[Angus McInnes] has been working on AM radio transmission techniques. He tried out a method of using a VGA port for the task but found the vertical blanking was audible. His latest experiments use a ...

A pair of socks embedded with miniaturized microbial fuel cells and fueled with urine pumped by the wearer's footsteps has powered a wireless transmitter to send a signal to a PC. This is the first ...

Placing a sheet of atom-thin graphene into a feedback circuit causes spontaneous self-oscillation that can be tuned to create frequency-modulated (FM) signals. Changyao Chen, Sunwoo Lee, Columbia ...