PROBLEM TO BE SOLVED: To provide a vertical shaft wind mill capable of being rotated at high speeds matched with wind velocity in a short time at the beginning of the rotation.;SOLUTION: In this wind mill 1, longitudinal blades are disposed on a rotating body 3 having a vertical spindle 2. The blades are formed such that far positioned blades 41 and near positioned blades 42 are disposed on the opposite sides of the shaft with far and near differences from the vertical shaft 2.;COPYRIGHT: (C)2005,JPO&NCIPI
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