From the “You Can’t Make This Up Department”, Wearable Energy Generator Uses Urine to Power Wireless Transmitter. From the UK journal Bioinspiration and Bioimetics (Vol. 11, Number 1), dated Dec. 10, 2015, by Taghavi, et al, a pair of socks embedded with miniaturized microbial fuel cells (MFCs) and fueled with urine pumped with the user’s footsteps has powered a low-power wireless transmitter to send a test signal to a PC.
For more info, click here.