Genezareth, Hallum of the "upright shaft", a "crown wheel" with 35 cogs drives a gear with 35 cogs on the axle of the Archimedes' screw. The axle of the Archimedes' screw is 340 millimetres (13¼ in) diameter. The Archimedes' screw is diameter and long. It is inclined at an angle of 17½°. Each revolution of the Archimedes' screw lifts of water. The "Genezareth" is open to the public by appointment, or if it is working. Genezareth, Hallum The Genezareth or Kloosterpoldermolen is a smock mill in Hallum, Friesland, Netherlands which was built in 1850 and has been restored to working order. The
Trammel of Archimedes of Archimedes intended to draw, cut, or machine ellipses, e.g. in wood or other sheet materials. An ellipsograph has the appropriate instrument (pencil, knife, router, etc.) attached to the rod. Usually the distances "a" and "b" are adjustable, so that the size and shape of the ellipse can be varied. The history of such ellipsographs is not certain, but they are believed to date back to Proclus and perhaps even to the time of Archimedes. Wooden versions of the trammel of Archimedes have been produced also as toys or novelty items, and sold under the name of Kentucky do-nothings, nothing