How big would blades on a homemade windmill have to be to power a 1.5V lamp

Subject: How big would blades on a homemade windmill have to be to power a 1.5V lamp

Date: Mon May 26 13:14:45 2003
Posted by Erik
Grade level: 10-12 School: Copenhagen International School
City: Copenhagen State/Province: Sjælland Country: Denmark
Area of science: Physics
ID: 1053972885.Ph

Message:


I plan to make a wind mill for a school project and am wondering if there is a 
formula to calculate the size the blades would have to be to power a 1.5V lamp 
if the average windspeed is about 15km/h.

Re: How big would blades on a homemade windmill have to be to power a 1.5V lamp

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