Recent content by Btl60

....no, sir thank you for playing...the gravitational pull on earth is what causes weight and thus giving weight to the air. The higher you go in altitude out of the atmosphere the less the gravitational pull lessening the density of the atmosphere. That is why the moon doesn't have oxygen and...

Okay, my understanding now is that there is less gravitational pull at higher altitudes causing the air to dissipate.

Hello all, I'm stuck on the reasoning of density at high altitudes. At high altitudes aircraft performance is decreased due too less density. What's contradictory is that the higher altitude the colder the air causing the air to be more dense. Can someone clear this situation up for me...