Rough surfaces, counter-intuitively, have less drag.
Think of golf balls. If you want your car to be more fuel efficient, sand it.
( Moon Girl Technologies horrendous beanbag, Wed 3 Jun 2009, 10:44, archived)

or go for the golf-ball physics
and smack it right up with a ball-peen hammer.
( Flapjack I spay a little mare for you, Wed 3 Jun 2009, 10:46, archived)

Can you imagine playing golf with a shark instead of a ball ?
What a load of shite people post on here...
( Goatworrier had your mum and she was shit, Wed 3 Jun 2009, 10:51, archived)

Tigershark Woods

( Moon Girl Technologies horrendous beanbag, Wed 3 Jun 2009, 10:52, archived)

Ernie Eels

(Bazongaloid, Wed 3 Jun 2009, 11:00, archived)

If I ever get a car, I'm going to try this.
It'll make my dad go nuts.
( Moon Girl Technologies horrendous beanbag, Wed 3 Jun 2009, 10:51, archived)

Only when pressure drag is dominant, otherwise the opposite is true.

( L-Space - scientia sapientes vocat., Wed 3 Jun 2009, 11:42, archived)

You're a bit late for this discussion.

( L-Space - scientia sapientes vocat., Wed 3 Jun 2009, 11:47, archived)

Sorry. Working.

( L-Space - scientia sapientes vocat., Wed 3 Jun 2009, 11:48, archived)

That's ok,
it doesn't make you wrong.
( L-Space - scientia sapientes vocat., Wed 3 Jun 2009, 11:48, archived)

I suppose not.

( L-Space - scientia sapientes vocat., Wed 3 Jun 2009, 11:49, archived)