Cut batts to length by setting the top of the batt into the space and cutting against the bottom plate with a sharp utility knife. Leave an extra 1/2 in. of length for a tighter fit. We're using unfaced batts that are sized to friction-fit into standard stud spaces (either 16-in. or 24-in. on-center studs).
History of Windmills. The Persians seem to have been the first to develop windmills (between 500 and 900 A.D.). Sails had long been used to move ships at sea, but the Persians converted the wind for use in grinding grain.
In 1887 Charles F. Brush designed and erected the world's first wind-powered electric generator in Cleveland, Ohio. It operated for 12 years delivering 12 kilowatts of power to Brush's home on 37th and Euclid Avenue. Brush's home was demolished after his death in 1929, but the windmill was left standing.