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[-] Contentedness@lemmy.nz 14 points 1 month ago

I learned that the oxygen around the earth is about as thick as a coat of paint on a pool ball, relatively.

I'm not sure how accurate that is.

[-] Hagdos@lemmy.world 12 points 1 month ago

Space is about 100 km up, on a sphere that has a radius of 6000 km, so some 2% is air.

A pool ball has a radius of 30 mm roughly, so 2% of that is 0.6mm. Seems like a very thin coat of paint to me, but roughly correct.

[-] Reverendender@sh.itjust.works 3 points 1 month ago

A coat of paint is like 0.045mm thick

[-] Hagdos@lemmy.world 1 points 1 month ago

Not on the walls I've painted. I don't know about pool balls, but I'd imagine they need a solid layer of paint too, otherwise they'd flake in no time with the abuse they get.

[-] yuri@pawb.social 5 points 1 month ago

I was once told that if you scaled the earth and a glass marble to be the same size, the earth would have a much smoother surface.

this post was submitted on 26 Aug 2024
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