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Mr. Clean magic trench eraser (slrpnk.net)
submitted 9 months ago* (last edited 9 months ago) by Track_Shovel@slrpnk.net to c/noncredibledefense@lemmy.world
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Sorry forgot to crop the photo - fixed

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[-] Mac@mander.xyz 12 points 9 months ago

Can someone calculate max theoretical thrust from firing these?

[-] L3mmyW1nks@lemmy.world 29 points 9 months ago* (last edited 9 months ago)

https://what-if.xkcd.com/21/

For an AK47 it'd be 57.2N, so probably a bit less times 88, totalling something below 5000N or so for the ejected bullets, plus 30% for gas n stuff.

I highly recommend the xkcd in any case.

this post was submitted on 25 Jan 2024
267 points (98.9% liked)

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