Supersonic pingpong ball gun makes science class worthwhile2/5/2013
Even if you're not interested in the nerdy science, watching this pingpong ball shoot through a paddle using the supersonic pingpong gun makes it totally worth sitting through Dr. Mark French's Purdue University engineering class. If your eyes are drooping trying to follow the science, fast forward to 5:45 to witness the ultimate destruction and see why this vid has gone viral. Once you see it, we know you're totally ignoring that "do Not try this at home" warning and rewinding to take careful notes on how to make one yourself.
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What's your favorite home science experiment?