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submitted 4 months ago by Early_To_Risa@sh.itjust.works to c/greentext@sh.itjust.works

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[-] victorz@lemmy.world 2 points 4 months ago

Let's convert to metric so we can tell.

15 ft is about 5 m.

Water pressure increases by 10,000 pa per meter (rhogh, rho=1000 kg/m^3, g~10m/s^2), so total pressure is 50 kpa, or 1/2 earth atmospheric pressure.

This is very interesting. I like unit conversions.

What I did was just take 21-14 psi, and then converted that to bar or atm. I got a number close to ½.

I was like, half an atm? Can't be that bad? I can handle 1 full mf atm literally all mf day mf.

But I guess that's different somehow? I just don't understand how yet. If anyone would care to go into it with me... 🙏

[-] weker01@sh.itjust.works 2 points 4 months ago

Remember a vacuum does not have suction it's the air that presses things under vacuum together. One atm is actually quite a lot but we can withstand that as it's pressing at us from all sides including inside.

See this example of how strong 1 atm can be

this post was submitted on 28 Dec 2024

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