Also (mentioned by Tom), this elastic-powered supersonic trebuchet is an excellent video: https://www.youtube.com/watch?v=gdXOS-B0Bus

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genewitch 2 hours ago | parent | next [-]

the "shot you've been waiting for" was sort of anticlimactic, but the two plywood arm shots after show what it actually sounds like. I think the grass and tree dulled the sound a lot on the metal arm.

I actually have a camera that can shoot that at high speed (1200fps), but i'm sure other people have better cameras these days, mine has very low resolution.

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bookofjoe 2 hours ago | parent [-]

Scientific research systems like the SCARF achieve 156.3 trillion fps but at greatly reduced spatial resolutions.

	▲	red_admiral an hour ago \| parent [-]
		Is that the "nuclear potato cannon" one?

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jijijijij 26 minutes ago | parent | prev [-]

That device is so much more scary! Both really demonstrate the ridiculous amount of energy stored in a pinch of gun powder. And I presume gun powder is quite inefficient at driving the projectile, too.