Earth's magnetic poles probably won't flip within our lifetime

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	Earth's magnetic poles probably won't flip within our lifetime
	admin
	2019-08-07
发布年	2019
语种	英语
国家	国际
领域	地球科学
正文(英文)	By Ruby Prosser Scully Earth’s north and south poles may not flip so quickly G.GLATZMAIER, LOS ALAMOS NATIONAL LABORATORY/P.ROBERTS, UCLA/SCIENCE PHOTO LIBRARY We appear to be safe from a catastrophic reversal of the north and south magnetic poles, according to evidence showing that the last swap took a lot longer, and was a lot messier, than scientists thought. The magnetic field shields Earth from the sun’s harmful radiation and cosmic rays, so a sudden polarity reversal could affect our power and communications systems, as well as our health. But a new analysis of lava flows, ocean sediment and Antarctic ice cores found that … Continue reading Subscribe for unlimited digital access Subscribe now for unlimited access Digital Unlimited web access New Scientist app Videos of over 100 science talks available exclusively to subscribers SUBSCRIBE AND SAVE Print & digital Unlimited web access Weekly print edition New Scientist app Videos of over 100 science talks available exclusively to subscribers SUBSCRIBE Existing subscribers, please log in with your email address to link your account access. Paid annually by Credit Card Inclusive of applicable taxes (VAT)
URL	查看原文
来源平台	NewScientist
文献类型	新闻
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/136383
专题	地球科学
推荐引用方式 GB/T 7714	admin. Earth's magnetic poles probably won't flip within our lifetime. 2019.