看到 checkin 在博文 2009 年美国 青年科学家总统奖 ( http://www.sciencenet.cn/m/user_content.aspx?id=243104 ) 的留言,让自己不知道如何是好,于是就给 Chun Ning Lau 发了一封电子邮件询问, Chun Ning 很快回复证实了她有华人背景。这 ...
CNN) -- On July 23, 1969, as Apollo 11 hurtled back towards Earth, there was a problem -- a problem only a kid could solve It sounds like something out of a movie, but that's what it came down to as Apollo 11 sped back towards Earth after landing on the moon in 1969. It was around 10:0 ...