Merlu@lemmy.ml to Asklemmy@lemmy.ml · edit-213 hours agoWhat would you do with a single use portal gun?message-squaremessage-square63fedilinkarrow-up144arrow-down11
arrow-up143arrow-down1message-squareWhat would you do with a single use portal gun?Merlu@lemmy.ml to Asklemmy@lemmy.ml · edit-213 hours agomessage-square63fedilink
minus-squareBennyInc@feddit.orglinkfedilinkarrow-up10·12 hours 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-squaregandalf_der_12te@discuss.tchncs.delinkfedilinkarrow-up3·8 hours 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.
minus-squarepebbles@sh.itjust.workslinkfedilinkEnglisharrow-up4·11 hours agoI’m pretty sure there is much more air. At least volume wise. Sphere volume goes up by radius cubed.
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].
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.
I’m pretty sure there is much more air. At least volume wise. Sphere volume goes up by radius cubed.