http://mail2.nara-edu.ac.jp/~asait/2005_express/2005_express.htm http://megalodon.jp/?url=http://mail2.nara-edu.ac.jp/~asait/2005_express/2005_express.htm&date=20061128101450

physical damage charging damage radiation damage

http://na-inet.jp/weblog/archives/000389.html http://book.asahi.com/comic/TKY200601110213.html

http://www.propulsion.kuaero.kyoto-u.ac.jp/