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Giromill a VAWT (Vertical axis wind turbine) this is a cardboard first test of a giromill.

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This is a cardboard proof-of-concept giromill vertical axis wind turbine.

The wings have a (suprisingly) wing-shaped profile, well, half way through the video you'll see what i mean. . It uses (partly) the lift of the wing shape for it's rotation, but only during certain angles to the wind. . .

Since it is a cardboard-hotmelt prototype, i just tried it indoors with a fan. . .
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