Ever since antiquity, the screw, together with the lever, the wedge, the pulley, and the inclined plane, constituted the group of so-called simple machines; in the 3rd century BCE, Archimedes described it correctly as an inclined plane wrapped around a cylinder. The slanted wooden water screw, called an Archimedes’ screw though he did not invent it, was used for transferring water until the late 19th century (Hydraulic engineering; see Perpetual motion, fig. 1) [7]; [13. 9–32]. The wooden threaded shaft, in use in lat…