14 votes

Gravitational forces

The centripetal acceleration from rotation is not that hard to calculate. It's pretty standard in engineering, usually for working out the forces on things that are spinning very fast, like propellers....
Darth Pseudonym's user avatar
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
  • 4,544
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
  • 1,416
2 votes

Gravitational forces

As this could be a flat-earth argument you will probably not "win" however much you argue. I find that at times a different approach works. I talk about models. In physical sciences we ...
ghellquist's user avatar

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