Ahem... getting back to dimples on golfballs, * I won't do this again, mods, I promise...*

<font face="arial,helvetica"> The purpose of the dimples is to create a rough surface that promotes an early transition to a turbulent boundary layer. This turbulence helps the flow remain attached to the surface of the ball and reduces the size of the separated wake so as to reduce the drag it generates in flight. When the drag is reduced, the ball flies farther. Some golf ball manufacturers have even started including dimples with sharp corners rather than circular dimples since research indicates that these polygonal shapes reduce drag even more.

http://www.aerospaceweb.org/question...cs/q0215.shtml

I kind of thought that bird looked like a Kaos. Isaw one fly last weekend.


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