A new type of tail light when driving in dark and foggy conditions.
In the future, we may have remote-controlled insects to reach places humans cannot. At least that's what Dr. Hirotaka Sato, an aerospace engineer from Singapore, is hoping.
University of Washington engineers present the first battery-free cellphone design that consumes only a few micro-watts of power. The new design can sense speech, actuate the earphones, and switch between uplink and downlink communications, all in real time.
