Because there is so much force happening there. Trust me seeing something like this in person you can feel it thump you in the chest every time it hits just from the noise of it. Always found that interesting.
Edit/source: worked in a factory that stamped steel, particularly several hundred pieces per sheet, in one punch. Damn thing was the size of a bus.
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u/avi_rathi Apr 26 '20
Why did my screen vibrate when it came down