For centuries we have dreamt of reaching the centre of the Earth. Now scientists are uncovering a bizarre and alien world that lies 4,000 miles beneath our feet, unlike anything we know on the surface. It is a planet buried within the planet we know, where storms rage within a sea of white-hot metal and a giant forest of crystals make up a metal core the size of the Moon. Horiz...
地心居然不是熔岩是晶体...被扫盲...另，地球磁极已经逆转过几百次了....又被扫盲...
介绍了地核、地磁场的一些研究成果。原来哈勃望远镜的故障是局部磁场异常引起的，长知识了
地心可能为发电机模型。主要讲地心的磁场
好神奇，地下也有类似于天气系统的风暴、像森林一样的晶体地心、地球磁场反转，惊呆我
那个霓虹科学家的龅牙太抢眼了。。