Ian Johnston a écrit :

What the unititaited don't realise is that forces can be transmitted
by pressure or by momentum flux. At the surface of a wing, all the
force comes from pressure. A long way away from the wing, all the
force comes from momemntum transfer (there is effectively no pressure
difference). As you go from one to the other the balance changes. Most
people who "prove" theories of lift wrong simply forget to take
account of momentum flux.

Please explain us how momentum flux can be transmitted in a gas without pressure change. I think you will get at least a Nobel Price for such a revolutionary theory ;-)