I heard that a Formula 1 car travelling at 200 kilometres per hour would generate enough downforce (or suction) to allow it to stick to the ceiling.

Is this correct? And if it is, how is the force generated?

Robert Webber, Melbourne, Australia

(Image: mzacha, stock.xchng)

This is an interesting thought-experiment and gave us some great answers. Clearly the long-running debate over how aircraft wings achieve lift is still alive and kicking - Ed