After his success making a fire vortex cannon, Kevin Kohler ups the ante with a homemade fire sword.
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The Backyard Scientist hit 2,000,000 subscribers in September 2016. According to the Scientist, he is going to make a compilation video featuring experiments for his subscribers and from his subscribers.
Submit videos to through facebook. It can be anything from a baking soda volcano to a tesla coil, whatever it is he always loves to see it.
See even more of the Backyard Scientist here: https://www.youtube.com/user/TheBackyardScientist
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