There is absolute rest (the initial frame of reference) in Newton's
所有跟贴·加跟贴·新语丝读书论坛
送交者: steven 于 2007-12-12, 21:01:17:
回答: 短江,我又糊涂了。 由 湘女 于 2007-12-12, 20:47:14:
world, but not in GR. Since there is no absolute initial frame, everything is moving. The curved time-space wraps and the objects move in this wrapped space essentially moving in orbits, hence, kinda back and forth.
所有跟贴:
加跟贴