2010-02-02 対称性の破れ http://www.google.co.jp/search?rlz=1C1GGLS_jaJP291JP303&aq=0&oq=%E5%AF%BE%E8%B1%A1%E6%80%A7%E3%81%AE&sourceid=chrome&ie=UTF-8&q=%E5%AF%BE%E7%A7%B0%E6%80%A7%E3%81%AE%E7%A0%B4%E3%82%8C