Quote:
Originally posted by RiNkY:
The engines may indeed push the plane, but if the plane is on a conveyor belt moving in the opposite direction at the same speed that the engines are pushing the plane, it's still not gonna go anywhere. Unless it's a harrier jump jet - British Engineering can overcome this scenario smile

Me and my friend at work have been arguing about one of these kinda things for a few weeks now.

He says that if you fire a bullet from a gun perfectly level with the ground, then drop a bullet from the same height at the same time, both will hit the ground at the same time, as the Gravitational pull on both bullets is the same.

I call Bullshit as the aerodynamic flow over the bullet and the velocity of the bullet has to play into it somewhere.
The bullet that was just dropped would hit the ground first.