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Your search keyword '"TIME dilation"' showing total 2 results
Start Over Descriptor "TIME dilation" Topic deflection (light)
2 results on '"TIME dilation"'

1. Gravity between Newton and Einstein.

Author

Hansen, Dennis, Hartong, Jelle, and Obers, Niels A.

Subjects
*TIME dilation, *NEWTON'S law of gravitation, *GRAVITY, *DEFLECTION (Light), *DEFLECTION (Mechanics), *GENERAL relativity (Physics), *SPEED of light, *REDSHIFT
Abstract

Statements about relativistic effects are often subtle. In this essay we will demonstrate that the three classical tests of general relativity, namely perihelion precession, deflection of light and gravitational redshift, are passed perfectly by an extension of Newtonian gravity that includes gravitational time dilation effects while retaining a non-relativistic causal structure. This non-relativistic gravity theory arises from a covariant large speed of light expansion of Einstein's theory of gravity that does not assume weak fields and which admits an action principle. [ABSTRACT FROM AUTHOR]

Published
2019
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2. Snell's law for the Schwarzschild black hole.

Author

Zheng, X. H. and Zheng, J. X.

Subjects
*TIME dilation, *SCHWARZSCHILD metric, *DEFLECTION (Light), *GRAVITATIONAL fields
Abstract

The Wheeler equation, for electromagnetic disturbances in a gravitational field, was found by Fiziev to have exact solutions both above and below the event horizon, in the form of waves propagating both inwardly and outwardly. This observation can be interpreted and verified from the optical point of view, entirely on the basis of the Schwarzschild metric for length contraction and time dilation, in order to derive a differential version of Snell's law for the Schwarzschild black hole. It reveals interesting physics, including the correct amount of light deflection by the Sun, internal and external Oppenheimer-Snyder cones of the black hole, properties of its phonon sphere and the conclusion that light rays are kept below the horizon by length contraction and time dilation rather than deflection. [ABSTRACT FROM AUTHOR]

Published
2020
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