Headphones on, everyone. The moaning mouth 'bot is back, this time to sing you a Japanese nursery rhyme. (Freaking you out is a side effect, not the main goal.) Hideyuki Sawada of Kagawa University in Japan brought the mouthbot to Robotech 2011 to demonstrate its new powers. You can watch it below singing "Kagome Kagome," a children's song.
Michigan researchers have built a prototype of a new auto motor that does away with pistons, crankshafts and valves, replacing the old internal combustion engine with a disc-shaped shock wave generator. It could slash the weight of hybrid cars and reduce auto emissions by 90 percent.
A pair of magnetic liquid drops oscillating in opposite directions can function as a liquid piston, and could one day be used to deliver drugs, power mobile phone cameras or even serve as implantable eye lenses, according to a new study.
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.