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mdturnerphys
on Aug 4, 2021
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Testing quantum mechanics in space
Good question. They say that they need 10^-11 pascals. The pressure in low earth orbit is 10^-8 pascals [0], but the suggestion is to put it at a Langrange point (L1 or L2), where the pressure should be much below that.
[0]
https://en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)
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[0] https://en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)