Jeez, but you guys have been busy yesterday. Damn!

I now get what airfoil is about and how lift works (well it seems that people have different ideas about it), but I have the basic knowledge now.

Newtons third law I know, but what on earth is this Coanda effect? Somewhere I have heard this term used in a discussion, but I was listening with half an ear so didn't really catch the whole debate. As I could gather from what was said that evening was that the Coanda effect is when a gas flows over a convex contour that it will follow this surface over which it is going - and if I have to implement this theory into a planes wing it will then result in a downward "push" which will cause lift. Is this correct? Sorry it's early - to lazy to do a google now