送交者: cornbug 于 2017-04-06, 07:56:07:
回答: 地球自转轴一成不变吗?经纬是跟居自转轴来的? 由 cornbug 于 2017-04-06, 06:26:36:
The verb to nutate was used by MIT physicist Peter Fisher on the television show Late Night with Conan O'Brien on February 8, 2008. Fisher used the term to describe the motion of a spinning ring as it began to slow down and wobble.