Shapes of constant width

Shapes of constant width

Some links for you to look at these amazing shapes and their properties.

solids of constant width youtube.
solids of constant width website
fun with Reuleaux Triangles youtube

Wikipedia has a pretty good page explaining the definition of the curve of constant width.

And Josh Bongard and Hod Lipson of Cornell University have written a nice paper on the subject.

Bicycle with wheels of constant width
This bicycle is very clever in that the real support are NOT the central axes, but wheel supports on top of the wheel. The ride should be relatively smooth. Could not find a youtube link ....