An interesting diagram intended only to express the concept of lift.
Aerodynamic Tips and Tricks You Can Use for Better Performance - Hot Rod Magazine
Quote:
Airplanes fly because of lift generated by their wings. Air moves fasterover the wing's upper curved surface (as shown over the roof of thiscar) than the lower flat surface (the air shown under the car). Thefaster moving air creates a localized low-pressure area. With denser airunderneath, lift is generated. Full-bodied production cars are shapedvery much like an airfoil so they have natural lift. Good for anairplane, bad for a car.
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I have to admit, the above diagram did remind me of the below diagram.
http://www.gerrelt.nl/section-aerody...planation.html