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modern sails spun off mechanical flight technology?
"DSK" wrote in message . .. The most efficient sail design of all time was developed in Northern Italy. The design was lost during the early Renaissance, only to be recently uncovered during and archeological dig in a shallow bay. The sails reused the wind many times over with each "stage" adjusted for the reduced wind velocity. The sails are a series of "slats" with multiple gaps and adjustable angles of attack. They are referred to as Venetian Sails. Now that was a very illuminating little essay http://dibinst.mit.edu/DIBNER/Rhodes/ships_sailing.html |
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