Very disappointed that a UK engineering group (OU Eng & Tech) re-iterate the myth that wings fly because "wings are curved on top and flatter on the bottom" (OU-assocaited BBC "How to Make- A super jumbo wing" 07' 30'' from start). Plainly not true as can be observed by ability of aeroplanes to fly inverted. Aerofoils generate lift by adding rotation to the fluid: see
http://www.av8n.com/how/htm/airfoils.html
http://en.wikipedia.org/wiki/Lift_%28force%29
http://iopscience.iop.org/0031-9120/38/6/001/pdf/pe3_6_001.pdf














