Teenager invents phone charger which generates energy from the human body
http://www.telegraph.co.uk/technology/2017/01/02/teenager-invents-phone-charger-generates-energy-human-body/
Teenager invents phone charger which generates energy from the human body
http://www.telegraph.co.uk/technology/2017/01/02/teenager-invents-phone-charger-generates-energy-human-body/