http://www.town.higashiizu.shizuoka.jp/tsukuri/fuuryoku.html http://ja.wikipedia.org/wiki/%E9%A2%A8%E5%8A%9B%E7%99%BA%E9%9B%BB#.E7.89.B9.E5.BE.B4 http://www.nakahara-iki.co.jp/wind_power.html http://homepage1.nifty.com/cubo/wind/mill1.htm#…