On Jan 8, 2014, at 7:20 PM, Bill Gosper <billgosper@gmail.com> wrote:
C_n Hubcaps have to be made in two forms, one for each side of the car.
Okay, so I was wrong about that. But you'd think it would be so for "racemic" cars, like Ferraris and Lamborghinis.
<Veit
I never thought of that. But have the carmakers? Zero for 2 in the Tastebuds parking lot:
C_10 (modulo lugs) http://gosper.org/IMG_0174.JPG http://gosper.org/IMG_0175.JPG C_7 http://gosper.org/IMG_0176.JPG http://gosper.org/IMG_0177.JPG
WEC>I guess you mean has symmetry group C_n or D_n.
--rwg NeilB just now reports having Googled hubcap images with
either C_n or D_n for every 2≤n≤22. (The TereX Titan has
38 (huge) lugs, but only D_2.)
I'm stunned: there are 17-gons rolling on our highways??