animaris humerus

I saw his TED lecture online about ayear ago. He is an interesting artist/engineer. His contraptions use 2 liter soda bottles to store up compressed air when the wind dies down on those lovely Dutch beaches. (I am pleasantly reminded of the scene on the beach, in Soldier of Orange, when the Dutch partisan are challenging one another to pronounce the name of the town Scheveningen which served as a shibboleth at the time.) The locomotion mechanism is simple and elegant. They are beautiful.

Ceci n'est pas un seing.