- #1
Himal kharel
- 79
- 0
When a aeroplane is flying due to its shape of aerofoil it gets lift. But it is common to see (as in stunt shows) that they can fly upside down too. When they do so they must experience a "downward" lift and start falling down. but they maintain a constant altitude.
How can they do it?
How can they do it?