Date de publication : 26 mars 2011 14:08:01
Here is a video explaining the science of tsunamis and an article about the crisis in Japan...
http://www.history.com/topics/historys-worst-nuclear-disasters/videos#the-science-of-tsunamis: the science of tsunamis
http://www.timeforkids.com/TFK/kids/ns/article/0,28391,2060006,00.html: the crisis in Japan