anindefinitearticle
@anindefinitearticle@sh.itjust.works
I firmly believe that a “crustless ice mantle” meets the definition of an ocean.
- Comment on Anon's in trouble 3 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.
One side of that hole has ambient pressure of 1 atm. The other side has that plus water pressure totalling 1.5 atm.
A pressure is just an energy density. Multiply by the cross-sectional area of the interface to get the energy gradient across the interface. An energy gradient is a force. We don’t have a measure of the cross-sectional area of the hole, but if we expect a person to fit through let’s call it 1m^2.
50 kpa = 50 kJ/m^3, so total force felt across this opening is 50kN which is the equivalent weight of five metric tons.
I’d say this person is going to have a bad time with five metric tons pushing them towards that little hole.
- Comment on 13 years ago, indicted New York City Mayor Eric Adams made a weird as hell video about searching your teenager's room for drugs and guns. 6 months ago:
It’s the fourth amendment, Eric, not the first.