Questions tagged [gravity]

For questions about the universal accelerative force between all objects.

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Schwarzschild Metric in a universe with the same space time metric as that described in the orthogonal series, but with massive gravitons?

The universe described in the orthogonal series http://www.gregegan.net/ORTHOGONAL/00/PM.html is one, in which the minus sign in the space time interval is replaced with a plus sign. So this universe ...
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What would happen if I reversed the gravity of various manmade structures?

Skyscrapers appear to be pretty securely attached to the ground. So do bridges, houses, and more. But are they really attached to the ground? What would happen to the structure if I was to reverse ...