HandEnergy device charges phone with hand movements (7 images)

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A new gadget means smartphones can now be charged using the power of the human body. HandEnergy allows users to charge the battery on their phone simply by rotating their hand.

This motion activates the device's gyroscope to produce energy that can then either be stored or used to immediately charge a mobile. The innovative gadget, which received more than €60,000 (£50,872) in Kickstarter funding, is the brainchild of 19-year-old inventor Michael Vaga.
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