"Matt Whiting" wrote in message
...
Mike Rapoport wrote:

It is kinetic energy of each molecule that moves the the air. The
particles are just bouncing off other particles in a radom fashion. The
low pressure area has fewer molecules to run into (and bounce back
towards the higher pressure) so the molecules generally move towards the
low pressure. Thus it is the high pressure driving the air.

But how did you get all those molecules out of the area in order to form
the low? Conversely, how did you get all of the molecules together to
form the high?

Matt
The heating and the cooling of air. The warmer it gets the air expands, this
would be the push. When the air cools and and condenses you get the pull.