Originally built in the 1720's in South Orleans on Cape Cod, this windmill was moved to other locations before being finally dismantled, restored, and returned to its current central Orleans location. (Its actual color is typical New England weather-faded cedar gray - my photo takes artistic license).
Note the curve of the blades. Although in the two thousand year history of windmills, the early folks didn't know the physics of why it worked the way it did, they did learn that certain curves and placements both generated more efficiency and reduced overspeed during very strong winds.
No comments:
Post a Comment