地球磁极变化的最激动人心一幕是“磁极倒转”事件。在地球演化史中,“磁极倒转”事件经常发生。如今,“磁极倒转”再次被媒体所关注。这,是灾难逼近,还是“杞人忧地”? 地球曾经多次发生过磁极倒转事件! 人们都知道,地球是个大磁场。然而,地球的磁场并非亘古不变,它的南北磁极曾经对换过位置,这就是所谓的“磁极倒转”。 The most exciting scene of changes in the Earth’s poles is the “pole reversal” event. In the history of the Earth’s evolution, “pole reversal” events often occur. Now, “pole reversal” again by the media attention. Is this a catastrophe approaching or a “disturbing one?” There have been many pole-reversal events on the Earth. People all know that the Earth is a big magnetic field. However, the Earth’s magnetic field is not permanent. Its north and south poles have been changed positions. This is called “pole reversal.”