Solar Wind Bridge: a design to harness wind and solar energy

The Solar Wind Bridge: an amazing design for a large bridge to harness wind energy and solar energy. Will this design by Italian designers for a competition become reality once?

Strange creatures walking on the beach driven by the wind

Theo Jansen is a Dutch artist who creates Strandbeests, structures made out of plastic tubes and old lemonade bottles that are able to walk on the beach, driven by the wind.
I wonder if this still can be called lowtech. At least, he uses low tech materials, but he combines it with very hightech thinking. And he ends up with very poetic creatures. An intriguing and sometimes funny talk by Theo Jansen at TED, but I still don't get how this works.