| 单词 | demagnetize |
| 例句 | For some travelers, it signals a new era of convenience: no more inadvertently demagnetizing your room key or hiding your wallet in your shoe at the pool. The Getaway: Just Tap Here: Technology and Travel 2013-06-06T21:49:27Z In the ensuing months, he began feeling more than a bit demagnetized. First a ‘Third Wheel,’ Then a Couple 2021-05-14T04:00:00Z Washington, like other urban centers that attract culture lovers, remains, because of the pandemic, largely demagnetized. Perspective | D.C. theater is taking cautious steps back to ‘live’ with plexiglass screens and plays on headphones 2021-05-04T04:00:00Z In an AGU presentation, Steele used computer simulations to show layers of alternating magnetic fields could essentially cancel out the net magnetic field of the basins—making them appear to be demagnetized. Mars had long-lived magnetic field, extending chances for life 2022-12-19T05:00:00Z What Kushner’s book really is, however, is a portrait of a man whose moral compass has been demagnetized. Review | Jared Kushner’s memoir is only inadvertently revealing 2022-08-26T04:00:00Z Conversely, a permanent magnet can be demagnetized by hard blows or by heating it in the absence of another magnet. College Physics for AP Courses 2015-08-12T00:00:00Z The geophysicists were able to determine what that paleointensity was by heating single crystals to demagnetize them, and then reheating the samples in the presence of a magnetic field to impart magnetization. Ancient Earth's Weakened Magnetic Field May Have Driven Mass Extinction 2019-02-15T05:00:00Z Metal objects must be demagnetized so they don't affect the instruments. This NASA spacecraft will get closer to the sun than anything ever before 2018-01-22T05:00:00Z "We had to demagnetize the building," she says, a painstaking process that required passing an electromagnet over every square meter of the walls. Weighing the universe's most elusive particle 2017-06-29T04:00:00Z They were randomly selected to wear four devices in a different order: a magnetic wrist strap, a very weakly magnetic strap, a demagnetized strap and a copper bracelet. A Scientific Lens on Copper 2017-01-23T05:00:00Z We carry around a piece of plastic with an easily demagnetized stripe, whose account number is all too easily hacked or stolen. How Mobile Payments Are Failing—and Credit Cards Are Getting Better 2015-01-27T05:00:00Z The researchers presented the animals with barrels containing either a magnetized neodymium block or a demagnetized block of identical shape and density. Dolphins May Use Magnetic Sense as GPS 2014-09-30T04:00:00Z Dolphins approached the device with shorter latency when it contained a strongly magnetized neodymium block compared to a control demagnetized block that was identical in form and density and therefore undistinguishable with echolocation. Dolphins are Attracted to Magnets, Says Study 2014-09-30T04:00:00Z I can’t carry hotel keycards in my right pocket, because I occasionally demagnetize them. Cyborg conversion incomplete: my life with finger implants 2014-07-31T04:00:00Z The beauty of this system is that there’s no magnetic stripe to get demagnetized by a phone in your pocket. Pogue's Posts: A Journey to the World of European Tech 2013-05-02T18:43:51Z Fu and colleagues progressively demagnetized samples of the meteorite using an alternating magnetic field or by heating. Vesta: The Mini-Planet That Could Magnetize 2012-10-11T22:19:31Z There is a certain maximum load current that the shunt dynamo is capable of supplying at constant voltage; beyond this, the voltage will decrease, the machine finally demagnetizing itself, and ceasing to generate current. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z Ort chose minerals in hearths because they become demagnetized when they heat up and realign when they cool. Volcanic Destruction? Not Always 2011-12-07T16:14:00Z He magnetized and demagnetized steel needles by passing the discharge from his Leyden jars through the needles. The Story of Great Inventions 2011-10-05T02:00:16.353Z On the other hand, a very thick bar very quickly demagnetizes itself, because no part of the metal is far removed from the action of the free poles. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z His sensation was that of one being demagnetized. She Buildeth Her House 2011-01-04T03:01:05.167Z Also tell him to have Davis rig up a demagnetizer large enough to demagnetize the motors of a transport plane and bring it down here to fix up General Merton's ship. The Great Drought For instance, it was long since discovered that an electro-magnet gives forth a decided sound when it is suddenly magnetized or demagnetized. Little Masterpieces of Science: Invention and Discovery Then it starts to lose its magnetism and that feeds back a counter-emf which increases the demagnetizing current until it's saturated with opposite polarity. Long Ago, Far Away It has already been explained that the ends or poles of a polar magnet exert a demagnetizing power upon the mass of the metal in the interior of the bar. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z The moment the current is cut off, the bar is demagnetized. Electricity for Boys I demagnetized it; now it runs all right. The Black Star Passes As soon, however, as the current through the wire ceases, the bar is again demagnetized. The Wonder Island Boys: The Mysteries of the Caverns We have grown more and more distorted and demagnetized from the natural needs of our nature. Women's Wild Oats Essays on the Re-fixing of Moral Standards Lodge devised a similar arrangement called a coherer, and E. Rutherford invented a magnetic detector depending on the power of electric oscillations to demagnetize iron or steel. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z The projectile passes through the first target, breaks the circuit, demagnetizes the magnet of the longer rod, and it begins to fall. Scientific American Supplement, No. 787, January 31, 1891 She seemed possessed of one of those assimilative intellects which extract by glances the substance from a book as the flash of lightning demagnetizes the lodestone. Brave Men and Women Their Struggles, Failures, And Triumphs As far back as 1837, the American, Page, discovered the curious fact that an iron bar, when magnetized and demagnetized at short intervals of time, emitted sounds due to the molecular disturbances in the mass. Edison, His Life and Inventions I fancied that the doctor struggled to demagnetize, so to speak, the look which she gave him. The Ear in the Wall A magnetic circuit composed of a long air path and a short iron path demagnetizes itself much more rapidly than one composed of a short air path and a long iron path. Scientific American Supplement, No. 787, January 31, 1891 An air gap in a magnetic circuit always tends to hasten demagnetizing. Scientific American Supplement, No. 787, January 31, 1891 In long pieces of iron the mutual action of the various parts tends to keep in them any magnetization that they may possess; hence they are less readily demagnetized. Scientific American Supplement, No. 787, January 31, 1891 |
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