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Gravity is an attractive force that affects and is affected by all mass and - in general relativity - energy, pressure, and stress. Prefer newtonian-gravity or general-relativity if sensible.

2 votes
1 answer
2k views

Degree of Time Dilation At a Distance From the Sun where acceleration = g?

It is tempting for a GR newbie such as myself to think that anywhere that the gravity is equal to that of the earth's surface that time-dilation would be the same, i.e. dilation as a simple function of … I wonder if someone can calculate the following situation, which strikes me as the simplest 2nd case to compare with earth's surface: At the surface of the Sun, gravity is roughly 28 times that at the …
Jonathan Dunn's user avatar
0 votes

Gravitational distortion of an object's diameter, at a distance,

"The true diameters of the Sun and Earth are 4.1 km and 4.4 mm greater, respectively, than one would expect from applying Euclidean geometry (C = pi * d) to the observed surface of these bodies." - h …
Jonathan Dunn's user avatar