Re:Venus is volcanically alive, new find shows
by _dain_ on Thursday March 16, 2023 @02:02PM
(#35185737)
Gravity I'll grant you, but heatsinks are not difficult technology, and Venus has its own problems with pressure. It's not the overall pressure you worry about; each component of the gas has its own partial pressure. The outside is poison and it's trying to get into the livable parts, and that partial pressure against the breathable air is of the same order of magnitude as breathable air against a vacuum. The engineering challenges are similar.
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Re:Venus is volcanically alive, new find shows
by shkkmo on Thursday March 16, 2023 @02:37PM
(#35186323)
> that partial pressure against the breathable air is of the same order of magnitude as breathable air against a vacuum. The engineering challenges are similar.
Those are very different engineering challenges. Separating similar pressure gas mixtures is question of porosity, but not force. Separating different pressures of the same gas mixture is not just a question of porosity, but you also need manage the forces created by the overall pressure differential.
Edit: If you take a helium balloon into space (or high enough in our atmosphere) it explodes rather than just slowly leaking and equalizing it's gas mixture with the atmosphere.