A teenage student in Belarus has invented a charger, which is powered by the energy from the human body.
The power-bank allows you to charge your phone simply by rotating your hand. The movement activates the device’s gyroscope to produce energy that can then be stored or used to charge a mobile.
The device costs about 80 dollars and it is now being prepared for mass-production. The 19-year-old inventor says the device can be an emergency source of clean energy.