When_North_Goes_South

简述

自然科学类纪录片，CBC 频道 2010 年出品，是 CBC The Nature of Things 系列其中之一。

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影片原始规格:

• 　中文片名　：
• 　中文系列名：
• 　英文片名　：When North Goes South
• 　英文系列名：CBC The Nature of Things
• 　电视台　　：CBC
• 　地区　　　：加拿大
• 　语言　　　：英语
• 　时长　　　：44 min
• 　版本　　　：TV
• 　发行时间　：2010

影片内容介绍

剧情简介

The earth has two North poles, the geographic and the magnetic. The magnetic pole is the one that attracts the needles of our compasses. It's always moving, but could it be about to flip? What will be the impact? Paleomagnetism has taught us that the magnetic pole flips regularly, going from north to south and vice versa, once every 250,000 years on average. However, the last inversion occurred 780,000 years ago! Are we on the eve of such a major event? When North Goes South follows Canadian geophysicist Larry Newitt and French geologist Jean-Jacques Orgeval as they meet astronauts, marine biologists, paleo and archeomagneticians, in an attempt to understand, measure and explain the consequences of a pole inversion.

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Category:片名 Category:CBC Category:CBC The Nature of Things Category:2010 Category:3. 自然科学类 Category:3.5 地球科学 Category:3.51 地质 Category:缺翻译