XiveTV Documentaries---地球磁暴

XiveTV Documentaries---地球磁暴
發佈日期：2013年4月23日
Uploaded under license from DRG. Generated deep within the Earth's molten core, the magnetic field protects our planet from deadly radiation from space. Yet scientists have discovered that it is weakening. Could our world lose its vital magnetic shield, and what will happen if we do?
深地球熔融芯内产生的磁场可保护地球从空间致命的辐射。然而，科学家们发现，它正在减弱。难道我们的世界失去了其重要的磁屏蔽，如果我们做什么，会发生什么？