http://www.stmary.ws/highschool/physics/home/animations3 /default.htm http://www.physicsclassroom.com/Class/ http://www.flickr.com/photos/isabelfotografie/page7/ http://www.bing.com/images/search?q=angle+of+incidence&F ORM=BIFD#focal=698642f006cbe01c3d956f4712d07689&furl =http%3A%2F%2Fsciencecity.oupchina.com.hk%2Fnpaw%2Fst udent%2Fglossary%2Fimg%2Fangle_of_incidence.jpg http://en.wikipedia.org/wiki/Reflection