Scientists in Bristol have managed to charge a mobile phone by putting urine through a cascade of microbial fuel cells. What an ultimate way of using a -bottomless (...)- natural resource! I suppose this is also very good news for all people like me that drop their phone in the loo at regular interval. Instead of worrying if it is still working, it will be an easy way to get it charged!
More info:
Huffington Post
Waterproof phone
