Merlu@lemmy.ml to Asklemmy@lemmy.ml · edit-22 days agoWhat would you do with a single use portal gun?message-squaremessage-square96fedilinkarrow-up165arrow-down12
arrow-up163arrow-down1message-squareWhat would you do with a single use portal gun?Merlu@lemmy.ml to Asklemmy@lemmy.ml · edit-22 days agomessage-square96fedilink
minus-squareBennyInc@feddit.orglinkfedilinkarrow-up12·2 days agoI remember that video, but I‘m not sure it is comparable — air might flow faster than water [citation needed] and there might be less of it [citation needed].
minus-squarepebbles@sh.itjust.workslinkfedilinkEnglisharrow-up8·2 days agoI’m pretty sure there is much more air. At least volume wise. Sphere volume goes up by radius cubed.
minus-squaregandalf_der_12te@discuss.tchncs.delinkfedilinkarrow-up4·2 days agothere’s more water than air (mass-wise). Above you, atmosphere scale height is 8 km, with a density of 1.25 kg / m³. That makes 10^4 kg of air above your head per m² surface area. To get the same mass of water per surface area, it would only have to be about 10 m deep. But the ocean is kilometers deep in most places.
I remember that video, but I‘m not sure it is comparable — air might flow faster than water [citation needed] and there might be less of it [citation needed].
I’m pretty sure there is much more air. At least volume wise. Sphere volume goes up by radius cubed.
there’s more water than air (mass-wise).
Above you, atmosphere scale height is 8 km, with a density of 1.25 kg / m³.
That makes 10^4 kg of air above your head per m² surface area.
To get the same mass of water per surface area, it would only have to be about 10 m deep. But the ocean is kilometers deep in most places.