Capitalizing on Mantell's enfeebled state, Owen set about systematically expunging Mantell's contributions from the record, renaming species that Mantell had named years before and claiming credit for their discovery for himself. Mantell continued to

发表于:2019-01-29 / 阅读(62) / 评论(0) 分类 万物简史

Supernovae are significant to us in one other decidedly central way. Without them we wouldn't be here. You will recall the cosmological conundrum with which we ended the first chapterthat the Big Bang created lots of light gases but no heavy elements

发表于:2019-01-29 / 阅读(60) / 评论(0) 分类 万物简史

Facebook COO雪莉桑德伯格(Sheryl Sandberg)的丈夫Dave Goldberg(戴夫-高德伯格)于5月3日因意外离世,时隔1个月时间,桑德伯格再次在Facebook上发表文章,表达自己对丈夫的思念。 桑德伯格感慨,过

发表于:2019-02-08 / 阅读(106) / 评论(0) 分类 阅读空间