Abstract
BLACKETT‘S formula1 involving a relation between mechanical and electromagnetic quantities seems to indicate a new kind of connexion between gravitation and electromagnetism. This appears more distinctly in Wilson‘s relation : where the charge density σ is associated with the mass density ρ by the Newtonian gravitational constant K. There is no room in Newtonian theory for an explanation of (1). The situation is better in the relativistic theory of gravitation.
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References
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MARIANI, J. Magnetism of Celestial Bodies and Gravitation. Nature 162, 612–613 (1948). https://doi.org/10.1038/162612a0
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DOI: https://doi.org/10.1038/162612a0
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