Archimedes' screw a crank mechanism in his "Bellifortis" (1405). This mechanism quickly replaced the ancient practice of working the pipe by treading. The Archimedes screw consists of a screw (a helical surface surrounding a central cylindrical shaft) inside a hollow pipe. The screw is usually turned by windmill, manual labor, cattle, or by modern means, such as a motor. As the shaft turns the bottom end scoops up a volume of water. This water is then pushed up the tube by the rotating helicoid until it pours out from the top of the tube. The contact surface between the screw and the
The Golden Screw by Larry Wells (piano) and Fergus Hambleton, (guitar.) The play was directed by David Eliscu, produced by Paul Stoudt, and the cast included: Tom Sankey, Janet Day, Patrick Sullivan and Murray Paskin. The musicians were Tom Sankey (autoharp), Jack Hopper (guitar) and members of The Inner Sanctum: Kevin Michael (lead guitar), Gerry Michael (drums), Vince Taggart (rhythm guitar). The script was published as "The Golden Screw, Or That's Your Thing, Baby" (1968). The Golden Screw The Golden Screw was an Off-Off-Broadway folk rock musical written and performed by Tom Sankey which premiered at the Theatre Genesis in September 1966. It