1. You say the air moves with Earth because of friction? Can you explain how friction works on a gas? And how come a moving car does not carry air along it (friction) but encounters air resistance (at considerably less speed than 1600 km/hr)? Plus, air density varies... so upper layers would move at different speeds with the higher being slower, no? 2. If an airplane flies west (Earth spins easterly) then the plane would have to fly against air (a friction-full medium) that is moving at 1600 km/hr. How is that done? I know that as an airplane takes off it moves Easterly (together with the Earth) at 1600 km/hr. To turn Westerly, what should it do? Slow itself up relative to Earth speed? How?
Air moving with Earth, airplane flight
1. You say the air moves with Earth because of friction? Can you explain how friction works on a gas? And how come a moving car does not carry air along it (friction) but encounters air resistance (at considerably less speed than 1600 km/hr)?
Plus, air density varies... so upper layers would move at different speeds with the higher being slower, no?
2. If an airplane flies west (Earth spins easterly) then the plane would have to fly against air (a friction-full medium) that is moving at 1600 km/hr. How is that done? I know that as an airplane takes off it moves Easterly (together with the Earth) at 1600 km/hr. To turn Westerly, what should it do? Slow itself up relative to Earth speed? How?