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Sigurthr, lots of great info. The last two days I have been learning how much I don't know. You would think after graduating with a degree in physics that you would be one of the people with a better understanding, but I've found out that there are so many parts of science that tie into lazer...

HaHaHa, thanks Jerry. After reading up on all of the reviews and different forums in the last 24 hours, that seems like it would be the case. Thanks for being generous!

Thanks for all of the quick replies guys. I work not too far from St. Louis. they have cut many teachers due to budgets but we have a special grant to get things for our classrooms, and so far this year I havn't even touched it. we are doing experiments showing the differents in different...

I have a HUGE BUDGET for my classroom. So eye safety is not a problem. there are several other teachers that are interested in getting involved. And just like you said, it is extremely dangerous. this will be for lab demonstration only. I also work with a friend who is a college...

Hello gentlemen, My name is Adam and i'm a highschool physics teacher in the mid-west portion of the US. I'm getting ready to start teaching a unit on optics in the late spring and I stumbled upon this forum. After reading posts and jumping around to different websites lastnight I figured...