Monday, October 9, 2023

Inertia inside an electric field: the Lorentz transformation of E_x

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Let us return to the problem of determining the acceleration of a test charge q near a moving charge Q. On September 9, 2023 we made a calcu...
Saturday, October 7, 2023

Momentum of a box full of bouncing particles

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We were wrong in our claim on August 25, 2023 that special relativity would break conservation of center of mass if rest masses exist. We as...
Thursday, September 28, 2023

The standard Big Bang hypothesis is probably too bold an assumption: a tower of turtles

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The Big Bang hypothesis was born when Alexander Friedmann in 1922 found a very nice and simple solution for the Einstein field equations. Th...
Tuesday, September 26, 2023

Gravitating mass, inertia, and centripetal acceleration

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In general relativity, the gravity potential steepens at low radii r, relative to the newtonian potential.                        ●  M      ...
Sunday, September 24, 2023

Flaws in general relativity: a summary

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UPDATE November 13, 2023: The question of Lorentz covariance of general relativity is still unclear. On November 7, 2023 we tentatively prov...
Saturday, September 23, 2023

Private interactions and the metric give contradictory results

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In our previous blog post we claimed that "private interactions" between the test mass m and the parts of a mass flow can give a d...
Wednesday, September 20, 2023

Gravity of an accelerating mass M

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Now that we have gained a lot of experience about inertia, metrics, and the geodesic equation in the past two months, it is time to revisit ...