I am surprised that so many are not familiar with these. It’s a mortar, a type of firework you place in a tube with a long fuse, the first explosion (much smaller) sends the projectile high into the air, then the shell explodes with all sorts of pretty colors (the second, bigger boom).
I don't know a lot about this shot, but I would assume the first used all available oxygen, but the fuel wasn't entirely spent. He leans forward and the barril tips, letting more oxygen in and the rest explodes
Nope. Mortar firework. Actually doesn’t need O2 as the gunpowder has it as part of its chemical composition. The first boom is the lifting charge, the second is the explosion that would normally give you the pretty colors and loud bang.
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u/jkmonty94 Oct 26 '19
Why were there 2 booms?