Scholars from the universities of Bristol, West of England and the Bristol Robotics Laboratory stated that with the energy they got were able to send text messages, use the Internet network and make a quick call. Ioannis Ieropoulos, Bristol University research scientist, reported in the latest issue of the journal of Chemical Physics who managed to use the power of urine to recharge cell phones enough for texting, using the internet and a short call
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http://osaseye..com/2013/07/recharge-phone-with-urine.html#.UeljT42TjiU, http://www.bbc.co.uk