地球无疑是你最熟悉的天体,但你未必知道,地球上的水竟然比太阳还古老。地球对物体的引力会消失吗严格说来,地球对物体的引力永远不会消失。地球引力是一种遵循“平方反比定律”的力。简单地说,把一个物体放在原来两倍远的距离上,它将受到原来的1/4的引力。把它放在原来4倍远的距离上,它会受到原来 The earth is undoubtedly the most familiar celestial body, but you may not know that the earth’s water is still older than the sun. Will earth’s gravity disappear? Strictly speaking, the earth’s gravity on the object will never disappear. Earth’s gravitation is a force that follows the law of inverse square root. Put simply, placing an object two times as long ago as it would have been by the original 1/4 gravity. Put it on the original four times the distance, it will be subject to the original