To the naked eye, someone slicing through steel using a high-temperature plasma torch just looks like a massive shower of sparks. But through the lens of a high-speed camera filming at 480 frames per second, the torch looks about as strong as melting butter as the torch easily slices through it.
It’s also a good reminder to stand a safe distance from someone using a plasma cutter on steel, because those drops you see being blasted away are actually molten metal that would be particularly unpleasant should they make contact with your skin. Neat! [YouTube]
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