Monthly Archives: December 2010

国际空间站宇航员太空拍到北京天津夜景图

http://earthobservatory.nasa.gov/IOTD/view.php?id=48076&src=imgrss http://news.sciencenet.cn/htmlnews/2010/12/242100.shtm 北京 – 廊坊 – 天津 另附一则:夜宿清华旁听北大 大一新生退学只为求学京城名校 Advertisements

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Seven stages of ignorance

From: Enkin M. The seven stages of ignorance. Birth 2008;35:169–70   First stage: Innocence. You know you don’t know, but you’re sure you can learn… Second stage: The facts. You know you still don’t know, but facts are facts. Third … Continue reading

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