Pat Flannery wrote in
news:vcSdnW_jQdF0HdrVnZ2dnUVZ_gydnZ2d@northdakotat elephone:

I'd put larger diameter wheels on it, but it's a interesting concept:
http://dvice.com/archives/2008/06/mo...&cat=undefined

I can imagine the astronaut office collectively busting their
guts laughing at this ridiculous concept. It's another triumph
of style over function, especially internally.

--Damon