| 单词 | binary system |
| 例句 | Novae occur only in binary systems and are powered by hydrogen fusion; supernovae occur in single stars and are powered by silicon fusion. Cosmos 1980-01-01T00:00:00Z “I want photography to support this fact. I want to challenge binary systems of thinking and overcome them.” The Emerging Photographer Inspired by Classical Portraiture 2018-03-28T04:00:00Z The story operates on the classic dramatic binary system in which like pairs off with like. Review: Renée Fleming Plays Against Type in ‘Living on Love’ 2015-04-20T04:00:00Z The show juxtaposes actual paintings, sculptures and drawings, not photographs; but the binary system creates a closed loop that has trouble breaking out. LACMA's uneven new Picasso and Rivera show reveals an unprecedented, must-see discovery 2016-12-09T05:00:00Z The Force Awakens conjured up a confusing picture of the state of the all-powerful energy field, with blurred lines where the clear binary system of Jedi and Sith once sat. Could The Last Jedi's title bode well for Star Wars' spirit of invention? 2017-01-23T05:00:00Z The brain can't see it because appetite is determined by a binary system. Robert Lustig: the man who believes sugar is poison 2014-08-24T04:00:00Z Yet these lovers are a binary system; they need each other. Sarah Gerard's debut, 'Binary Star,' radiates beauty 2015-01-08T05:00:00Z For Bieber, morality is a binary system -- you’re either a good guy or a bad guy, never both at the same time. Justin Bieber and Kanye West: How their charm offensives differ 2015-01-30T05:00:00Z But even in these new areas, the binary system applied: win or lose, pass or fail. Falling short: seven writers reflect on failure 2013-06-22T07:00:00Z Lucy was able to observe that Dinkinesh is a binary system, meaning there is a small natural satellite in orbit around it. ‘Dinky’ Asteroid Is Three Space Rocks, Not Two, NASA Flyby Finds 2023-11-08T05:00:00Z Prior to their venture, they were once two normal massive stars that formed a binary system in their home spiral galaxy. First detection of heavy element from star merger 2023-10-25T04:00:00Z Although many such rogue planets have been discovered, it’s not at all clear how they could form a binary system. Stunning Images Reveal Rogue Planets of the Orion Nebula 2023-10-20T04:00:00Z Little is known about the true nature of this star other than the fact that it is rich in Helium, it is more massive than our Sun and is part of a binary system. Magnetars Origin Story 2023-08-23T04:00:00Z In this binary system, astronomers realized, dust forms when the pair makes its closest approach. Rare ‘Pinwheel’ Stars Are a Beautiful Astronomical Puzzle 2023-08-18T04:00:00Z Contact binary systems seem to be fairly common throughout our solar system, but scientists hadn't seen one orbiting another asteroid prior to Dinkinesh, Lucy's deputy project scientist John Spencer said in the statement. ‘Dinky’ Asteroid Is Three Space Rocks, Not Two, NASA Flyby Finds 2023-11-08T05:00:00Z In this case, the neutron stars remained as a binary system despite two explosive jolts and were kicked out of their home galaxy. First detection of heavy element from star merger 2023-10-25T04:00:00Z Is there some new mechanism that kicks in at low masses that promotes Jupiter-class objects popping up in wide binary systems? Stunning Images Reveal Rogue Planets of the Orion Nebula 2023-10-20T04:00:00Z In a binary system, if the stars are close enough, the companion star can eat up materials from the supernova progenitor - the star about to go supernova. A Supernova Coming Back to Life 2023-03-21T04:00:00Z But most massive stars live in binary systems with a twin, and the same fate that befell our first star eventually came for its partner, leaving two neutron stars circling each other. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z “It poses many questions about how this binary system was formed,” Dr. el-Badry said in the news release, “as well as how many of these dormant black holes there are out there.” Astronomers Find a Black Hole in Our Cosmic Back Yard 2022-11-05T04:00:00Z Each star in the WR 140 binary system is far more massive than the sun. Dazzling New JWST Image Shows Dusty Stellar Spirals 2022-10-25T04:00:00Z Since both stars are moving in a binary system, lines that showed no motion puzzled astronomers. Astronomy 2016-10-13T00:00:00Z This confirmed assumptions that a binary system created the nebula. Behold, Some Hidden Gems from JWST’s First Images 2022-07-21T04:00:00Z But this is a binary system — two stars, bound together by gravity. Take a cosmic tour inside the images captured by NASA’s Webb telescope Combing through the enormous new catalog of binary systems in DR3 in the days after the release, though, “we were like, ‘Really? Gaia’s Multi-Billion-Star Map of the Milky Way Keeps Getting Better 2022-06-22T04:00:00Z An artistic impression of a white dwarf in a binary system, where a micronova might occur. "Micronova" explosions spotted on distant zombie stars 2022-04-20T04:00:00Z It is possible that, under the right circumstances, a binary system can even survive the explosion of one of its members as a type II supernova. Astronomy 2016-10-13T00:00:00Z It may be impossible to tell from looking solely at x-ray emissions if an x-ray binary system contains a black hole or an imposter neutron star. Swarms of Black Holes at the Milky Way’s Heart? Maybe Not 2022-04-05T04:00:00Z They also hope to see whether Earendel was a solitary star or binary system, learn more about the star’s temperature and mass, among other properties. Meet Earendel, the most distant star ever detected 2022-03-30T04:00:00Z We have to get out of that mindset, just as it's not a binary system where it's conviction or acquittal, and then the end justifies the means. CNN's Laura Coates dares the right to come after Joe Biden's Supreme Court pick 2022-02-21T05:00:00Z Then the team noticed the same short brightening events happen with two other white dwarfs, also in binary systems. "Micronova" explosions spotted on distant zombie stars 2022-04-20T04:00:00Z He was also able to show that cepheid variable stars are not binary systems, as some people thought at the time, but individual stars that pulsate with striking regularity. Astronomy 2016-10-13T00:00:00Z X-ray binary systems containing a black hole, they argue, would flare less frequently than others harboring a neutron star. Swarms of Black Holes at the Milky Way’s Heart? Maybe Not 2022-04-05T04:00:00Z It is possible, though, that these black holes can also form in binary systems too before becoming nomads in the void. Astronomers Find First-Ever Rogue Black Hole Adrift in the Milky Way 2022-02-03T05:00:00Z The two asteroids, called a binary system, orbit the sun every two years along an egg-shaped path that stretches out near Mars and back around near Earth. NASA Launches New Mission: Crash Into Asteroid, Defend Planet Earth 2021-11-24T05:00:00Z Astronomers call those two asteroids a binary system, where one is a mini-moon to the other. NASA is crashing a spacecraft into an asteroid. Here’s how to watch the launch late tonight 2021-11-23T05:00:00Z The discovery of the first stellar mass black hole in the binary system Cygnus X-1 was announced in 1971, several years after the discovery of quasars. Astronomy 2016-10-13T00:00:00Z Tuthill says there are secondary targets that could be examined after Alpha Centauri, also with the Toliman telescope, namely other nearby binary systems such as 61 Cygni, which is 11 light-years away. Scientists Plan Private Mission to Hunt for Earths around Alpha Centauri 2021-11-17T05:00:00Z When two galaxies collided and merged — an especially common event in the earlier universe — their central black holes would meet and form a binary system, two black holes circling each other. Missing: One Black Hole With 10 Billion Solar Masses 2021-01-19T05:00:00Z “Another possibility involves a binary system, such as a neutron star orbiting another neutron star or black hole.” Mysterious repeating radio signals from outside our galaxy discovered 2020-06-18T04:00:00Z One possibility considered by different groups is that the FRB source is in a binary system involving a neutron star, and that the approximately 16-day period is the orbital period of that system4,13,14. Unexpected emission pattern adds to the enigma of fast radio bursts 2020-06-16T04:00:00Z The evolution of such a binary system is shown in Figure 23.18. Astronomy 2016-10-13T00:00:00Z In contrast, other known black holes in binary systems are the companion of a star that they feast from, and are surrounded by glowing disks of material emitting copious x-rays. Astronomers May Have Found the Closest Black Hole to Earth 2020-05-06T04:00:00Z They thought it was a binary system but there was an extra wobble in the periodic light shifts of one of the stars that indicated something else was asserting its presence. Astronomers find closest black hole to Earth, hiding in plain sight 2020-05-06T04:00:00Z They had been part of what is called a binary system with two stars gravitationally bound to each other. Scientists enthralled by biggest star explosion ever observed 2020-04-14T04:00:00Z This window would be observed periodically from Earth as the binary system rotates. Unexpected emission pattern adds to the enigma of fast radio bursts 2020-06-16T04:00:00Z The leading alternative mechanism scientists believe creates a type Ia supernova is the merger of two white dwarf stars in a binary system. Astronomy 2016-10-13T00:00:00Z Because the orbital period of the binary system is less than two days, HD74423 is being distorted into a teardrop shape by the red dwarf’s gravitational pull. Amateur astronomers help discover incredible teardrop-shaped star 2020-03-10T04:00:00Z Thus, if planetesimals form via collapse, most of them should begin as binary systems—some of which will then either slowly merge together or lose their companions through gravitational interactions. New Horizons May Have Solved Planet Formation Cold Case 2020-02-20T05:00:00Z At that rate, binary systems among asteroids “are five times more common than twins in the human population,” Margot said. Astronomers spy near-Earth asteroid that has its own moon 2020-02-14T05:00:00Z “While the good agreement of these observations with theory is already very promising, we will need to study more young binary systems in detail to better understand how multiple stars form.” Astronomers discover 'cosmic pretzel' 700 light-years away from Earth 2019-10-04T04:00:00Z In real life, Kepler’s law allows us to calculate only the combined mass of the two stars in the binary system. Astronomy 2016-10-13T00:00:00Z In a binary system such as Alpha Centauri, it becomes much more so. The Hunt Is on for Alpha Centauri's Planets 2019-08-05T04:00:00Z The detection works like this: When two stars form a binary system, they do not technically orbit each other; instead they orbit a common center of mass. Future Gravitational Wave Detectors Could Find Exoplanets, Too 2019-07-08T04:00:00Z In 2018, Max Planck researchers were part of a large global team that observed the creation of a neutron star binary system for the first time. Top 10 institutions for physics in 2018 2019-06-18T04:00:00Z If the ripples are confirmed, it would be the first evidence of the existence of such binary systems. Daily briefing: How to see quantum weirdness with our own eyes 2019-04-28T04:00:00Z A plot showing how the velocities of the stars change with time is called a radial velocity curve; the curve for the binary system in Figure 18.6 is shown in Figure 18.7. Astronomy 2016-10-13T00:00:00Z If confirmed, it would be the first evidence of the existence of such binary systems. Gravitational waves hint at detection of black hole eating star 2019-04-25T04:00:00Z Astronomers believe it is a contact binary, made up of two objects touching each other, or perhaps even a binary system, in which two objects orbit each other. NASA has a New Year’s date with a distant space rock. Here’s how to watch. 2018-12-30T05:00:00Z Word of the binary system being pushed by China and its allies was circulating. The 'climate diaspora' trying to save the Paris agreement from Trump 2018-12-03T05:00:00Z The distinction is that unlike anti-black racism, which requires a fixed hierarchy or binary system of values — i.e., Charleston to Tree of Life: White nationalism is a threat to us all 2018-10-31T04:00:00Z One of the best things about this method is that it is independent of the location of the binary system. Astronomy 2016-10-13T00:00:00Z The authors show that their results improve on certain pre-existing constraints on the parameters that govern these theories — some arising from Solar System measurements and some from data on binary systems containing a pulsar. General relativity verified by a triple-star system 2018-07-03T04:00:00Z Almost all are found in close binary systems that comprise a normal star and a compact companion. Bounteous black holes at the Galactic Centre 2018-04-15T04:00:00Z Modern computer and information technology depends on the binary system of ones and zeros, or up and down, or on and off, corresponding to the presence or absence of an electrical current. Peter Gruenberg, Nobel-winning scientist who advanced computer technology, dies at 78 2018-04-10T04:00:00Z They report the discovery of a dozen inactive and low-mass "binary systems", in which a star orbits an unseen companion - the black hole. Dozen black holes at galactic centre 2018-04-04T04:00:00Z Name and describe the three types of binary systems. Astronomy 2016-10-13T00:00:00Z “In a binary system such as ours, the republic is gravely threatened when the members of one of the two major political parties risk ouster-via-primary for insufficient loyalty to an authoritarian executive.” Right and Left React to Jeff Flake’s Denunciation of Trump 2017-10-25T04:00:00Z Such black holes should therefore become strongly concentrated at the Galactic Centre, regardless of whether they are isolated or part of binary systems. Bounteous black holes at the Galactic Centre 2018-04-15T04:00:00Z When they calculated the motions of stars in that area, they discovered a binary system that was in exactly the right position to create that shell nearly 600 years ago. Famous 600-Year-Old Nova Pinpointed in Modern Day 2017-08-31T04:00:00Z Pulsars also provided a way to study gravity in extreme situations, when, in 1974, astronomers found one orbiting a fellow neutron star in a binary system. Pulsars still dazzle after 50 years 2017-07-03T04:00:00Z You are able to take spectra of both stars in an eclipsing binary system. Astronomy 2016-10-13T00:00:00Z School districts have long sought to expand career pathways for high school graduates beyond the perceived binary system in place. Colorado Editorial Roundup 2016-10-05T04:00:00Z Of course, this includes only the close binary systems; there is probably a much larger population — perhaps as many as 10,000 — of isolated, and presently unobservable, black holes in the same volume. Bounteous black holes at the Galactic Centre 2018-04-15T04:00:00Z When two black holes or neutron stars in a binary system spiral towards each other, their massive size causes ripples in space-time known as gravitational waves. Revealing the unseen Universe : Nature : Nature Research 2016-09-27T04:00:00Z The government said the report focused on the binary system of the past but this was not what its plans intended to recreate. Grammar schools expansion 'could dumb them down' - BBC News 2016-09-22T04:00:00Z It too is a binary system, composed of a faint white dwarf orbiting a bluish-white, main-sequence star. Astronomy 2016-10-13T00:00:00Z “We do not want to see a return to the old binary system of good schools and bad schools,” she said. Theresa May, the prime minister prepared to risk it all 2016-09-17T04:00:00Z And in the second, on a shorter timescale, the supermassive black hole at the centre of the Galaxy, around which all binary systems in the region orbit, drives mergers. Bounteous black holes at the Galactic Centre 2018-04-15T04:00:00Z “It tells us, look: What shapes the planetary nebula is a binary system.” Dying gasps of paired stars sculpt galaxy’s colorful gas clouds 2016-09-16T04:00:00Z But as formats evolve and platforms shift, this binary system could fall by the wayside. For the VR generation, the differences between TV and movies may already be irrelevant 2016-05-20T04:00:00Z Astronomers have found pulsars in binary systems that are spinning at a rate of more than 500 times per second! Astronomy 2016-10-13T00:00:00Z In such a cluster, massive stars would sink towards the centre and, through complex interactions with lighter stars, form binary systems, possibly long after their transformation into black holes. The black-hole collision that reshaped physics 2016-03-22T04:00:00Z Basically it's a binary system -- America, or not America. Craig Ferguson bonus talk: on TV, reading, Trump, America and more 2016-02-24T05:00:00Z But a binary system with two black holes of around 30 solar masses is puzzling. Gravitational Waves Discovered: Top Scientists Respond 2016-02-11T05:00:00Z But he also discussed the different mechanical parts of "computers" using the decimal and binary systems. The Vocabularist: What's the root of the word computer? - BBC News 2016-02-01T05:00:00Z Indeed, some of the fast pulsars are observed to be part of binary systems, while others may be alone only because they have “fully consumed” their former partner stars through the mass transfer process. Astronomy 2016-10-13T00:00:00Z But how did these two black holes end up in a binary system? The black-hole collision that reshaped physics 2016-03-22T04:00:00Z The binary system is located in the southern constellation of Carina, a ship's keel, and outshines our own sun by 5 million times. 5 supersize stars found in other galaxies, comparable to our stellar heavyweight Eta Carinae 2016-01-06T05:00:00Z Some theorists even got answers that the binary system should gain, not lose, energy as a result of emitting gravitational waves! Gravitational Waves Discovered: Top Scientists Respond 2016-02-11T05:00:00Z The pair showed that a neutron star, now known as the Hulse-Taylor pulsar, was part of a binary system whose orbit was decaying at a rate consistent with it pumping out gravitational waves. Will this European satellite confirm Einstein’s last unproven idea? 2015-11-21T05:00:00Z And if you thought that a neutron star interacting with a “normal” star was unusual, there are also binary systems that consist of two neutron stars. Astronomy 2016-10-13T00:00:00Z Boole work, commonly referred to as Boolean algebra, went on to influence binary systems used in electrical circuits and computers. Mathematician George Boole Honored in New Google Doodle 2015-11-01T04:00:00Z And on its lower right will be the lead star in the constellation Canis Minor, Procyon, a binary system that sits just 11.4 light-years from Earth. This Week's Night Sky: The Elusive Glow of Zodiacal Lights 2015-09-07T04:00:00Z Not only is this remarkable discovery of gravitational waves an extraordinary breakthrough in physics, it is a very surprising glimpse of a massive black hole binary system, meaning two black holes that are merging together. Gravitational Waves Discovered: Top Scientists Respond 2016-02-11T05:00:00Z This binary system probably formed when a large object slammed into a proto-Pluto, in the early days of the Solar System. Pluto’s massive mountains hint at geological mysteries 2015-07-14T04:00:00Z Apart from the masses, how are binary systems with a neutron star different from binary systems with a white dwarf? Astronomy 2016-10-13T00:00:00Z With its huge moon Charon, Pluto also constitutes the Solar System’s only known binary system. Pluto fly-by: a graphical guide to the historic mission 2015-07-06T04:00:00Z First, the dying star isn’t alone: it’s in a binary system with another star, which is a pretty common occurrence. What We Can Learn From the Beautiful Death of a Star 2015-06-10T04:00:00Z Astrophysicists are divided on how exactly binary systems form. 'Tatooine Made Easy' 2015-04-02T04:00:00Z But it’s also possible for rocks of roughly equal size to be gravitationally locked together in a binary system. Near-miss Asteroid Has Its Own Moonlet 2015-01-28T05:00:00Z What observations or types of telescopes would you use to distinguish a binary system that includes a main-sequence star and a white dwarf star from one containing a main-sequence star and a neutron star? Astronomy 2016-10-13T00:00:00Z Stellar mass black holes are often found in binary systems where the other star is a white dwarf. The Week in Geek: Black hole edition 2014-11-02T04:00:00Z What’s more, think about the core concepts of Watson’s speech: it focused on a binary system of oppression, oppression of woman by man. Pitting Emma Watson and Beyoncé Against Each Other Is Anti-Feminist 2014-09-27T04:00:00Z But white dwarf binary systems are usually found in the light of a galaxy, not tens of thousands of parsecs away. Lonely Supernovae May Have Been Kicked Out Of Their Galaxies 2014-08-08T04:00:00Z Or, he says, when two white dwarfs in a compact binary system eventually merge and their combined mass reaches the Chandrasekhar limit. Odds Remain Against Earth Being Hit By Lethal Supernova 2014-06-30T04:00:00Z The last part of our prescription, then, is to look for a source of X-rays associated with the binary system. Astronomy 2016-10-13T00:00:00Z The story begins when the more massive star in the binary system starts to burn through the last of its fuel. Mysterious "Magnetar" Likely Formed with Help from Runaway Star 2014-05-14T04:00:00Z Some observations of Regulus suggest the object is not just one star, but two—that in fact a hidden white dwarf star orbits Regulus in a close binary system. Clouds Threaten Rare Chance to See Star `Wink' Over New York 2014-03-19T18:24:52Z In addition, like many stars, HR 5171A is in a binary system, meaning that it and another star orbit one another. Astronomers Discover The Largest Known Yellow Star 2014-03-13T04:15:00Z Luke Skywalker’s home planet of Tatooine – invented by George Lucas' for the Star Wars series – was envisioned to exist in this kind of binary system. 'Star Wars' Planets Migrate into Position around Stellar Pairs 2014-02-07T20:00:00Z The visible star in this binary system is spectral type O. Measurements of the Doppler shifts of the O star’s spectral lines show that it has an unseen companion. Astronomy 2016-10-13T00:00:00Z When such stars are found in a binary system such as WR 104, then dense high-velocity colliding stellar winds from the two stars sometimes leads to significant dust formation. Earth May Still Lie In Path Of Potential Gamma Ray Burst (GRB), Say Astronomers 2013-05-27T05:56:35Z Ia supernovae occur in binary systems where a white dwarf star orbits a companion star. The Countdown, Episode 19 - Voyager Hokey Pokey, Mini-Supernovae, Mercury Meteorite?, Planck's Map, Birth of Massive Stars 2013-04-06T00:15:03.040Z But unlike most binary systems, these two stars are so close together that they touch. Astronomers Discover The Largest Known Yellow Star 2014-03-13T04:15:00Z Not just any binary system will work, however. Extraterrestrial Life May be Common Around Binary Stars 2013-03-11T21:45:03.597Z A number of other binary systems also meet all the conditions for containing a black hole. Astronomy 2016-10-13T00:00:00Z Because most stars are part of a binary system, "this is not an uncommon occurrence," Kaib says. Earth-Sized Planets Are a Plentiful Bunch 2013-01-07T22:45:00Z Their model assumes that as two stars close together in a binary system whirl around each other, they interact with the gas in the cluster. Double Stars Succumb to Fatal Attraction 2012-09-25T21:45:00.217Z In a binary system called J0651, two white dwarfs circle each other very rapidly. White Dwarf Binary Stars Make Merger Plans 2012-09-17T19:15:21.343Z But it was only in 2011 that astronomers reported the first confirmed instance of a binary system with even a single planet. Body Double: Understanding the Astrophysics of a Newly-Discovered Multi-Planet Binary Star System 2012-09-11T12:45:00.180Z These curves plot the radial velocities of two stars in a spectroscopic binary system, showing how the stars alternately approach and recede from Earth. Astronomy 2016-10-13T00:00:00Z For example, computers use base 2, or the binary system. Why 167 Is a Happy Number Besides Being Scientific American`s Age 2012-08-27T17:15:00.343Z Originally discovered in 1964, this binary system was the first x-ray source that dynamical observations suggested might contain a black hole. [Multimedia] Cover Stories: Cygnus X-1—The Bigger Picture 2012-08-02T17:55:02.863Z This binary system of assigning wins and losses forces teams and fans alike to focus on a team’s win percentage and set aside the rest of the data. Off the Dribble: In the N.B.A., There Is a Message in Point Differentials 2012-04-17T16:48:17Z The large number of binary systems is quite remarkable. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Let us consider a hypothetical binary system in which the stars are very different in size, like those illustrated in Figure 18.11. Astronomy 2016-10-13T00:00:00Z The astronomers focused their attention on the binary system H1743–322, which is comprised of a star and a neighboring black hole. Astronomers Observe A Black Hole Firing A High Energy 'Bullet' 2012-01-11T06:22:05Z “The data and modeling described in these three papers at last provide a completely definitive description of this binary system.” New Data Provides A Complete Description Of A Black Hole 2011-11-19T16:12:56Z We also want to start studying the known Y dwarfs in more detail to determine more-precise temperature estimates, estimate their masses, determine if any of them are actually binary systems and so on. How Cold Is a Y Dwarf Star? Even You Are Warmer 2011-08-26T23:15:06.097Z At the same time their velocity of rotation increased until a large proportion of them broke up by fission into binary systems. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Called Sirius B, it forms a binary system with Sirius A, the brightest-appearing star in the sky. Astronomy 2016-10-13T00:00:00Z The black holes in a binary system, like this one, are tiny compared to the supermassive black holes found at the centers of galaxies. Astronomers Observe A Black Hole Firing A High Energy 'Bullet' 2012-01-11T06:22:05Z JR calls this the "binary system," and he insists it is a crucial difference between Market America and, say, Amway, where a distributor can have an unlimited number of nodes beneath him or her. Market America's American Dream Machine 2011-06-23T21:00:00Z The discovery of nebul�, of binary systems, of clusters of stars, of periodical stars, of varying and accelerated periods of such stars, all seem to point the other way. The Plurality of Worlds 2011-06-01T02:00:23.787Z Many such binary systems are now known, and the number is constantly increasing. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z If a visual binary system were to have two equal-mass stars, how would they be located relative to the center of the mass of the system? Astronomy 2016-10-13T00:00:00Z The family system is a combination of the solar and the binary systems. A New Atmosphere 2011-05-20T02:00:35.903Z All these three classes of binary systems are now known to be very numerous. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z By a process like this, Herschel reached his grand discovery of true binary systems, where one sun revolves about another. Sir William Herschel: His Life and Works There are nineteen in all and nearly half of them are binary systems. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Figure 18.7 shows the velocity of two stars in a spectroscopic binary system. Astronomy 2016-10-13T00:00:00Z The close pair is a binary system with a long period of revolution, estimated at about two hundred years. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers Sirius is also a binary system; but it is what is called a "visual" one, for its component stars may be seen separately in very large telescopes. Astronomy of To-day A Popular Introduction in Non-Technical Language The common centre of gravity of a binary system is situated on a line between both stars, and distant from each in inverse proportion to their respective masses. The Astronomy of Milton's 'Paradise Lost' I adhere to the conviction," he wrote later to Humboldt, "that Procyon and Sirius form real binary systems, consisting of a visible and an invisible star. A Popular History of Astronomy During the Nineteenth Century Fourth Edition These observations were made by adjusting a micrometer to a very powerful telescope, and were data sufficient for the determination of the orbit of the revolving star, should it be a binary system. Personal Recollections, from Early Life to Old Age, of Mary Somerville They form a binary system of unknown period. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers The spectroscope shows that the brighter of these stars is again a binary system of two huge suns, the components revolving around each other in a period of about twenty days. Astronomy of To-day A Popular Introduction in Non-Technical Language This planet was just a scientific curiosity; it was and is still the only planet of a binary system with a native population of sapient beings. Oomphel in the Sky A binary system of counting is shown in the following numerals:— One: uniuni. The Mafulu Mountain People of British New Guinea Two centuries ago the distinguished philosopher and mathematician, Leibnitz, proposed a binary system of numeration. The Number Concept Its Origin and Development It is not known that they constitute a binary system, because no certain evidence of motion has been obtained. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers A pairing of stars in this way, though often casually alluded to as a double star, is properly termed a "binary," or binary system. Astronomy of To-day A Popular Introduction in Non-Technical Language Binary ——— The base 2 number system in which only the digits 1 and 0 are used is called the binary system. The Online World If the orbit of a binary system lies edgewise toward us, then one star will hide the other each revolution, moving across it and appearing on the other side. Scientific American Supplement, No. 288, July 9, 1881 So we find parallax, proper motion, double stars, binary systems, variable stars, and new stars all bound together. History of Astronomy Now, for your purpose, I would recommend a batch of neat, but not over-close, binary systems, selected so as to have always one or the other on hand. Maria Mitchell: Life, Letters, and Journals It is a binary system, the component bodies revolving around their common centre of gravity in a period of about two hundred years. Astronomy of To-day A Popular Introduction in Non-Technical Language The binary system lets us express any number, if we have enough bits, as a combination of 1's and 0's. The Online World It took almost 300 years before hackers, trying to see if they could use the digital for music notation, discovered that images can be described in a binary system. The Civilization of Illiteracy I adhere to the conviction that Procyon and Sirius form real binary systems, consisting of a visible and an invisible star. History of Astronomy It is virtually certain that RR Centauri is a case of an eclipsing binary system, and that the two stars are close together. Darwin and Modern Science It is only in the case of binary systems that we can discover the masses of stars at all. Astronomy of To-day A Popular Introduction in Non-Technical Language Often three or four stars are found thus closely connected into gravitation systems; indeed, there are all gradations between binary systems and great clusters containing hundreds or even thousands of members. A History of Science — Volume 3 Now it became clear that some of them, at any rate, are true "binary systems," linked together presumably by gravitation and revolving about one another. A History of Science — Volume 3 |
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英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。