【科學月刊】地球磁場正在反轉？:Realtime－線上遊戲排行榜2013/2014,進擊的巨人線上看,candy crush saga外掛,正妹寫真三圍

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【科學月刊】地球磁場正在反轉？

Sep 3rd 2014, 01:44

本內容由科學月刊提供

地表上有些礦石可以記錄地球磁場的方向，科學家發現地磁已在過去的45億年歷史中，已反轉了數百次，平均每25萬年反轉一次。不過，離上次地磁反轉已過78萬年。

地磁反轉現象恐怕或多或少會影響到電信通訊系統。歐洲太空組織發射的「Swarm」人造衛星偵測到地球磁場正在衰減……點此閱讀全文
（科學月刊／整理報導）

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