Ziggurat
Penultimate Amazing
- Joined
- Jun 19, 2003
- Messages
- 61,680
How do you make gravity repel?
You don't. And that's precisely why it dominates large scale structures of the universe: it always adds, it never cancels.
Very easy for the electric fields, charged particles and electric currents.
Quite so. Which is why at large scales it's much weaker than gravity: it mostly cancels.