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Steve Hallee; Maine Native, Science Teacher, Inventor and founder of Green Ridge Energy, Tecwind, Seneaflo and Silverleaf Instruments discusses how wind is generated by the sun in our atmosphere on earth, how the ancients captured wind for sailing vessels and for wind power on land to grind corn and pump water. Details of how sails and windmill blades have changed over the years to optimize how much power they catch from the wind is presented. This lecture includes the latest offshore wind power technology and the latest Sailing World Cup designs being discussed.

Video by George Kerper