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AndrewDabrowski's avatar

Thanks for your commentary.

So it seems Ludwig didn't actually derive the magnitude of the gravitomegnetic effect from GR, he made an (erroneous) assumption from which he inferred that the magnitude must be great enough. Is that correct?

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Tim Tyler's avatar

FWIW, pressure is not conventionally about momentum. Say you are sitting on a chair. The chair is under pressure, but it and you are both motionless - and so have no momentum. Pressure is defined in terms of force, not momentum.

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