- last post: 01.01.0001 12:00 AM PDT
At your school were not allowed to have styrofoam bacasue of some kid who's allergic to so that rules out solar system for me (Yea i got one too). If you got the money build a laser security system. all you need is one laser, a couple mirrors, a photodetector, and an apmlifier. Link: http://www.laserfx.com/Science/Science9.html
Scroll to the bottom and theres everything you need.
[Edited on 9/20/2004 3:42:24 PM]