Flying ... or Not Flying II

Try to stay in the middle of the air. Do not go near the edges of it. The edges of the air can be recognized by the appearance of ground, buildings, sea, trees and interstellar space. It is much more difficult to fly there.

Helicopters can't fly; they're just so ugly the earth repels them.

Helicopters don't fly; they just beat the air into submission.

(Unattributed quotes from www.airborne-aviation.com.au)

Taken from home on a day ill in bed, feeling much like Flying ... or Not Flying I. Fancy learning to fly?