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.
New inventions helped farmers to meet some of the challenges of farming in the late 1800s. The steel plow invented by John Deere in 1838 and improved upon by James Oliver in 1 â¦ 868 sliced through the tough sod. Windmills adapted to the plains pumped water from deep wells to the surface.