Handheld windmills serve as electric generators

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Small-scale windmill that can power a wireless sensor network. Credit: Myers et al.
Small-scale windmill that can power a wireless sensor network. Credit: Myers, et al.

It’s not quite nanotechnology, but these inches-long windmills can generate small amounts of electric energy to power a variety of low-voltage applications. Since they’re made entirely of plastic, they cost just dollars to manufacture, offering potential for many uses including battery recharging, lighting in remote areas, and wireless sensors.


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