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Didn't realise that windmill blades are serrated (lemmy.world)

submitted 2 years ago by [email protected] to c/[email protected]

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Took the weans a walk away up the back of The Three Towns in Ayrshire where they are installing these big bad boys.

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[–] [email protected] 43 points 2 years ago (11 children)

They disrupt the trailing edge eddies - which is what causes any noise - and so make them quieter. They are often fitted in areas where sound might be a particular issue.

[–] [email protected] 12 points 2 years ago

I can't hear the word eddies without thinking Hitchhiker's Guide

"Eddies," said Ford, "in the space-time continuum."

"Ah," nodded Arthur, "is he. Is he."

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