| 单词 | magnetic compass |
| 例句 | Many Eurasian societies developed large sailing ships, some of them capable of sailing against the wind and crossing the ocean, equipped with sextants, magnetic compasses, sternpost rudders, and cannons. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z But the insects do just fine on very cloudy days, leading to suspicions that they also use a magnetic compass, as migratory birds and sea turtles do. Monarch butterflies navigate to Mexico with an internal magnetic compass, scientists say The magnetic compass also came to Europe in the fifteenth century, making its way from China where it was guiding ships by 1100 CE. World History: from 1400 2022-12-14T00:00:00Z The team planned to tag humpbacks with custom-built instruments containing pressure sensors, accelerometers, magnetic compasses and hydrophones that record their underwater behavior, along with a radio transmitter to enable tracking. No One Knows How the Biggest Animals on Earth—Baleen Whales—Find Their Food 2023-03-14T04:00:00Z We know that birds are capable of calibrating their magnetic compass with information from the sun. Readers Respond to the April 2022 Issue 2022-08-01T04:00:00Z But the inner workings of their magnetic compass have proved harder to understand. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z Centuries earlier, the Chinese invented the magnetic compass. myWorld: Building Our Country 2012-01-01T00:00:00Z Chinese advances in sailing technology, including use of the magnetic compass, made it possible for sea trade to expand. World History: Patterns of Interaction 2012-01-01T00:00:00Z Just as you might reach for a magnetic compass to find which way is north or south, birds are thought to have an in-built "living compass". Clues to how birds migrate using Earth's magnetic field 2021-06-23T04:00:00Z In response to Alexander: Tracking devices usually employ frequencies well beyond 100 megahertz, which are very unlikely to affect the birds' magnetic compass. Readers Respond to the April 2022 Issue 2022-08-01T04:00:00Z Last, even though songbirds fly at night under the dim light of the stars, their magnetic compass is light-dependent, hinting at a link between vision and magnetic sensing. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z The magnetic compass, gunpowder, the printing press, the chronometer, the cotton gin, the steam engine and the water wheel are among the many examples. Democratized Information Is Transforming Society 2020-08-24T04:00:00Z Explorers were also able to more accurately track direction by using a magnetic compass, a Chinese invention. World History: Patterns of Interaction 2012-01-01T00:00:00Z Alongside GPS, navigational systems used by satellites, aircraft, ships and other vehicles rely on magnetic compasses to ensure they’re moving in the correct direction. The North Pole’s mysterious journey across the Arctic 2019-02-04T05:00:00Z Other studies suggested some moths used a magnetic compass. Magnetic Sense Helps Billions of Moths on an Australian Migration 2018-06-21T04:00:00Z Given that the birds’ magnetic compass is light-dependent, a prediction of Schulten’s hypothesis is that their eyes play a part in the magnetic sensory system. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z Before Google Maps and GPS, before knowledge of magnetic compasses traveled from China to Europe, Viking sailors journeyed across the North Atlantic. Vikings may have used crystals to navigate across the Atlantic 2018-04-04T04:00:00Z Other important inventions of this period include porcelain, the mechanical clock, paper money, and the use of the magnetic compass for sailing. World History: Patterns of Interaction 2012-01-01T00:00:00Z That change of address cannot be ignored, given that magnetic compasses still underpin modern navigation, from the systems used by civilian and military airplanes to those that orient your iPhone. The North Pole’s mysterious journey across the Arctic 2019-02-04T05:00:00Z He does not understand why the a wave signal occurred with up-down and counterclockwise changes, but not the opposite, although he takes it as a sign of the polarity of the human magnetic compass. Maverick scientist thinks he has discovered a magnetic sixth sense in humans 2016-06-23T04:00:00Z From experiments such as these, it is clear that the magnetic compass sensors are located in the birds’ retinas. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z Other studies have suggested that eels possess magnetic compasses that allow them to orient themselves. Closing In on Where Eels Go to Connect 2015-12-07T05:00:00Z But then, so did the one that birds’ magnetic compasses rely on quantum entanglement. Flight risk 2014-11-13T05:00:00Z But the insects do just fine on very cloudy days, leading to suspicions they also use a magnetic compass, like migratory birds and sea turtles. Monarch butterflies may have magnetic compass 2014-06-24T04:00:00Z Interference from electronics and AM radio signals can disrupt the internal magnetic compasses of migratory birds, researchers report today in Nature1. Electronics' noise disorients migratory birds 2014-05-06T04:00:00Z Their work predicted that a weak radio-frequency electromagnetic field, fluctuating with the same frequencies as the “singlet-triplet waltz,” might interfere with the birds’ ability to use their magnetic compass. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z Suspecting that electromagnetic signals were confounding the robins’ magnetic compasses, the researchers moved them to electrically grounded, aluminum-screened huts that blocked noise between 50 kHz and 5 MHz. Observatory: Radio Signals Skew Birds’ Internal Navigation 2014-05-12T19:16:23Z Otherwise, the electromagnetic waves disrupted the birds’ internal magnetic compasses, he says. Birds Are Getting Lost Because of Our Gadgets, Claims Study 2014-05-09T09:39:52Z Scientists do not yet understand how a bird's magnetic compass works, but there is some evidence that they use the quantum phenomenon of electron spin to navigate. 'Electric noise disorientates birds' 2014-05-07T23:27:31Z “It’s significant, because we found a very clear, repeatable effect of electromagnetic noise made by electrical equipment that prevents a bird, in this case a European robin, from using its magnetic compass,” Mouritsen said. Electromagnetic ‘noise’ can disrupt migratory birds’ navigation, study says 2014-05-07T22:42:44Z When caged, these birds usually use their magnetic compass to instinctively orient themselves in the direction in which they would fly in the wild. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z Interference from electronics and AM radio signals can disrupt the internal magnetic compasses of migratory birds, researchers report today in . Noise from Our Electronics and Radio Signals Disorients Migratory Birds 2014-05-07T19:42:00Z It is the first evidence that snakes may share a similar magnetic compass to other reptiles, such as sea turtles. Giant snakes have 'homing instinct' 2014-03-20T00:08:47Z "A very small perturbation of these electron spins would actually prevent the birds from using their magnetic compass," Prof Mouritsen said. 'Electric noise disorientates birds' 2014-05-07T23:27:31Z Magnetic north is the direction magnetic compasses point to. Should walkers worry about moving north? 2014-01-23T01:50:10Z Mouritsen found that European Robins tested in wooden huts on his university’s campus were unable to orient using their magnetic compass. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z It is fitted with a motion sensor, a camera, an altimeter, a magnetic compass and a micro-controller processor. Insect-like drone is 'crash happy' 2013-10-31T14:20:46Z But because magnetic compasses do not work in the far north, paper maps were rarely used for navigation in the past. An Inuit Village, Too Remote for Cars, Gets Street View 2012-08-23T01:34:11Z It is thought that a built-in magnetic compass, which senses the Earth's magnetic field, helps them to find their way. 'Electric noise disorientates birds' 2014-05-07T23:27:31Z Many persons do not realize that the place to which constantly points the north end of the needle of the magnetic compass is not the north geographic pole. True Tales of Arctic Heroism in the New World 2012-03-13T02:00:24.640Z Many questions about the birds’ magnetic compass remain, including whether the magnetic field effects on robin Cry4a observed in vitro also exist in vivo. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z His distances were estimated, and the general directions were doubtless taken with a magnetic compass, while observations for latitude were impossible. A Journey from Prince of Wales's Fort in Hudson's Bay to the Northern Ocean in the Years 1769, 1770, 1771, 1772 New Edition with Introduction, Notes, and Illustrations 2011-12-26T03:00:13.520Z But in addition to these inherent faults there is a new source of error in the magnetic compass which man has introduced himself by making his ships of iron instead of wood. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z They sailed as far as America without the aid of magnetic compasses, which was no mean feat. Viking navigation: Sunstruck 2011-11-02T18:18:03Z He was using a magnetic compass, which is a small magnetic needle balanced on a steel point. The Story of Great Inventions 2011-10-05T02:00:16.353Z We also want to see whether migratory birds with genetically suppressed Cry4a production are prevented from orienting using their magnetic compass. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z The way to the south—north by the magnetic compass—was also open. The Ice Pilot 2011-03-09T03:00:48.433Z The magnetic compass has been for ages the mariner's guide over the trackless waters. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z This is much more accurate than a magnetic compass, and it keeps the ship on its course. Famous Flyers And Their Famous Flights 2010-12-25T03:00:15.953Z The magnetic compass is not reliable in a submarine with a hull made of steel. The Story of Great Inventions 2011-10-05T02:00:16.353Z "Our magnetic compasses are working again, Captain," she said quietly. The Golden Amazons of Venus The ship was heading due east by the meridian, or north by magnetic compass, and the true Pole was being thrown over the ship's port waist like a sinister shadow. The Ice Pilot 2011-03-09T03:00:48.433Z Thus we have testimony to the importance of these little vagaries on the part of the magnetic compass. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z Fighting his way through the tangled shrubbery, he kept his eyes constantly on the needle of the magnetic compass he had wrenched from the direction finder. Astounding Stories, March, 1931 HE histories of the mechanical clock and the magnetic compass must be accounted amongst the most tortured of all our efforts to understand the origins of man's important inventions. On the Origin of Clockwork, Perpetual Motion Devices, and the Compass Lay a magnetic compass flat on the table. Common Science This course, by magnetic compass, would bring the ship broadside of Siberia and into the wide mouth of the Gulf of Anadir. The Ice Pilot 2011-03-09T03:00:48.433Z In two important discoveries they long preceded Europe; namely, that of the magnetic compass and the use of gunpowder. Foot-prints of Travel or, Journeyings in Many Lands An arc of the horizon, intercepted between the point of the sun's rising and the east point of the magnetic compass. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. It is a curious mixture, all the more so because, tangled inextricably in it, we shall find the most important and earliest references to the use of the magnetic compass in the West. On the Origin of Clockwork, Perpetual Motion Devices, and the Compass And there's a magnetic compass I picked up on George the Fourth Bridge. The Judge The needle of a magnetic compass always points north. Quiet Talks with World Winners In addition to these I had secreted a prismatic and magnetic compass, a boiling point and aneroid thermometer, and a plane-table which I had constructed for the occasion. Memoir of William Watts McNair The magnetic compass enabled seamen to set their course when the sun and stars could not be seen. A Brief History of the United States It seems that in revising the histories of clockwork and the magnetic compass, these considerations of perpetual motion devices may provide some much needed evidence. On the Origin of Clockwork, Perpetual Motion Devices, and the Compass In that interesting work, Goodrich's "Life of Columbus," we find a curious history of the magnetic compass prior to that time, from which we collate the following points: Atlantis : the antediluvian world A few years after he had settled in England, he published an important paper on the variation of the magnetic compass, for so the departure of the needle from the true north is termed. Great Astronomers "The variation of the magnetic compass," said Goodloe, "from the true meridian." Options The elusive history of the magnetic compass has many points in common with that of the mechanical clock. On the Origin of Clockwork, Perpetual Motion Devices, and the Compass We shall now attempt to show that the history of the magnetic compass might provide a quite independent argument in favour of the hypothesis that there was a 'stimulus' transmission. On the Origin of Clockwork, Perpetual Motion Devices, and the Compass Could they have done this without the magnetic compass? Atlantis : the antediluvian world The point of this paper is that such a complex exists, cutting across the histories of the clock, the various types of astronomical machines, and the magnetic compass, and including the origin of "self-moving wheels." On the Origin of Clockwork, Perpetual Motion Devices, and the Compass |
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