English: The three primary types of wind turbine--Savonius and Darrieus vertical axis wind turbines (VAWTs) and a standard horizontal axis wind turbine (HAWT)--all with three blades, are spinning as if they are in operation in real wind. They are spinning at the same speed (mathematically); 30 rpm.
Jeg, indehaveren af ophavsretten til dette værk, udgiver dette værk som offentlig ejendom. Dette gælder i hele verden. I nogle lande er dette ikke juridisk muligt. I så fald: Jeg giver enhver ret til at anvende dette værk til ethvert formål, uden nogen restriktioner, medmindre sådanne restriktioner er påkrævede ved lov.
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