| rocks gems and minerals Website on all the types of minerals , gems And rocks there is! of what they are composed , where they come from and more! very interresting if you like minerals. http://www.rocksgemsminerals.com |
| Laser Beam Shaping A website dedicated to sharing ideas and information on beam shaping using diffractive and geometrical optical techniques. Provides discussion forums, news, and conference links. http://www.beamloop.com/ |
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