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SavageMOA · May 25, 2008, 11:22 PM

I've heard of these before (my chemistry professor is retired Army), what exactly are they and how do they work?

May 25, 2008, 11:22 PM	#2
SavageMOA Senior Member Join Date: March 19, 2008 Posts: 368	I've heard of these before (my chemistry professor is retired Army), what exactly are they and how do they work?