De Westermolen, Kollumerpomp of the upright shaft. At the bottom of the upright shaft is the "crown wheel", which has 41 cogs, drives a gearwheel with 42 cogs on the axle of the Archimedes' screw. The axle of the Archimedes' screw is diameter. The screw is diameter . It is inclined at 16.7°. Each revolution of the screw lifts of water. The Archimedes' screw that pumped water into the polder has been removed. "De Westermolen" is open on Friday mornings. It is also open on Saturday mornings if there is enough wind to work the mill. De Westermolen, Kollumerpomp De Westermolen is a
Archimedes and the Seagle or dog, this very personal book of hard-won knowledge could well be tried and found true." Archimedes and the Seagle Archimedes and the Seagle (1984) is a novel by Australian writer David Ireland. It won the ALS Gold Medal in 1985. The Archimedes of the title is a dog, an old red setter who has learnt to read and who philosophises about the world. In particular, he is fascinated by seagulls, and one in particular, who appears to soar like an eagle, hence the "seagle". Veronica Sen in "The Canberra Times" noted: "An extraordinary thing about this novel is that