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Is the gravitational constant really constant over our Universe?

One of the big problems with the gravitational constant is that its units are not dimensionless. And so one expects it to represent some physical quantity. What is that? Another problem is that ...
David's user avatar
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12 votes

Is the gravitational constant really constant over our Universe?

See also Do the laws of physics work everywhere in the universe? on the Physics SE. If the gravitational constant were not constant, then the laws of physics work differently elsewhere in the universe....
Allure's user avatar
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4 votes

Is the gravitational constant really constant over our Universe?

Within General Relativity (GR), the gravitational constant $G$ is postulated to be a fundamental constant having the same value over our Universe. Within the Brans-Dicke theory, which is a competitor ...
Michael_1812's user avatar
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