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Absolutely cool thanks! Just a question, do you assume that the 'lab' at x=0 has negligible mass, or does it not feature in the final analysis?
A Cosmic Tidal Force: Measuring CTF With Strain Gauge
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The discussion centers on measuring the cosmological tidal force (CTF) using a strain gauge in a lab setup designed to minimize inhomogeneity and reference frame changes. The proposed experiment involves two identical masses placed at cosmological distances, with cables attached to a lab to measure the force due to cosmic expansion. The calculated CTF is approximately 29 nano-Newtons per kilogram per billion light-years separation, indicating a very small force unless large masses are used. Participants debate the implications of space expanding in a lab and the effects of gravitational interactions, emphasizing that the setup's tension results from the dynamics of cosmic expansion rather than traditional tidal forces. The conversation concludes with considerations on the energy density of dark energy and the potential stress-energy of the cables affecting measurements.
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