| 摘要 |
A self-adjusting blade for wind turbine generator or windmill will change width of blades according to wind speed to optimize efficiency. The windmill comprises a brace, rib tubes, cylinders, cylinder holders, hose holders, non-movable shells, and movable shells. The movable shells and rib tubes are organized like extendable antennas of portable radios. The movable shells are moved and held by cylinders. There are sets of hose holder for hoses and wires for cylinders. A micro-controller controls cylinders to move the movable shells according wind speed.
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