Metaphysical Thoughts - Making Quantum Mechanics Logical
August 28, 2025: The anomalous magnetic moment of the electron – The physics blog of Heikki Tuuri.
Saturday, June 1, 2024
Gravitomagnetism and Gauss's law
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Edward M. Purcell calculated the energy of an electromagnetic wave from a retardation rule and the principle that Gauss's law must hold ...
Friday, May 31, 2024
Cosmological models: is there any solution for the Einstein equations?
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FLRW models typically assume a perfectly uniform mass density ρ and pressure p throughout an expanding, spatially finite universe. https://e...
Wednesday, May 29, 2024
Changing the pressure inside a sphere: a new analysis why Einstein equations fail
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On November 5, 2023 we gave a tentative proof that the Einstein equations do not have any solution if we suddenly change the pressure inside...
Sunday, May 26, 2024
The error in the Oppenheimer-Snyder collapse 1939
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In this blog we have been suspicious of the Oppenheimer-Snyder collapse paper (1939): https://journals.aps.org/pr/abstract/10.1103/PhysRev.5...
Tuesday, May 21, 2024
Lability of the Einstein-Hilbert action
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We finally found the correct interpretatiom for the Einstein-Hilbert action, and realized that a variation of the metric δg always has to be...
Friday, May 17, 2024
New lagrangian for gravity
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UPDATE May 21, 2024: The Einstein-Hilbert action seems to work correctly if we define the matter lagrangian as "kinetic energy - potent...
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