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  1. That’s super cool. It looks like an anime rocket ship or something with all those sparks and that purple line going straight up (which i just realized probably doesn’t actually show up in person, it’s probably because the camera didn’t have a uv filter or whatever it’s called).

  2. If I remember correctly from the welding school that I am currently in, that’s a physical reaction, because the oxyfuel flame heats the metal to its melting point and then the *high pressure air* basically forces the rest through to make the cut, which is why the flame was at the very edge until it all got that hot through the entire thickness of the metal.

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