Unfortunately not.
I'm the same where I'll happily argue a fantastically wrong point just for the entertainment value. But there was no doubting the sincerity of his own conclusions in this case.

While I don't generally stroll around with a sense of moral superiority over all my peers there were in the case of this chap several incidences where he showed himself to be a several cards shy of a full deck.

As to the true cause of gravity, I'm not that bothered to look it up but I'm pretty sure that the conclusion that it's caused by rotation is bollocks. The rotation of planets would more likely seem to be a result of gravity rather than the cause.
(Woodlouse say it with flowers. Send her a Triffid, Sat 5 Mar 2011, 19:54, 2 replies)

As any fule kno
It's because this country sucks.
( His Popiness the Hole Invaded Poland on, Sat 5 Mar 2011, 21:12, closed)

I hope they don't switch it to blow.

(Woodlouse say it with flowers. Send her a Triffid, Sun 6 Mar 2011, 18:27, closed)

Conservation of angular momentum.
Back when the Solar System was clumping together from the remnants of an old star, it was spinning. This was because the Milky Way was spinning. I don't really know why the galaxies spin. Think of a teacup ride at the fair.

Anyway, the spinning dust cloud starts to clump together to form the Sun and all the planets, and much like when an ice skater brings in their arms and legs during a twist to go faster, as they get smaller and denser, they retain all that spin. Hence, spinning planets. Except Uranus, which does spin, but perpendicular to the rest of them.

Plus, the spin means that gravity is very slightly counteracted at the equator by a tiny amount - xkcd.com/852/

SCIENCE!*

_{*(Mainly just regurgitating various documentaries, but I'm taking a degree to learn the math!)}
( Mr.Ons knows you can hear him, Earthmen., Tue 8 Mar 2011, 9:18, closed)