Fifteen of these flower-shaped solar panels were installed last month in an open space between a highway and a retail lot in Austin, Texas. They not only provide a green source of energy, but also bring a fresh look to solar panel design. Unfortunately, I can't help but think of those fake-tree cellphone towers when I see these things.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.