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BBC NEWS | Technology | Knee dynamo taps 'people power'
A stroll around the park may soon be enough to charge the raft of batteries needed in today's power-hungry gadgets.
US and Canadian scientists have built a novel device that effortlessly harvests energy from human movements.
The adapted knee brace, outlined in the journal Science, can generate enough energy to power a mobile phone for 30 minutes from one minute of walking.
A stroll around the park may soon be enough to charge the raft of batteries needed in today's power-hungry gadgets.
US and Canadian scientists have built a novel device that effortlessly harvests energy from human movements.
The adapted knee brace, outlined in the journal Science, can generate enough energy to power a mobile phone for 30 minutes from one minute of walking.
