Summary
We present some general reasonings using the mass-energy equivalence and Weber’s force law for gravitation to show that the weight of a body should increase with its temperature. The two approaches predict a fractional change of weight or, equivalently, of the gravitational constantG, of one part in 1014 per degree.
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Assis, A.K.T., Clemente, R.A. The influence of temperature on gravitation. Nuov Cim B 108, 713–716 (1993). https://doi.org/10.1007/BF02827005
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DOI: https://doi.org/10.1007/BF02827005