Posted: Jun 26, 2017 11:50 am
by DavidMcC
lpetrich wrote:
DavidMcC wrote:
lpetrich wrote:...

He then claims that his electromagnetic theory of gravity can explain why the planets' orbits are approximately coplanar.

He presumably ignores the fact that gravity also explains why the planets' orbits are approximately co-planar - they are all derived fron the same spun-up mass of gas and dust.

There was a nongravitational force involved here: collisions. Collisions between gas molecules and collisions between condensed objects from dust grains to full-scale planets.

I'm sure collisions play a role too.