Gravitational effects would propagate immediately if the Earth-Moon distance changed
the verdict
REFUTED
the evidence says no
refutedsupported
the weight of evidence
0 sources for · 2 against
Retrieved physical literature establishes that gravitational effects do not propagate instantaneously, but rather are limited by finite propagation speeds such as the speed of light.
On the origin of the anomalous precession of Mercury's perihelion
Action at distance in Newtonian physics is replaced by finite propagation speeds in classical post--Newtonian physics. As a result, the differential equations of motion in Newtonian physics are replaced by functional differential equations, where the delay associated with the finite propagation speed is taken into account. Newtonian equations of motion, with post--Newtonian corrections, are often used to approximate the functional differential equations. In ``On the origin of quantum mechanics'', preprint, physics/0505181, May 2005, a simple atomic model based on a functional differential equation which reproduces the quantized Bohr atomic model was presented. The unique assumption was that the electrodynamic interaction has a finite propagation speed. In ``On the origin of the gravitational quantization: The Titius--Bode Law'', preprint, physics/0507072, Jul 2005, a simple gravitational model based on a functional differential equation which gives a gravitational quantification and an explanation of the modified Titius--Bode law is described.
# Tidal forces are gravitational waves
Classical and Quantum Gravity. Published: 2021-01-14. Preprint. 1 citation.
## Authors
- Rituparno Goswami: h-index 28; 2,399 citations
- George Ellis: h-index 78; 35,376 citations
## Topics
- Cosmology and Gravitation Theories
- Pulsars and Gravitational Waves Research
- Black Holes and Theoretical Physics
## Funding
- Department of Science and Technology, Republic of South Africa
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# Tidal forces are gravitational waves
## Abstract
In this paper we show in a covariant and gauge invariant way that in general relativity, tidal forces are actually a hidden form of gravitational waves. This must be so because gravitational effects cannot occur faster than the speed of light. Any two body gravitating system, where the bodies are orbiting around each other, may generate negligible gravitational waves, but it is via these waves that non-negligible tidal forces (causing shape distortions) act on these bodies. Although the tidal forces are caused by the electric part of the Weyl tensor, we transparently show that some small time varying magnetic part of the Weyl tensor with non zero curl must be present in the system that mediates the ti
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