way 2 students
Wednesday, October 20, 2010
http://www.google.co.in/url?sa=t&source=web&cd=4&sqi=2&ved=0CCUQFjAD&url=http%3A%2F%2Fscience.howstuffworks.com%2Flaser-weapon.htm%2Fprintable&ei=e9e-TJqxLsmycMbs0O8N&usg=AFQjCNEwx1Ny6M_5cOPcJeXeVfywvhoTrw&sig2=VliewDkOM9hKCoZALVG9kw
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