That's the coolest thing I've seen for a long time. Reckon they'd scare the pants of most children on the beach though. I could just imagine one of those things barrelling down the beach taking out sandcastles left right and centre!
So Guys.... You reckon that's Cool Shiite???
Cop some more www.youtube.com/results?search_query=Theo+Jansen&aq=f
He makes some good stuff.
Ron