Deadly Donuts of Fire
Season 1 • Episode 8
Kevin & Grant turn a blast of air into a massive ring of fire when they build a vortex cannon. They use magnets, superconductors, & quantum physics to send a levitating racer around a track. And make a frosty bulletproof glass mug to hold their beer.
42 min|TV-PG|Premiered 06/25/2015
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