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Old 11-15-2012, 03:32 PM   #9 (permalink)
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Join Date: Mar 2007
Location: Vancouver, BC, Canada

I am starting to think that the disc might just be a visual aid for discussion. It does not state in any of these articles that they actually fired a gun at the polymer layer:

Tiny Layered Materials Make Ultra-Light Bulletproof Armor | Popular Science

They simulated bullet impact at a macroscopic level using glass beads.
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