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Would suction cups work in space?
(sh.itjust.works)
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this post was submitted on 30 Apr 2024
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That's my prediction as well, but if the experiment is cheap to run, why not do so, and see of you learn something?
No reason at all not to. :)
That's what I was thinking too, you would need to have the pressure outside the cup to be higher, that's the force keeping the cup "sticking".
My prediction is that if you were to stick the cup while under atmospheric pressure, it would have a small amount of air inside ... making it unstick more easily after the outside gets depressurized, compared to the condition of having stuck the cup while in vacuum, although the difference would properly be negligible.