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Effective swing


Implants can be nourished by the body’s store of glucose, while batteries can be powered by air moisture.

Now, using an A5-sized device, a research team from Singapore has managed to generate electricity from a light breeze.

A long plate with a cube on its end is fixed to one side of a small base body.

The plate vibrates when wind speeds reach 7km/h and, swinging to the opposite side, presses two additional small plates together.

The ensuing friction effect creates up to 3 volts, which can generate 290 milliwatts.

Enough to power sensor devices used on buildings in order to monitor structural health. Or LED lights. Surplus energy is stored in a battery.

Speaking of wind

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