摘要: Scientists have subjected Albert Einstein's famous theory of gravity to its toughest real-world test so far岸and it has prevailed.Einstein's general theory of relativity states that objects with mass cause a curvature in space-time, which we perceive as gravity. Space-time, according to Einst 阅读全文
posted @ 2013-04-29 23:38 微雪 阅读(179) 评论(0) 推荐(0)