naturally emits radio waves, which can be picked up by satellite sensors and translated into weather data like temperature and precipitation. How 5G could send weather forecasting back to the 1970s 2022-03-14T04:00:00Z Observations of other EM wavelengths, such as radio waves and X rays, have similarly confirmed the existence of dark matter. College Physics for AP Courses 2015-08-12T00:00:00Z Ordinarily, experimenters would bleed the radio waves out through a hole in the cavity and measure them with a low-noise amplifier. To crack the mystery of dark matter, physicists turn to supersensitive quantum sensors 2022-04-27T04:00:00Z With such a wide range of wavelengths, not all radio waves interact with Earth’s atmosphere in the same way. Astronomy 2016-10-13T00:00:00Z But radio astronomers have been looking for an indirect effect, using the spectrum of radio waves. New Result Casts Doubt on ‘Cosmic Dawn’ Claim 2022-03-03T05:00:00Z Its hardware generates electronically steerable beams of radio waves carrying information between the devices and its software stitches the information together. CesiumAstro secures $60 mln in funding from Airbus Ventures and others 2022-03-02T05:00:00Z Even radio waves are most easily understood using an analogy with water waves. College Physics for AP Courses 2015-08-12T00:00:00Z However, if dark matter consists of certain nearly massless particles, then in the right setting it might generate faint, unquenchable radio waves. To crack the mystery of dark matter, physicists turn to supersensitive quantum sensors 2022-04-27T04:00:00Z In addition to visible and infrared radiation, radio waves from astronomical objects can also be detected from the surface of Earth. Astronomy 2016-10-13T00:00:00Z A: Sounds like there’s some radio wave interference going on. How to extend a phone’s battery life, find troublesome shortcuts and stop speaker interference 2022-02-19T05:00:00Z Individuals accidentally exposed to electromagnetic energy signals - which include radio waves, microwaves and X-rays - have reported "sensations" similar to the symptoms reported by Havana Syndrome victims, the report noted. U.S. diplomats, spies may have been hit by electromagnetic energy -report 2022-02-02T05:00:00Z Since salt water is a good conductor, radio waves are strongly absorbed by it, and very long wavelengths are needed to reach a submarine under the surface. College Physics for AP Courses 2015-08-12T00:00:00Z Neutron stars generally spin fast on their axes, and the energetic processes which take place within release powerful radio waves from their poles. In Earth's galactic backyard, a never-before-seen space anomaly blinks on and off 2022-02-01T05:00:00Z Subsequent investigation showed that the source of this radiation was part of the Milky Way Galaxy; Jansky had discovered the first source of cosmic radio waves. Astronomy 2016-10-13T00:00:00Z The object may be continuously beaming strong radio waves from its north and south poles. Scientists amazed by blinking star's 'totally unexpected' behavior 2022-01-27T05:00:00Z The radio waves are close to those used by aircraft radar altimeters and the FAA has said there is a risk that they could cause interference. FAA clears 62% of U.S. fleet to operate at airports with 5G 2022-01-19T05:00:00Z The intensity of the radio waves used in MRI presents little or no hazard to human health. College Physics for AP Courses 2015-08-12T00:00:00Z "But nobody expected to directly detect one like this because we didn't expect them to be so bright. Somehow it's converting magnetic energy to radio waves much more effectively than anything we've seen before." In Earth's galactic backyard, a never-before-seen space anomaly blinks on and off 2022-02-01T05:00:00Z The radio waves we receive from space do not, of course, have music or other program information encoded in them. Astronomy 2016-10-13T00:00:00Z It was found in a broader research effort mapping celestial sources of radio waves. Scientists amazed by blinking star's 'totally unexpected' behavior 2022-01-27T05:00:00Z Japan’s All Nippon Airways said that the FAA “has indicated that radio waves from the 5G wireless service may interfere with aircraft altimeters.” Major airlines cancel, change flights to US over 5G dispute 2022-01-19T05:00:00Z Since they have high frequencies, their wavelengths are short compared with those of other radio waves—hence the name “microwave.” College Physics for AP Courses 2015-08-12T00:00:00Z Dr Hurley-Walker is now monitoring the object to see if it turns back on, as more detections are needed to better understand the source of these strange radio waves. In Earth's galactic backyard, a never-before-seen space anomaly blinks on and off 2022-02-01T05:00:00Z Nevertheless, there is information in the radio waves we receive—information that can tell us about the chemistry and physical conditions of the sources of the waves. Astronomy 2016-10-13T00:00:00Z Ltd. said in a statement that the FAA “has indicated that radio waves from the 5G wireless service may interfere with aircraft altimeters.” Airlines worldwide rush to change flights over US 5G dispute 2022-01-18T05:00:00Z In particular, they’re worried about radar altimeters — a device that bounces radio waves off the ground to give extremely precise altitude readings. Why AT&T and Verizon are feuding with the US government over a last-minute delay to 5G 2022-01-04T05:00:00Z Radio telescopes such as the Arecibo Radio Telescope in Puerto Rico and Parkes Observatory in Australia were designed to detect radio waves. College Physics for AP Courses 2015-08-12T00:00:00Z The team has been using the telescope to map radio waves in the universe. In Earth's galactic backyard, a never-before-seen space anomaly blinks on and off 2022-02-01T05:00:00Z The radio waves collected by the dish are reflected to a focus, where they can then be directed to a receiver and analyzed. Astronomy 2016-10-13T00:00:00Z Technology has not been immune to conspiracy theories either, with attacks on 5G transmitters from those who believe they omit dangerous radio waves. Year in tech: The stories making headlines in 2021 2021-12-30T05:00:00Z Mobile networks use non-ionising radio waves that do not damage DNA. Anti-5G necklaces found to be radioactive 2021-12-17T05:00:00Z Figure 27.28 shows another mirror used to observe radio waves from outer space. College Physics for AP Courses 2015-08-12T00:00:00Z Radar, which uses radio waves and has been around for decades, was cheaper than lidar, a less common technology. Inside Tesla as Elon Musk Pushed an Unflinching Vision for Self-Driving Cars 2021-12-06T05:00:00Z This accounts for the afterglow of X-rays, visible light, and radio waves—the glow comes at longer and longer wavelengths as the blast continues to lose energy. Astronomy 2016-10-13T00:00:00Z These city-size remnants of dead stars spin frenetically, sometimes hundreds of times per second, emitting beams of radio waves, x-rays, and other radiation that sweep past Earth like a lighthouse beacon. NASA telescope to study how extreme cosmic objects sculpt x-ray light 2021-12-02T05:00:00Z This indicated that the radio waves were encountering enormous amounts of electrons as they traveled through the intergalactic medium. Mysterious Fast Radio Bursts Are Finally Coming into Focus 2021-11-22T05:00:00Z This assumes no significant electromagnetic radiation from the inductor and capacitor, such as radio waves. College Physics for AP Courses 2015-08-12T00:00:00Z As a result, tens of thousands of the devices are in use without any protection against adjacent radio waves, the FAA said in the bulletin. FAA issues safety alert on 5G interference to aircraft 2021-11-02T04:00:00Z If you had been in their shoes, what tests would you have performed to see whether such a pulsating source of radio waves was natural or the result of an alien intelligence? Astronomy 2016-10-13T00:00:00Z It's better to put your router up high because radio waves usually spread the signal downward. Sick of slow Wi-Fi? Move your router 2021-11-01T04:00:00Z Scientists have known since the 1960s that there are two seemingly separate radio structures — which are defined in astronomy as any object that emits strong radio waves — that can be definitively detected by Earth's technology. Is the earth hanging by cosmic ropes inside a magnetic tunnel? Some scientists think so 2021-10-27T04:00:00Z While their precise causes remain a mystery, astrophysicists have mostly ruled out the possibility that these mysterious radio waves are coming from an alien civilization, as Salon has previously reported. A mysterious and powerful radio signal from space is repeating itself 2021-10-18T04:00:00Z As a world moves through the magnetic field of its star, it can produce bursts of radio waves. ‘Auroral’ Exoplanets Could Help Boost Searches for Alien Life 2021-10-11T04:00:00Z Scientists had preprogrammed Viking to send a radio wave toward Earth that would go extremely close to the outer regions of the Sun. Astronomy 2016-10-13T00:00:00Z The public-facing reason for the technological restrictions is the Green Bank Observatory, whose telescopes detect radio waves from space. Book review: The mirage of a town without cellphones 2021-10-09T04:00:00Z As part of a search for mysterious radio sources known as quasars, the telescope recorded the signals of distant radio waves, which were registered on chart paper as crests and troughs. Antony Hewish, astronomer who won Nobel Prize for the discovery of pulsars, dies at 97 2021-09-17T04:00:00Z Known as fast radio bursts, or FRBs for short, these very brief yet incredibly powerful bursts of radio wave energy appear to be coming from all corners of the universe. A mysterious and powerful radio signal from space is repeating itself 2021-10-18T04:00:00Z If a planet orbits very close to the rotating star, it can further accelerate those particles, causing a bright flash in low-frequency radio waves. ‘Auroral’ Exoplanets Could Help Boost Searches for Alien Life 2021-10-11T04:00:00Z However, we have access to a wide spectrum of electromagnetic radiation, ranging from the longest- wavelength radio waves to the shortest-wavelength gamma rays. Astronomy 2016-10-13T00:00:00Z Helping check their influence is EMITT, the observatory's electromagnetic interference tracking truck, whose instruments pinpoint illegal radio waves. Book review: The mirage of a town without cellphones 2021-10-09T04:00:00Z Like celestial lighthouses, the stars send streams of radio waves or other radiation into the universe, rotating rapidly so that their beams appear to pulse like clockwork. Antony Hewish, astronomer who won Nobel Prize for the discovery of pulsars, dies at 97 2021-09-17T04:00:00Z Ditto Gabriel’s undefined electrical powers that make lights flicker and allow him to communicate via radio waves. Let's talk about that crazy twist in 'Malignant' — is it real or pure fiction? 2021-09-10T04:00:00Z As with the proposed LCRT, the Arecibo Observatory took advantage of the natural concavity of its resident crater to focus distant radio waves. Scientists say a telescope on the Moon could advance physics — and they're hoping to build one 2021-09-05T04:00:00Z When we consider all these requirements, radio waves turn out to be the best answer. Astronomy 2016-10-13T00:00:00Z Nevertheless, starting in the mid-2000s, people began moving to Green Bank because they believed radio waves made them sick, and today their number has grown to over 100, Kurczy estimates. Book review: The mirage of a town without cellphones 2021-10-09T04:00:00Z “A lot of people are interested in beam-forming type approaches, where you actually generate a propagating radio wave and steer it around,” Smith says. This Room Could Wirelessly Charge All Your Devices 2021-09-02T04:00:00Z The images are of the radio waves emitted by the galaxies. Astronomers see galaxies in ultra-high definition 2021-08-17T04:00:00Z “The system output is powerful radio wave bursts, which offer a greater engagement range than bullets or nets,” Ms. Anderson said. Air Force ready to use THOR’s hammer to take out drones 2021-08-13T04:00:00Z Today, astronomers use these words to describe changes in the wavelengths of radio waves or X-rays as comfortably as they use them to describe changes in visible light. Astronomy 2016-10-13T00:00:00Z Federal agencies are competing with one another over radio waves used to help predict changes in the climate as the sky is increasingly cluttered with noise from billions of smartphones. 5G Wireless Could Interfere with Weather Forecasts 2021-08-03T04:00:00Z Some believe the unexplained injuries, which include brain damage, are the result of attacks with microwave or radio wave weapons. US probes rash of health incidents among diplomats in Vienna 2021-07-16T04:00:00Z Scientists have long known the Crab Nebula as a very energetic astrophysical object beaming off radiation ranging from radio waves to gamma rays. Highest-Energy Particles Yet Arrive from Ancient Crab Nebula 2021-07-08T04:00:00Z The competition in the electromagnetic spectrum, which includes everything from radio waves to visible light, is more important than ever before. New Air Force unit fights to dominate electromagnetic spectrum 2021-06-28T04:00:00Z An antenna is such a conductor: it intercepts radio waves, which create a feeble current in it. Astronomy 2016-10-13T00:00:00Z Human-made radio waves that started pinging from Earth roughly 100 years ago have washed over about 75 different star systems, the paper says. Alien planets have had "front-row" view of Earth for ages, astronomers say 2021-06-23T04:00:00Z But this duration is misleadingly long: as signals travel across millions of light years of space, intergalactic matter tends to smear radio waves across the spectrum, a phenomenon known as dispersion. Mysterious Fast Radio Bursts Come in Two Distinct Flavors 2021-06-14T04:00:00Z Instead of directing slow, sweeping radio waves at the atoms, Dr. Ernst and Anderson subjected them to short, intense pulses. Richard Ernst, Nobel laureate whose research made MRI possible, dies at 87 2021-06-09T04:00:00Z He’s since soured on radar, which uses radio waves to do the same thing. Tesla phases out radar sensors, shifts to camera-based autopilot 2021-05-26T04:00:00Z Because radio waves have such long wavelengths, they present tremendous challenges for astronomers who need good resolution. Astronomy 2016-10-13T00:00:00Z Another body with access is Ofcom, which among other roles regulates the radio waves used for broadcast and wireless signals. Dangerous eBay listings can be removed by regulators 2021-05-09T04:00:00Z The term metamaterials refers to a broad class of manufactured materials composed of structures that are finer than the wavelength of visible light, radio waves and other types of electromagnetic radiation. These materials could make science fiction a reality 2021-05-02T04:00:00Z By completing simple puzzles — aligning radio waves, connecting shapes without crossing wires — one can unlock interaction opportunities inside the land, such as causing a droid to chirp or a ship to steam. Disneyland's reopening: Why it matters and what to pay attention to when you return 2021-04-30T04:00:00Z A more novel detection strategy will hunt for radio waves from charged particle showers in air rather than ice. Searching for the Universe’s Most Energetic Particles, Astronomers Turn on the Radio 2021-04-27T04:00:00Z An excited atom can later lose its excess energy either by colliding with another particle or by giving off a radio wave with a wavelength of 21 centimeters. Astronomy 2016-10-13T00:00:00Z Essentially, the U1 chip uses radio waves to more precisely locate the position of another device equipped with the same chip. With AirTags, Apple launches a new product — and invites antitrust scrutiny 2021-04-20T04:00:00Z Second, astronomical objects emit powerful radio waves, making it simpler to record these signals at individual antennas for subsequent correlation. Quantum Astronomy Could Create Telescopes Hundreds of Kilometers Wide 2021-04-19T04:00:00Z “We took to the radio waves, and we started talking about the fact that the hospital and clinics that we support are open,” said Lascher. Pandemic raises risk for pregnant women and their babies 2021-04-01T04:00:00Z Refraction describes the bending of electromagnetic waves, including light and radio waves. Floating land, wall of water appear over Chesapeake Bay amid rare mirage 2021-03-15T04:00:00Z A low-energy radio wave has a low frequency as a wave, while a high-energy X-ray at your dentist’s office is a high-frequency wave. Astronomy 2016-10-13T00:00:00Z When I think of ham radio, I think of sending a message across radio waves, around the world, to eventually connect with some random person on the other side of the Earth. Separated by distance — and a pandemic — Puget Sound’s amateur radio enthusiasts are connecting with even greater frequency 2021-03-03T05:00:00Z Moreover, Dr. Poggiali said, because methane is transparent to radio waves, the submarine could perhaps transmit data directly to Earth while still submerged. Seven Hundred Leagues Beneath Titan’s Methane Seas 2021-02-21T05:00:00Z Did my parents exult in Limbaugh’s bombastic diatribes because he embodied their beliefs, validating them by shouting his message into radio waves with historically massive listenership? Perspective | Rush Limbaugh taught me to be a feminist 2021-02-18T05:00:00Z The same set of circumstances is also beneficial for radio wave propagation, since signals are amplified at greater distances near the surface. Floating land, wall of water appear over Chesapeake Bay amid rare mirage 2021-03-15T04:00:00Z In the above example, which photon would have the longer wavelength as a wave: the radio wave or the X-ray? Astronomy 2016-10-13T00:00:00Z A router converts your incoming data stream into radio waves and beams them throughout the home, like a sprinkler distributing water from a hose, Dandekar said. How to boost your Wi-Fi performance when everyone’s at home 2021-02-01T05:00:00Z The galaxy core also emits radio waves, but they didn’t help the search, Dr. Burke-Spolaor said. Missing: One Black Hole With 10 Billion Solar Masses 2021-01-19T05:00:00Z A 1997 upgrade added the igloo-shaped “Gregorian dome,” which housed additional reflectors to focus the radio waves to a point where detectors and transmitters covering many frequencies could be mounted. How the famed Arecibo telescope fell—and how it might rise again 2021-01-14T05:00:00Z In a new paper with my student Amir Siraj, we show that the likelihood of another civilization transmitting such radio waves is exceedingly low based on the Copernican principle. Did We Receive a Message from a Planet Orbiting the Nearest Star? 2021-01-12T05:00:00Z If you answered the radio wave, you are correct. Astronomy 2016-10-13T00:00:00Z Its mammoth, 1,000-foot-wide dish made it exquisitely sensitive, able to capture radio waves that wash over Earth with just a millionth of the energy in a falling snowflake. Why the loss of an iconic radio telescope is painfully personal 2021-01-11T05:00:00Z Nobody believes it was ET phoning, but radio astronomers admit they don’t have an explanation yet for a beam of radio waves that apparently came from the direction of the star Proxima Centauri. Was That a Dropped Call From ET? 2020-12-31T05:00:00Z Its powerful radar could bounce radio waves off other planets and asteroids, revealing the contours of their surfaces. How the famed Arecibo telescope fell—and how it might rise again 2021-01-14T05:00:00Z In April, we also got further notice of music of the spheres with the capturing of radio waves by a Canadian radio telescope with the appropriate acronym of CHIME. How Terry Riley and Kronos Quartet turned the sun's radiance into the most moving music 2020-12-30T05:00:00Z Between visible light and radio waves are the wavelengths of infrared or heat radiation. Astronomy 2016-10-13T00:00:00Z High above the dish, an enormous 900-ton platform held the equipment needed to focus those radio waves, including a dome filled with a complex reflector system—a structure large enough to engulf a four-story house. Why the loss of an iconic radio telescope is painfully personal 2021-01-11T05:00:00Z It resembles the kind of radio waves that humans would send into space and appears to come from the direction of the red dwarf star Proxima Centauri. Scientists discovered a radio signal from the nearest star and want to know if it's from aliens 2020-12-23T05:00:00Z Unlike radio waves the cosmos produces naturally, these whispers from extraterrestrials are expected to look a lot like the transmissions humans use to communicate. Alien hunters detect mysterious radio signal from nearby star 2020-12-18T05:00:00Z The team is testing other materials to weave into the futuristic camouflage, including polymers that absorb body heat and radio waves, making soldiers harder to detect with thermal imagers and radars. Europe hopes new R&D fund will boost meager defense capabilities and create opportunities for science 2020-12-08T05:00:00Z Explain what the ionosphere is and how it interacts with some radio waves. Astronomy 2016-10-13T00:00:00Z Putting one around your router would, by very similar physics, prevent those same radio waves that carry your internet from reaching your devices. People are putting their routers in jail to protect themselves from harmless Wi-Fi 2020-12-03T05:00:00Z A narrow beam of radio waves was detected over a period of 30 hours in April and May 2019 by the Parkes telescope in Australia, according to The Guardian. Scientists discovered a radio signal from the nearest star and want to know if it's from aliens 2020-12-23T05:00:00Z I don’t need to do any research on the physics of radio waves. Opinion | When the World Seems Like One Big Conspiracy 2020-11-20T05:00:00Z Our evidence for the cocoon is indirect: when the star exploded, we saw a flash of optical light and radio waves that seemed to indicate debris hitting a mass surrounding the star. Strange Supernovae Upend Expectations 2020-11-17T05:00:00Z In the twentieth century, our exploration of space made it possible to detect electromagnetic radiation at all wavelengths, from gamma rays to radio waves. Astronomy 2016-10-13T00:00:00Z And it points to a solid connection between magnetars and these dynamic space radio waves. Astronomers trace mysterious space radio waves to a source within our galaxy 2020-11-04T05:00:00Z The finding not only demonstrated that the mysterious source of radio waves was a supermassive black hole, but that if one existed in our garden-variety galaxy, then they were sure to be commonplace, she said. UCLA professor among 3 scientists to share Nobel physics prize for black hole finds 2020-10-06T04:00:00Z A stacked series of jagged lines displayed incoming radio waves from pulsar CP1919, as detected at Arecibo Observatory in Puerto Rico. The Pulsar Chart That Became a Pop Icon Turns 50: Joy Division’s Unknown Pleasures 2020-09-18T04:00:00Z Different species of molecules will absorb radio waves coming through the clouds at different characteristic wavelengths. Life on Venus? Astronomers See a Signal in Its Clouds 2020-09-14T04:00:00Z Much more fundamental is the rotation of the mantle and core; these can be determined by periodic variations in radio waves coming from Jupiter, which are controlled by its magnetic field. Astronomy 2016-10-13T00:00:00Z These recurrent bursts helped scientists locate the galaxies where these radio waves originate. Astronomers trace mysterious space radio waves to a source within our galaxy 2020-11-04T05:00:00Z After SETI’s historically preferred contact technology, radio waves, became commonly available in the early part of the 20th century, some discoveries were even initially thought to be alien transmissions. Want to Talk to Aliens? Try Changing the Technological Channel Beyond Radio 2020-09-02T04:00:00Z Wireless networks use cellular towers to exchange voice communications and data with mobile devices via radio waves, allowing devices to communicate with one another and with the Internet. A remote corner of Idaho has become the best hope for the U.S. challenge to Huawei 2020-06-29T04:00:00Z Flashes of radio waves lasting a thousandth of a second arrive on Earth every second from all over the sky. An Audacious Explanation for Fast Radio Bursts 2020-06-24T04:00:00Z They can also have long jets that glow with radio waves, light, and sometimes even X-rays, and that extend far beyond the limits of the parent galaxy. Astronomy 2016-10-13T00:00:00Z For one thing, astronomers continued to monitor the magnetar as it burped up more X-rays and gamma rays, but those follow-up events didn’t match up with any significant radio wave bursts. Astronomers trace mysterious space radio waves to a source within our galaxy 2020-11-04T05:00:00Z Traditional communications satellites used radio waves to send signals. China Reports Progress in Ultra-Secure Satellite Transmission 2020-06-15T04:00:00Z A new radio wave burst in space is capturing scientists' attention because of what it may tell us about its source. A new, recurring radio wave burst from space could reveal more about its mysterious origins 2020-06-15T04:00:00Z By bouncing radio waves off underground objects, the experts gained fresh insight into what the city looked like. Radar reveals entire ancient Roman city in stunning detail 2020-06-09T04:00:00Z The turmoil suggested it might be pulsing with radio waves, too. Galactic flash points to long-sought source for enigmatic radio bursts 2020-06-08T04:00:00Z The radio waves, the article explains, are shaped by passing through an “isotropic device,” which increases linear precision in multiple directions simultaneously without losing any signal capacity. Navy ships improve attack with new multi-beam satellite antenna 2020-05-18T04:00:00Z Within the emissions, they found something surprising: a powerful blast of radio waves that lasted mere milliseconds. ‘Magnetic Star’ Radio Waves Could Solve the Mystery of Fast Radio Bursts 2020-05-05T04:00:00Z It should go without saying that there is no possible connection between the 5G radio waves and the spread of a virus. 5G, coronavirus and contagious superstition 2020-04-26T04:00:00Z Their radio waves are non-ionizing; that is, they cannot burn or cause cellular damage. The great 5G coronavirus conspiracy 2020-04-18T04:00:00Z Real College Podcast is still recording, and the station’s local show held a recent Instagram Live studio session with Minneapolis favorites Early Eyes with music still hitting the radio waves. U of Minnesota radio station hits the airwaves _ from home 2020-04-18T04:00:00Z But its occult ability to jumpstart joy means it still deserves its place on the radio waves. In a time of crisis, the magic of Pharrell's Happy is needed more than ever 2020-04-15T04:00:00Z Teams traced the radio waves back to a highly magnetic neutron star—the remnant of a star that was maybe 40 or 50 times as massive as the sun—called SGR 1935+2154. ‘Magnetic Star’ Radio Waves Could Solve the Mystery of Fast Radio Bursts 2020-05-05T04:00:00Z It was done over a teletype, which was a device used to send and receive typed messages over wires or radio waves. NFL Hall of Famer Jack Youngblood on 'virtual' draft due to COVID: 'Maybe it will make them work harder' 2020-04-14T04:00:00Z Yes, once again, radio waves are a form of radiation. The great 5G coronavirus conspiracy 2020-04-18T04:00:00Z Mr. Putin has disseminated false and alarming health narratives not only about pathogens and vaccines but also about radio waves, bioengineered genes, industrial chemicals and other intangibles of modern life. Putin’s Long War Against American Science 2020-04-13T04:00:00Z “Viruses cannot travel on radio waves/mobile networks,” the Health Care Agency wrote. Orange County reports 19th coronavirus death as case count nears 1,300 2020-04-13T04:00:00Z Bursts of radio waves challenge their orientation, generating signals that are rendered into images. How a Bouncy Ball Changed the Way I See the World 2020-04-03T04:00:00Z Likewise, radio waves and viruses aren’t transmitted in the same way. Why the 5G coronavirus conspiracy theories don’t make sense 2020-04-09T04:00:00Z The 5G network is simply made of radio waves that are received and emitted by mobile phones and the related cellular phone towers. The great 5G coronavirus conspiracy 2020-04-18T04:00:00Z One falsely suggests 5G suppresses the immune system, the other falsely claims the virus is somehow using the network's radio waves to communicate and pick victims, accelerating its spread. YouTube tightens Covid-19 rules after Icke interview 2020-04-07T04:00:00Z Some residents throughout Orange County and the state have expressed concerns with the technology, which activists allege could endanger public health because of the use of higher-frequency radio waves. Orange County reports 19th coronavirus death as case count nears 1,300 2020-04-13T04:00:00Z Many of those sharing the post are pushing a conspiracy theory falsely claiming that 5G - which is used in mobile phone networks and relies on signals carried by radio waves - is somehow responsible for coronavirus. No, 5G does not spread coronavirus 2020-04-04T04:00:00Z That orbit will keep SunRISE well above the ionosphere, which blocks radio waves of the relevant frequencies from reaching Earth. NASA’s Next Solar Mission Will Use Six Spacecraft to Make One Giant Telescope 2020-04-01T04:00:00Z The radio waves coming from your microwave oven are vastly more powerful than radio waves you will be exposed to coming from cellular systems, including 5G. The great 5G coronavirus conspiracy 2020-04-18T04:00:00Z After all, we have been sending radio waves into space since the invention of radio. We Should Message Extraterrestrial Civilizations, Not Just Listen for Them 2020-03-29T04:00:00Z In contrast, radio waves easily pass through dust and allow us to explore the entire disk and map its structure. A New Map of the Milky Way 2020-03-17T04:00:00Z But 5G radio waves are tiny and they are nowhere near strong enough to affect the immune system. No, 5G does not spread coronavirus 2020-04-04T04:00:00Z The company’s remote sensing technology, lidar, which uses pulsed laser light as a radar uses radio waves, is seen by experts as a crucial element for self-driving vehicles. SoftBank-backed Innoviz partners with China's Shaanxi for self-driving trucks 2020-02-12T05:00:00Z But one thing 5G cannot do nor can any other radio wave is this: It cannot transmit a virus or bacteria. The great 5G coronavirus conspiracy 2020-04-18T04:00:00Z With satellite TV, radio waves are beamed from satellites and received by dishes on people’s roofs: a one-way transmission. Nearly 3 million subscribers ditched DirecTV last year. Will AT&T do the same? 2020-01-31T05:00:00Z After some calibrations, the result is a digital image of what we would see if our eyes were sensitive to radio waves and separated by almost the entire width of the planet. A New Map of the Milky Way 2020-03-17T04:00:00Z New research shows that healthy gray whales are nearly five times more likely to strand when there is a high prevalence of sunspots, and therefore high levels of radio waves emitted from solar storms. Solar storms might be causing gray whales to get lost 2020-01-13T05:00:00Z But MDA is also exploring using directed energy: lasers, neutral particle beams, and microwaves or radio waves. ‘National pride is at stake.’ Russia, China, United States race to build hypersonic weapons 2020-01-08T05:00:00Z Linksys is able to detect motion by measuring disruptions in radio wave intensity between at least two Velop nodes caused by a person or animal walking through a room, for example. Linksys routers will soon monitor your breathing as well as movement 2020-01-08T05:00:00Z For the unfamiliar, FRBs are, true to their name, short bursts of radio waves that are so powerful that scientists are able to detect them on Earth, despite their extragalactic origins. Astronomers race to study mysterious fast radio burst detected in a nearby galaxy 2020-01-07T05:00:00Z As an FRB travels through the ionized intergalactic medium, its radio waves interact with free electrons and are slowed. Not all fast radio bursts are created equal 2020-01-05T05:00:00Z “There’s always been people that do ‘home-brew’ — trying to find newer, ingenuous ways of generating radio waves.” Virginia man re-creates purported 113-year-old Christmas Eve radio broadcast each holiday: ‘It’s a ritual’ 2019-12-31T05:00:00Z This creates a sharp thermal contrast in the atmosphere which TV and radio waves see as a physical boundary. Freeview blames weather for TV problems 2019-12-30T05:00:00Z Now, researchers are ready to try artificial remediation, by beaming radio waves into the belts. U.S. tests ways to sweep space clean of radiation after nuclear attack 2019-12-26T05:00:00Z Reality TV may have enshrined his celebrity, but Trump’s tone, his concerns and his willingness to shock people are most at home on the radio waves during rush hour. Perspective | Trump sounds just like a right-wing talk-radio host 2019-12-12T05:00:00Z He sells counter-drone technology, including jamming “guns” that block drones with radio waves. Detectors, jammers and cyber attackers: the rise of anti-drone tech 2019-12-12T05:00:00Z This is just one way that researchers and companies are trying to scavenge energy from our ambient environment in its many forms, including radio waves, vibrations and sound. Energy harvesters pick up power 2019-12-10T05:00:00Z Directed energy weapons emit focused energy in the form of lasers, microwaves, electromagnetic radiation, radio waves, sound or particle beams. UAE in weapons making push as allies restrict sales 2019-11-22T05:00:00Z Ionized by sunlight, the barium would create a ring of moving plasma that emits radio waves: essentially a space version of a magnetron, the gadget used in microwave ovens. U.S. tests ways to sweep space clean of radiation after nuclear attack 2019-12-26T05:00:00Z Also, it can spin around hundreds of times per second, and spew forth radio waves, x-rays and lethal doses of radiation. Who Really Discovered the First Exoplanet? 2019-11-12T05:00:00Z Though a number of other exotic interstellar communication schemes were floated during the Armenia conference, most of the attendees focused on radio waves as a mundane but eminently more practical communication medium. Cosmic cats and nuclear blasts: the strange history of interstellar messages 2019-11-06T05:00:00Z The first director was James Clerk Maxwell, whose electromagnetic theory of the mid-1860s led to the discovery of radio waves in 1887 — which soon enabled ‘wireless’ telecommunication and rendered the telegraph obsolete. Science must move with the times 2019-11-04T05:00:00Z Beyond this visible portion is an invisible symphony of light, from low-energy radio waves to massively energetic cosmic rays that emerge from space. Don't Fall Prey to Scaremongering about 5G 2019-10-28T04:00:00Z They designed telescopes to detect frequencies of light that lie beyond human perception, such as those of x-rays and radio waves. How Mere Humans Manage to Comprehend the Vastness of the Universe 2019-10-11T04:00:00Z By accurately timing the arrival of radio waves at multiple sensors in the network, his team estimated the location of each strike to within a few miles. The Most Powerful Lightning Strikes in Unexpected Places 2019-09-17T04:00:00Z Most days, they were on the radio waves as the town woke up: Flash and Mr. Cool, Gerlach’s morning duo for traffic, weather and, well, whatever else they wanted to talk about. He was 'goofy and innocent and often annoying,' but he inspired a tough town to celebrate eccentricities 2019-09-24T04:00:00Z Bubbles of radio waves spotted at the centre of the Milky Way.Credit: Giant ‘bubbles’ spotted around Milky Way’s black hole 2019-09-10T04:00:00Z It was activated by radio waves beamed at the US embassy by the Soviets. The Cold War spy technology which we all use 2019-08-20T04:00:00Z "Those guidelines recommend that exposure to radio waves should be below a certain power level - and the power levels we measured are a thousand times lower than that level." Pupils kept at home over 5G mobile health fears 2019-08-19T04:00:00Z The telescope, which is near Penticton in British Columbia, was initially built to study radio waves from the early Universe. Astronomers Closer to Cracking Mystery of Fast Radio Bursts 2019-08-15T04:00:00Z It could also keep signals more secure by transmitting sensitive information close to the body and away from potential eavesdroppers on the radio waves, the scientists said. 'Smart' clothing can boost wearable tech: Singapore researchers 2019-08-15T04:00:00Z In 2007, astronomers detected a flash of radio waves that was much shorter in duration than the blink of an eye1. X marks the spot for fast radio bursts 2019-08-13T04:00:00Z But the idea of a device that is powered by incoming radio waves, and which sends back information in response, is much more than that. The Cold War spy technology which we all use 2019-08-20T04:00:00Z Many, such as EDGES, collect data with a single antenna and aim to measure some property of radio waves averaged over the entire available sky. The quest to unlock the secrets of the baby Universe 2019-08-13T04:00:00Z Each was designed to bounce radio waves off the ionosphere, allowing federally produced programming to be transmitted all over the globe. 'Voice of America' exhibition is a fascinating look at early shortwave radio 2019-07-30T04:00:00Z He grabbed a stone from the crate, more cone-shaped than round, and began talking about the Z dimension and radio waves. ‘Mountain man’ found peace, fame, through skipping stones 2019-07-20T04:00:00Z Planets that have a magnetic field emit low-frequency radio waves when electrons spiral around the field lines. Could humanity’s return to the moon spark a new age of lunar telescopes? 2019-07-18T04:00:00Z As with previous cellular technologies, 5G networks rely on signals carried by radio waves - part of the electromagnetic spectrum - transmitted between an antenna or mast and your phone. Does 5G pose health risks? 2019-07-14T04:00:00Z These might include laying a new metal screen on the desert ground beneath the antennas, to act as a mirror for radio waves. The quest to unlock the secrets of the baby Universe 2019-08-13T04:00:00Z The site pioneered the then new science of radio astronomy, which used radio waves instead of visible light to understand the universe. Jodrell Bank gets World Heritage status 2019-07-07T04:00:00Z In analog chips, simpler components that convert things such as sound and radio waves into digital signals, the U.S. owns 65% of the market. How U.S. chipmakers pressed Trump to ease China's Huawei ban 2019-07-02T04:00:00Z At those frequencies, the ionosphere, a layer containing charged particles high in the atmosphere, can refract, disperse, or completely block radio waves. Could humanity’s return to the moon spark a new age of lunar telescopes? 2019-07-18T04:00:00Z The radio wave band - used for mobile phone networks - is non-ionising, "which means it lacks sufficient energy to break apart DNA and cause cellular damage," says David Robert Grimes, physicist and cancer researcher. Does 5G pose health risks? 2019-07-14T04:00:00Z These strange blasts of radio waves appear in the sky from all directions, and their origins remain mostly unknown. Mysterious Outburst's Quiet Cosmic Home Yields More Questions Than Answers 2019-06-27T04:00:00Z And some 70 other observatories were busy for months, watching the event unfold across the electromagnetic spectrum, from radio waves to X-rays. Gravitational waves hint at detection of black hole eating star 2019-04-25T04:00:00Z They swallow light, not only the visible spectrum of blues and reds but also the X-rays and radio waves we are blind to, revealing the intricate structures of distant galaxies and misty Technicolor nebulas. Perspective | What it means for us to actually ‘see’ a black hole 2019-04-12T04:00:00Z The image was produced by the Event Horizon Telescope, a network of 10 radio telescopes spread across the planet and functioning as if it were a single receiver, one tuned to high-frequency radio waves. See a black hole for the first time in a historic image from the Event Horizon Telescope 2019-04-10T04:00:00Z The UK government says "while a small increase in overall exposure to radio waves is possible when 5G is added to the existing network, the overall exposure is expected to remain low". Does 5G pose health risks? 2019-07-14T04:00:00Z As the radio waves from FRBs travel to Earth, they pass through wisps of ionized gas that exist throughout intergalactic space and become distorted, based on just how much stuff they encounter along the way. Mysterious Outburst's Quiet Cosmic Home Yields More Questions Than Answers 2019-06-27T04:00:00Z Lidar is similar to radar but uses laser light instead of radio waves. Americans still don't trust self-driving cars, Reuters/Ipsos poll... 2019-04-01T04:00:00Z The radio waves collected by the telescopes and assembled into the picture are translated into color for our benefit. Perspective | What it means for us to actually ‘see’ a black hole 2019-04-12T04:00:00Z A pulse of radio waves then tips the protons away from the magnetic field, causing them to twirl en masse, like so many gyroscopes. Clever math enables MRI to map molecules implicated in multiple sclerosis, other diseases 2019-03-20T04:00:00Z In the experiment, each of the 34 participants sat quietly in a dark aluminum box that shielded them from electromagnetic noise such as radio waves. Humans—like other animals—may sense Earth's magnetic field 2019-03-18T04:00:00Z “The radio waves from the burst are affected by this,” says Ryan Shannon of the Swinburne University of Technology in Australia, a co-author of the new paper. Mysterious Outburst's Quiet Cosmic Home Yields More Questions Than Answers 2019-06-27T04:00:00Z During flight, controllers will also test a communications system that uses laser light, rather than conventional radio waves. Metal world 'may have iron volcanoes' 2019-03-18T04:00:00Z Astronomers on Earth detect the beams as metronomic pulses of radio waves. A homespun Canadian telescope could explain mysterious radio signals from the distant universe 2019-03-14T04:00:00Z The protons then radiate radio waves of their own. Clever math enables MRI to map molecules implicated in multiple sclerosis, other diseases 2019-03-20T04:00:00Z Some elements of 5G phones, such as the design of antennas and chips for handling analog radio waves, are more complicated than previous generations of phones. Qualcomm launches new chip to power 5G smart phones 2019-02-19T05:00:00Z These brief, bright flashes of radio waves appear to originate in distant galaxies and yet their precise sources remain unknown, making them one of the most intriguing puzzles in astrophysics. Monster Magnetar Pinpointed as Trigger of Ultrabright Stellar Detonation 2019-02-14T05:00:00Z That will tell you how long it takes for radio waves from the game to reach the center of Mars. What time is the Super Bowl throughout the Solar System? 2019-02-03T05:00:00Z In another clue, the polarization of the FRB's radio waves rotates rapidly, suggesting they emanate from a strong magnetic environment. A homespun Canadian telescope could explain mysterious radio signals from the distant universe 2019-03-14T04:00:00Z The data suggest that the radio waves from the bursts were scattered by whatever surrounds the sources. Broadcasting from Deep Space, a Mysterious Series of Radio Signals 2019-01-10T05:00:00Z In galaxies far, far away, something or someone is creating peculiar short bursts of radio waves that are so powerful that scientists are picking them up on Earth. A weird, immensely powerful radio signal is perplexing astronomers 2019-01-11T05:00:00Z Navigation systems in cars or phones rely on radio waves from satellites high above the Earth to pinpoint their position on the ground. Shifting north magnetic pole forces unprecedented navigation fix 2019-01-11T05:00:00Z Earlier this week, astronomers announced that they had observed repeated bursts of radio waves coming from deep space, with some experts suggesting this could be evidence of alien life. The aliens are coming. And they’ve caught us with our pants down | James Felton 2019-01-11T05:00:00Z Just as synchrotrons on Earth whip electrons around racetracks to emit useful x-rays, those gyrations spawn a coherent pulse of radio waves. A homespun Canadian telescope could explain mysterious radio signals from the distant universe 2019-03-14T04:00:00Z This requires all the telescopes in the array to swivel towards the target black hole and measure every radio wave coming from its direction. Scientists close to first sighting of black hole in the Milky Way 2019-01-11T05:00:00Z The precise nature and origin of the blasts of radio waves is unknown. Mysterious radio signals from deep space 2019-01-09T05:00:00Z These explosions of radio waves will last for just milliseconds and then disappear, never to be seen again. Astronomers find another source of repeating radio bursts from outside our galaxy 2019-01-09T05:00:00Z And The Washington Post discovered a live stream that lets you listen to the ping of radio waves reflected back to Earth by the clouds of ionized gases in the meteors’ wakes. Watch the brilliant Geminid meteor shower celebrated by today’s Google Doodle 2018-12-13T05:00:00Z It’s worth noting that, while Shatner responded to his critics, several people were on board with his call to defend the controversial song and make attempts to restore it to the radio waves. William Shatner battles with fans over defense of 'Baby It's Cold Outside' 2018-12-12T05:00:00Z Every second it sent 12,000 radio wave pulses down into the ice, reflecting off the ice layers and allowing the team to measure the thickness, structure and age of the ice sheet. Ice Age Asteroid Crater Discovered Beneath Greenland Glacier 2018-11-14T05:00:00Z But to get a full picture of the energetic events happening, the researchers needed to look more broadly at the spectrum of electromagnetic energy, from radio waves to gamma rays. Holy Cow! Astronomers agog at mysterious new supernova 2018-11-01T04:00:00Z The experiment, by the National Toxicology Program, found positive but relatively modest evidence that radio waves from some types of cellphones could raise the risk that male rats develop brain cancer. Study links cellphones, cancer; FDA says it’s a bad connection 2018-11-01T04:00:00Z Among the other male scientists and technicians in the pictures is Jagadis Chandra Bose, who found a new way to detect radio waves in the late 1890s. Sir Quentin finds inspiration in science 2018-10-18T04:00:00Z From mid-century, astronomers looked at the Universe in electromagnetic wavelengths from radio waves to γ-rays, and identified distant objects that generated geysers of radiation — a match for theoretical black holes. Black-hole chronicles: chasing the gravitational beast 2018-10-16T04:00:00Z It's a room where a wireless internet connection is provided not through wi-fi, but li-fi - a system that transmits data through light waves rather than radio waves. How light could help superfast mobile reach even further 2018-10-10T04:00:00Z In a stellar explosion, charged particles emit radio waves as they spiral inside strong magnetic fields, and their wavelengths stretch out as the material spreads out. Holy Cow! Astronomers agog at mysterious new supernova 2018-11-01T04:00:00Z They employ much higher frequencies, and these radio waves are far less successful at penetrating the bodies of humans and rats, scientists say. Study links cellphones, cancer; FDA says it’s a bad connection 2018-11-01T04:00:00Z Small cell 5G technology relies on higher-frequency radio waves than current wireless services to deliver faster speeds — but at shorter ranges. 5G service rolls out — but not without controversy - Los Angeles Times 2018-10-06T04:00:00Z One paper focused on the region of Saturn’s atmosphere that produces auroral radio emissions to try to understand how those radio waves are produced. Cassini's Death Dive into Saturn Reveals Weird Ring "Rain" and More 2018-10-05T04:00:00Z It’s using new technologies and faster radio waves to deliver faster internet service, which is ultimately the big picture description of what 5G is. Is Verizon’s 5G home internet real 5G? 2018-10-02T04:00:00Z Their service, often called “fixed wireless,” can provide broadband access to an area’s homes and businesses through radio waves rather than cables. FCC Moves to Free Up More Airwaves 2018-10-01T04:00:00Z That’s why Verizon is pushing residential service first, while AT&T is building a more traditional cellular network for people on the go, using radio waves at the lower end. Can wireless challenge cable for home internet service? 2018-10-01T04:00:00Z Verizon has spent billions of dollars for rights to previously unused radio waves at the high end of the frequency spectrum. Can wireless challenge cable for home internet service? 2018-10-01T04:00:00Z Lidar’s principles are similar to radar, except instead of radio waves lidar relies on laser light. This major discovery upends long-held theories about the Maya civilization 2018-09-27T04:00:00Z Most important among those is the use of millimeter wave, the radio waves that will be the backbone of 5G connections. Is Verizon’s 5G home internet real 5G? 2018-10-02T04:00:00Z The trajectory of the shower bends in Earth’s magnetic field, which causes it to produce radio waves that beam ahead of the shower like a headlight. Oddball particles tunneling through Earth could point to new physics 2018-09-27T04:00:00Z She operated the instruments and analyzed the data, poring over miles of chart paper etched with the inked recordings of galactic radio waves. She made the discovery, but a man got the Nobel. A half-century later, she’s won a $3 million prize. 2018-09-08T04:00:00Z That’s why Verizon is pushing residential service first, while AT&T; is building a more traditional cellular network for people on the go, using radio waves at the lower end. Can wireless challenge cable for home internet service? 2018-10-01T04:00:00Z The needles were meant to enable radio communications if high-altitude nuclear testing were to wipe out the ionosphere, the atmospheric layer that reflects radio waves over long distances. The quest to conquer Earth’s space junk problem 2018-09-04T04:00:00Z We peruse dark energy, radio waves and quasars — beacon-like galaxies in which supermassive black holes feed off interstellar gas and release vast amounts of energy. Ode to a tiny porpoise, a kaleidoscopic tour of light, and a visit to the fossil market: Books in brief 2018-09-03T04:00:00Z The short radio waves power radars, cook foods, relay messages and link cellphones to antenna towers. Embassy illnesses in Cuba point to mysterious world of microwave weapons 2018-09-01T04:00:00Z She wound up with a “fantastic miscellany of jobs,” studying the universe in every conceivable wavelength of light: X-ray, gamma ray, radio wave, infrared. She made the discovery, but a man got the Nobel. A half-century later, she’s won a $3 million prize. 2018-09-08T04:00:00Z Time things just right and the passing particles surf the radio waves’ electric fields to gain energy. Much cheaper, smaller atom smashers may be on the horizon 2018-08-29T04:00:00Z The scanners use radio waves to identify objects, including guns and nonmetallic explosives, concealed under a jacket or in a pocket. L.A.'s rail system will be first in the U.S. to use scanners that detect explosives 2018-08-14T04:00:00Z It sends radio waves bouncing off the surface and subsurface layers; the way in which the radar signal reflects back reveals the type of material that is present, such as rock, ice or water. There’s water on Mars! Signs of buried lake tantalize scientists 2018-07-24T04:00:00Z Other observatories saw flares of X-rays, radio waves and visible light. In a cosmic first, scientists detect ‘ghost particles’ from a distant galaxy 2018-07-12T04:00:00Z A gown made of zigzag strips that resembled radio waves undulated down a model with a stylish bounce. Dior celebrates the atelier, draws celebs to Paris couture 2018-07-02T04:00:00Z It’s true we’re already surrounded by energy from radio waves and the sun. Whoa! Meet the future phones that fold up, have 9 cameras and charge over thin air. 2018-06-30T04:00:00Z Lower-frequency radio waves do better transmitting over longer distances and through walls, floors and other objects. Wi-Fi router range: the long and the short of it 2018-06-22T04:00:00Z Their metronomic radio wave pulses serve as precise clocks that help astronomers study gravity in extreme conditions. New radio telescope in South Africa will study galaxy formation 2018-06-19T04:00:00Z That July another team led by Pérez-Torres detected a bright source of radio waves from the same location. Giant Black Hole Swallows Star and Belches Out Superfast Particle Jet 2018-06-14T04:00:00Z Previously, when spacecraft visiting Jupiter detected radio waves from lightning, they found only kilohertz emissions, or those of relatively low frequency. Surprise! Jupiter's Lightning Looks a Lot Like Earth's 2018-06-07T04:00:00Z By firing radio waves and measuring their echo, the satellite reveals greater detail than a photograph. Deep in the Desert, Iran Quietly Advances Missile Technology 2018-05-23T04:00:00Z That instrument also noticed a burst of radio waves during the flyby — and it occurred right in the middle of the magnetic anomaly. New Dive Into Old Data Finds Plumes Erupt From Jupiter’s Moon Europa 2018-05-14T04:00:00Z Other anti-smart-meter groups claim the devices pose health risks because the wireless technology used to transmit data creates radio waves that may cause cancer or other illnesses. ‘Smart’ meters in Washington state: Convenience or potential invasion of privacy? 2018-05-13T04:00:00Z Ramming into the diffuse gas of the interstellar medium, the jets would produce copious radio waves potentially visible from Earth. Giant Black Hole Swallows Star and Belches Out Superfast Particle Jet 2018-06-14T04:00:00Z In another new study, researchers again examined radio data from Juno, which passes up to nearly 50 times closer to Jupiter than Voyager 1 did, potentially allowing it to detect more radio waves. Surprise! Jupiter's Lightning Looks a Lot Like Earth's 2018-06-07T04:00:00Z They transmit radio waves and measure the time it takes for those waves to bounce back, and any changes in their frequency. How paint jobs can make sensors and autonomous cars safer 2018-04-05T04:00:00Z The magnetic resonance imaging machine is a superconducting magnet coiled in wire that bounces pulsing radio waves off patients and creates three-dimensional pictures of their anatomy on a computer. Claustrophobia can turn MRI into frightening experience 2018-03-09T05:00:00Z On that note, my ears hurt at the thought of the shrieking Republicans would be hammering across the a.m. radio waves if this were Obama or any other Democrat doing this very same thing. Trump Accepts North Korea’s Invitation to Discuss Its Nuclear Program 2018-03-08T05:00:00Z The antenna beams radio waves from Earth, which Juno’s transponder receives and sends back. Juno Peers Deep into Jupiter's Abyss to Reveal Weird Winds 2018-03-07T05:00:00Z For the first time, the scientists detected radio waves from Jovian lightning that were megahertz in nature, or thousands of times higher in frequency than those previously seen. Surprise! Jupiter's Lightning Looks a Lot Like Earth's 2018-06-07T04:00:00Z The same is true of lidar, which is similar to radar except that it employs infra-red laser light instead of radio waves. How paint jobs can make sensors and autonomous cars safer 2018-04-05T04:00:00Z As it orbits Jupiter, Juno sends radio waves back to Earth. New Photo Shows Huge Cyclone Horde on Jupiter 2018-03-07T05:00:00Z The presence of stars manifested itself as a telltale dip in the intensity of a bath of radio waves, so-called cosmic microwaves, leftover from the fires of creation itself. When Stars Were Born: Earliest Starlight’s Effects Are Detected 2018-02-28T05:00:00Z The signal disappeared because VHF radio waves cannot pass through mountains. East of Siberia: Heeding the Sign 2018-03-05T05:00:00Z They also placed their detector in a remote region of Australia, in the hopes of being as far away from human-generated radio waves as possible. Rare signal from early universe sends scientists clues about dark matter 2018-03-02T05:00:00Z The dip is swamped by other, more local, sources of radio waves. Cosmic dawn: astronomers detect signals from first stars in the universe 2018-02-28T05:00:00Z Since it’s difficult to see so far back in time, a team of astronomers turned to radio waves to listen in on the early Universe, using an antenna deep in the Australian desert. 13.6 billion years later, astronomers have found clues to our earliest stars 2018-02-28T05:00:00Z Hydrogen in empty space is prone to radiate radio waves with a wavelength of 21 centimeters. When Stars Were Born: Earliest Starlight’s Effects Are Detected 2018-02-28T05:00:00Z That’s how astronomers identified the fingerprints of the earliest stars in radio waves detected by a small antenna in western Australia. We May Have Found the First Stars Born After the Big Bang 2018-02-28T05:00:00Z The smartphone challenge with 5G technology is finding a way to allow the radio waves to pass through different objects – some things, like the human body, can easily absorb them. T-Mobile announces first cities to get 5G technology this year 2018-02-27T05:00:00Z Free spectrum abounds in the higher bands—in particular where the length of radio waves is counted in millimetres. The next generation of wireless technology is ready for take-off 2018-02-08T05:00:00Z The key is that the radio waves were highly polarized, the light waves vibrating up and down in only one direction, as if viewed through powerful glare-reducing sunglasses. Magnetic Secrets of Mysterious Radio Bursts in a Faraway Galaxy 2018-01-10T05:00:00Z Of course, he adds, the accuracy of the device isn’t just in the radio waves, but in the algorithm that the company uses to interpret the raw data. When it comes to sleep gadgets, the ideas are moving faster than the research 2018-01-11T05:00:00Z Next, thousands of scientists around the world mobilized to conduct a coordinated study of the merger's afterglow across the entire electromagnetic spectrum, the range of frequencies from gamma rays to visible light to radio waves. Better Instruments Give Scientists a New Way to Study the Cosmos 2018-01-11T05:00:00Z When polarized radio waves pass through magnetic fields and charged particles, their polarization becomes twisted like a corkscrew; the denser the particles and the more intense the magnetic field, the greater the twisting. Dead Stars Orbiting Black Holes May Explain Mysterious Fast Radio Bursts 2018-01-10T05:00:00Z In a new study, astronomers suggest this might explain these bizarre intergalactic radio waves, known as fast radio bursts. Mysterious radio signals may come from a zombie star lurking near a supermassive black hole 2018-01-10T05:00:00Z Called Faraday rotation, the signal is produced when radio waves are twisted as they travel through magnetic fields. Mystery Radio Bursts From Space Just Got Even Weirder 2018-01-10T05:00:00Z The key here, however, isn’t the details of how accurate the radio waves or the algorithm is. When it comes to sleep gadgets, the ideas are moving faster than the research 2018-01-11T05:00:00Z The first is, unfortunately, pretty bad: if you’re worried about the health effects of radio waves, that isn’t a problem here. This lamp beams internet to your laptop 2018-01-07T05:00:00Z Meanwhile, however, her fear and anxiety transmit like radio waves, informing her daughter’s own attempt to escape reality. ‘Daughters of the Air’: Coping with loss in repressive times 2018-01-03T05:00:00Z When analyzing their data, they found a distortion in the radio waves. Mysterious radio signals may come from a zombie star lurking near a supermassive black hole 2018-01-10T05:00:00Z About three billion light-years away, that mysterious object continually hurls humongous blasts of radio waves into the cosmos. Mystery Radio Bursts From Space Just Got Even Weirder 2018-01-10T05:00:00Z He called radio an “oscillator” through which electricity is converted into high-frequency radio waves, enabling energy, sound and other transmissions over great distances. Tesla the Car Is a Household Name. Long Ago, So Was Nikola Tesla. 2017-12-30T05:00:00Z Except, evidence is slim that Wi-Fi or other radio waves are harmful to humans — our current understanding of radio waves suggests they ought not to harm us. This lamp beams internet to your laptop 2018-01-07T05:00:00Z The charged particles in the ionosphere reflect radio waves, supporting our communications systems. August Solar Eclipse Created Boat-Like Ripples in Earth's Atmosphere 2017-12-26T05:00:00Z Antennas - pieces of metal more often encased in plastic - allow data to be transmitted and received via radio waves. The company that helps elephants and rocket cars 2017-12-19T05:00:00Z The discovery adds to astronomers’ understanding of phenomena known as fast radio bursts, or FRBs, which are magnificently energetic flashes of radio waves that last for mere fractions of a second. Mystery Radio Bursts From Space Just Got Even Weirder 2018-01-10T05:00:00Z At the beginning of September, astronomers heard 15 blasts of radio waves hurling through space. Unsolved Science Mysteries From 2017 2017-12-18T05:00:00Z The antenna’s signal is reflected by the radio waves broadcast by your Wi-Fi router. No batteries, wires or plugs: UW team makes plastic devices that communicate via Wi-Fi 2017-12-09T05:00:00Z The antenna transmits radio waves that enter the body and are reflected. Contactless health-care sensing But sometimes you don’t want your device bombarded with radio waves — particularly if you’re looking to protect sensitive information on your device. Perspective | Must have gifts for those who want to protect their data 2017-11-16T05:00:00Z They found a connection between the star’s emissions of x-rays and radio waves that reveals the nature of this energetic tug-of-war between gravity and magnetic fields. Black Hole Pretenders May Be Superfast-Spinning Pulsars 2017-11-22T05:00:00Z Magnetic resonance imaging uses strong magnetic fields and radio waves to produce detailed images of the inside of the body. New scanner 'like 100 MRIs in one' 2017-11-20T05:00:00Z When the switch is toggled on and off, the antenna either reflects or absorbs radio waves broadcast by your router. No batteries, wires or plugs: UW team makes plastic devices that communicate via Wi-Fi 2017-12-09T05:00:00Z These tags are battery-powered and continuously emit radio waves, which means that they do not need to receive electromagnetic energy from a reader. Contactless health-care sensing This week, they announced the detection of a fifth such disturbance—but this time astronomers saw it, too, at every wavelength of light from gamma radiation to radio waves. Top stories: Vanishing insects, merging neutron stars, and why we haven’t made alien contact 2017-10-20T04:00:00Z Radar does the same thing, using radio waves instead. The billion dollar widget steering the driverless car industry 2017-10-18T04:00:00Z Thanks to the quick detective work, scientists were able to study the explosion across the electromagnetic spectrum, in everything from radio waves to gamma-rays. In a First, Pictures Show Gravitational Waves Being Born 2017-10-16T04:00:00Z Previously, scientists could only study space by observing electromagnetic waves such as radio waves, visible light, infrared light, X-rays and gamma rays. In first, scientists detect gravitational waves and light from star collision 2017-10-16T04:00:00Z As the jet slowed down and widened, encountering interstellar gas in the galaxy, it began to glow in X-rays and then radio waves. LIGO Detects Fierce Collision of Neutron Stars for the First Time 2017-10-16T04:00:00Z Today, they announced the detection of a fifth such disturbance—but this time astronomers saw it too, at every wavelength of light from gamma radiation to radio waves. Merging neutron stars generate gravitational waves and a celestial light show 2017-10-16T04:00:00Z LIDAR, short for “light detection and ranging,” adopts Radar’s approach, but uses lasers in place of radio waves. The billion dollar widget steering the driverless car industry 2017-10-18T04:00:00Z Plus, it took longer than expected for x-rays and radio waves to hit detectors following the blast. In a First, Pictures Show Gravitational Waves Being Born 2017-10-16T04:00:00Z Previously, scientists could only study space by observing electromagnetic waves such as radio waves, visible light, infrared light, X-rays and gamma rays. In first, scientists detect gravitational waves and light from star collision 2017-10-16T04:00:00Z Astronomers gathered as much data about the event as possible, measuring everything from X-rays and ultraviolet light to infrared and radio waves. For the first time, astronomers detect gravitational waves from two neutron stars colliding 2017-10-16T04:00:00Z Nearly 2 weeks later, the source began to emit x-rays and radio waves. Merging neutron stars generate gravitational waves and a celestial light show 2017-10-16T04:00:00Z To find this specific star-forming region, scientists leveraged the Earth’s orbit around the Sun, observing the source’s radio waves from different vantage points as the Earth travels through the Solar System. Astronomers locate distant region of newly forming stars on the far side of the Milky Way 2017-10-12T04:00:00Z Scientists are hoping that continued observations in radio waves, which should be visible for quite a while longer, will help resolve the issue. In a First, Pictures Show Gravitational Waves Being Born 2017-10-16T04:00:00Z It’s a bit like seeing the sky in radio waves, infrared, and optical wavelengths; we learn something new from looking at it through all those filters. Gravitational Waves Won the Physics Nobel Prize—Here's Why 2017-10-03T04:00:00Z The telescope is used to detect radio waves, and it’s helped astronomers discover everything from the first exoplanets to neutron stars. How Puerto Rico is trying to recover from Hurricane Maria's devastation 2017-09-26T04:00:00Z It can also work as a radar, sending out beams of radio waves and detecting the echoes from plasma in the upper atmosphere as well as from planets and near-Earth asteroids. Hurricane damage threatens Arecibo Observatory’s future 2017-09-26T04:00:00Z The radio waves went flat, and the spacecraft fell silent. NASA's Cassini Spacecraft Has Crashed Into Saturn 2017-09-15T04:00:00Z Soon after, it will turn its antenna toward Earth, sending a steady pulse of radio waves about everything it senses as it plunges toward its demise. Cassini was the mission of a lifetime for this NASA scientist. Now she must say goodbye. 2017-09-14T04:00:00Z Like Wi-Fi, this allows computers to talk to each other with radio waves. A clever way to transmit data on the cheap 2017-09-13T04:00:00Z In 1902, Heaviside theorized — at the same time as US engineer Arthur Kennelly — that radio waves propagated around the world because they bounced off a layer of charged gas particles in the ionosphere. Engineering: Reclusive genius who connected the world : Nature : Nature Research 2017-09-12T04:00:00Z The bubbles can be fashioned by applying radio waves of the right frequency to a BEC, Lundblad explains, and at first, researchers hope to simply jiggle the bubbles and see how they react. Coolest science ever headed to the space station 2017-09-07T04:00:00Z Mr Manning says the industry is also looking for ways to shield equipment from electromagnetism, for example by using Faraday cages, metallic structures that block radio waves, to render the threat less effective. America’s electricity industry prepares for a nuclear threat to the grid 2017-09-07T04:00:00Z Located near the clump of gas was a source of radio waves resembling those of Sagittarius A, the massive black hole at the center of the Milky Way, Science reports. Scientists Discover Evidence of a Black Hole in the Milky Way 2017-09-04T04:00:00Z That means the frequency of the carrier wave—the basic radio wave, which is then deliberately deformed in order to carry data—rises and falls in a sawtooth pattern. A clever way to transmit data on the cheap 2017-09-13T04:00:00Z In the late 1890s, as Guglielmo Marconi and Nikola Tesla were investigating wireless telegraphy, theoreticians puzzled about the propagation of radio waves. Engineering: Reclusive genius who connected the world : Nature : Nature Research 2017-09-12T04:00:00Z And right next to the clump was a faint source of radio waves. Long-rumored midsized black hole may be hiding out in the Milky Way 2017-09-04T04:00:00Z These rotating neutron stars launch humongous flares into the cosmos, but whether those flares are somehow linked to the barrage of radio waves is still a mystery. Storm of Strange Radio Bursts Emerges From Deep Space 2017-09-01T04:00:00Z Such an event should also emit radiation across the electromagnetic spectrum—from radio waves to γ-rays—which telescopes might be able to pick up. Rumors Swell Over New Kind of Gravitational-Wave Sighting 2017-08-24T04:00:00Z As those beams wash over Earth, they appear as pulses of radio waves. Strange Stars Caught Wrinkling Spacetime? Get the Facts. 2017-08-25T04:00:00Z Such an event should also emit radiation across the electromagnetic spectrum — from radio waves to γ-rays — which telescopes might be able to pick up. Rumours swell over new kind of gravitational-wave sighting 2017-08-23T04:00:00Z One of these, called a millimeter-wave scanner, uses radio waves to search for hidden weapons or devices. You Asked: Are Airport Body Scanners Safe? 2017-08-23T04:00:00Z |
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