Re: [Phys-l] Fun 2-D topology

[brian whatcott <betwys1@sbcglobal.net>]

On 11/11/2010 8:30 PM, John SOHL wrote:
> Here is a pretty fun 5 minute video clip of odd shaped gears. At the very first I was thinking "WHAT" but the moment before he started spinning the first one you think "but of course!" There are some wild shapes that are brilliant as gears.
>
> Enjoy:
> http://www.flixxy.com/gears.htm
>
> John
I recognized the one arm Maltese cross, once popular in four arm form,
 as the high end cine camera intermittant film drive,
and I recognized the Sun and planets, somewtimes used in auto transmissions,
 but the  variable rate gears were fascinating!
   Thanks.

Brian W