De Kievit, Menaldum of the "upright shaft" there are two "crown wheels" The upper "crown wheel", which has 35 cogs drives an Archimedes' screw via a "crown wheel". This screw was used to pump water into the polder. The lower "crown wheel", which has 35 cogs, drives a gearwheel with 32 cogs on the axle of an Archimedes' screw, which was used to drain the polder. The axle of the screw is diameter and long. The screw is diameter. It is inclined at 10°. Each revolution of the screw lifts of water. "De Kievit" is open to the public at any time it
SS Archimedes overhaul. Her engines and machinery were removed on an unspecified date at Sunderland, after which she continued in service as a sailing ship. In 1852, her sails and rigging were renewed, but she disappeared from the Register again a year or two later. She reportedly ended her career in the 1850s, in service between Chile and Australia. Although the adoption of the screw propeller was an historical inevitability given the work of John Ericsson and others, "Archimedes" considerably hastened acceptance of the technology. The Dover trials, carried out in April–May 1840, persuaded the Royal Navy to build a 900-ton steam