A portable wind turbine the size of a water bottle https://singularityhub.com/2022/05/11/this-mini-portable-wind-turbine-is-the-size-of-a-water-bottle-and-charges-devices-in-under-an-hour/
A portable wind turbine the size of a water bottle https://singularityhub.com/2022/05/11/this-mini-portable-wind-turbine-is-the-size-of-a-water-bottle-and-charges-devices-in-under-an-hour/
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