单词	magnetic pole
释义	magnetic pole noun 1 : either of two small regions which are located respectively in the polar areas of the northern and southern hemispheres and toward which a compass needle points from any direction throughout adjacent regions also : either of two comparable regions on a celestial body 2 : either of the poles of a magnet Example Sentences Recent Examples on the Web In the billion-year timeframe of Earth’s life, the last magnetic pole reversal 42,000 years ago is honestly not that far back. Caroline Delbert, Popular Mechanics, 13 June 2022 In the paper, published in the journal Science, experts say there is currently rapid movement of the north magnetic pole across the Northern Hemisphere -- which could signal another reversal is on the cards. Amy Woodyatt, CNN, 19 Feb. 2021 Researchers have speculated that the current weakening of the magnetic field is a sign that Earth is heading for an eminent pole reversal—in which the north and south magnetic poles switch places. Fox News, 22 May 2020 While on a sledge excursion, the young Ross became the first European to locate the planet’s north magnetic pole. National Geographic, 24 Jan. 2020 In recent years, Earth’s shifting magnetic poles have been picking up the pace. Jennifer Leman, Popular Mechanics, 7 Dec. 2019 Adjusting the current fed to each set can create similar magnetic poles facing each other in the stator and rotor. National Geographic, 27 Sep. 2019 During this stunningly chaotic time, detailed in a recent publication in Earth and Planetary Science Letters, the planet experienced 26 magnetic pole reversals every million years—more than five times the rate seen in the last 10 million years. National Geographic, 2 Oct. 2019 Lab setups are simple, with positive and negative magnetic poles that pull cells toward one end of a dish or the other. Sara Reardon, Science | AAAS, 14 Jan. 2020 See More Word History First Known Use 1701, in the meaning defined at sense 1 Kids Definition magnetic pole noun 1 : either of the poles of a magnet 2 : either of two small regions of the earth which are located near the north and south poles and toward which a compass needle points
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