we got to check out a dozen or so prototypes of ways to save energy. from wave bobs that produce electricity, to hard drives with breathable cardboard shells to glasses that have self adjustable prescriptions (watch a 20 min video of these on www.ted.com. there was a toilet with a sink build in, flexible solar sheet panels, and light producing algae...
my favorite was honeycomb shaped water containers that double as building blocks for walls and shelter, a great package design for sending aid to any region in need of food or water.
