airplane on a treadmill

[man]

So you're saying that if the treadmill is moving at , lets say, 1000mph, the jet can still take off?????

It cant, there will be too much friction created by the wheels... the jets would be able to make enough thrust to over come airspeed.

Answer to 1000mph question, that depends on the coefficient of friction on the wheels. But since a VW Touareg (522lb-ft of torque) was able to tow a 747, we can assume the Cf is almost negligible. If a car can move it on stationary ground, how are you gonna tell me that 4 Rolls-Royce Turbofan engines (each with 63,300lb max thrust) can't move it with a very small amount of added resistance.

ok... here is the sole question.

How does a treadmill DIRECTLY create lift?

Tread mill doesn't do anything other than add a small amount of resistance, requiring a little more thrust.