Sotheearthisspinningfastbecausethereservoirshaveredistributedthewaterclosetoit’saxis.Andbecausetheearthwasspinningfast,since1950thelengthofdayhasdecreasedbydot8millionofsecond.Iknowthatdoesn’tsoundlikemuchbutsignificantinthatthisisthefirsttimethathumanbeingseverhadmiserableaffectontheearthmotion.我猜可能是0.0.....8秒的意思
你好。应该是:dot8millionofasecond=0.0000008秒。=8millionthofasecond翻译:八百万分之一秒又如:Amicrosecondisamillionthofasecond.Amicrosecondisdotamillionofasecond.1微秒就是一百万分之一秒。