Salon.com: The average person urinates seven times per day, and it is hard not to think of the bodily fluid as waste. But to scientists at NASA and the University of Puerto Rico, one person's pee could be that same person's refreshing glass of water — and power supply. A newly developed filtration system has the capability of turning urine into water and create electricity with the waste material. The results were published last month in the journal Sustainable Chemistry & Engineering.
The International Space Station has been using a similar urine converting system since 2008.