I couldn't see the video, but I saw the picture of the wheel
http://www.airtrax.com/products/ATX/whatomni.htm

which reminds me of a palm pilot robot with three wheels mounted equally
spaced on a circle with their direction of rotation tangential to the
circle ( imagine nailing three wheels into a disc at the edges of the
disc - turns it into a lazy susan).  They used wheels that had rollers
on them which would allow the wheel to slide along the ground sidways
without moving forward or backward (unless, of course, the wheel itself
was rolling forward or backward.)

Neat stuff.  I doubt this one is rated for highway speeds, though  ;-)

It's fun to think that people are still intent on improving the wheel...

-Adam

Eoin Ross wrote:

>http://www.airtrax.com/images/airtraxwebdownload.rm
>
>This video will have you doing a double-take and wondering
>"How the @#@# does that work?"
>
>http://www.airtrax.com/products/ATX/atx-e3000.htm
>
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