Most of the wind available on land is too gentle to push commercial wind turbine blades, but now researchers have designed a kind of 'tiny wind turbine' that can scavenge wind energy from breezes as little as those created by a brisk walk. The method is a low-cost and efficient way of collecting light breezes as a micro-energy source.
from Wind Energy News -- ScienceDaily https://ift.tt/3mIuoi9
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