4 ms·
If the speed of gravity was the speed of light, then heavy objects passing near the earth would have more gravity than objects passing away. This is a problem
by cynicalkane 16y ago
If the speed of gravity was the speed of light, then heavy objects passing near the earth would have more gravity than objects passing away.
This is a problem because...?
- maeon3 16y agoproblem because if you had a stable highly elliptical orbit of two bodies, the attraction would be greater during the approaching phase than the departure phase. The equation would not be balanced. Elliptical orbits would degrade due to the pulling being greater on arrival than departure. This is not the case. Maybe it is only a problem as you approach light speed.
- cousin_it 16y agoI believe the submitted article gives an example where orbits degrade in just the way you describe.
- ars 16y agoNo, the article describes something totally different. It talks about cases where an orbit decays because the gravity is felt at a different location from where you expect.
- ars 16y agoAs I mentioned in a different comment, that's not what happens.