Every day gravity is Newtonian, and gets more interesting at higher sampling rates
https://twitter.com/RichardKCollin2/status/1741046739237228715 Sensitive three axis gravimeters show that vector sun moon tidal signals are nearly perfectly Newtonian, only requiring three linear regressions (6 numbers) to lock a station to the sun and moon for position and orientation sensing. Many types now. https://twitter.com/RichardKCollin2/status/1693165581329985565 This is one month for the vertical component of the vectors signal.
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