哥伦比亚大学拉蒙杜赫地球观察站的地震学家今年7月17日在纽约宣布:地球内核是一个自由旋转的球体。他们还发现地球的内核球体比地球的其它部分旋转得快,每400年左右形成一个重叠周期。在宇宙中,从未发现其它星 Seismologists at the Earth Observation Station at Lamonthuch, Columbia University, announced in New York on July 17 this year that the Earth’s core is a freely rotating sphere. They also found that the Earth’s inner sphere spins more rapidly than the rest of the Earth, forming an overlap cycle every 400 years or so. In the universe, no other stars have been found