A new alloy with unique properties can convert heat directly into electricity, according to researchers at the University of Minnesota. The alloy, a multiferroic composite of nickel, cobalt, manganese and tin, can be either non-magnetic and highly magnetic, depending on its temperature.
Good news for those of us that are into biomimicry. UAVs modeled after maple seeds, bone glue modeled after sea worms, shoes that let humans walk up walls like spiders -- our long wait for artificial insect silk could be nearing the end.
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.