Archimedes' screw screws of decreasing pitch are used for the compaction of waste material. If water is fed into the top of an Archimedes screw, it will force the screw to rotate. The rotating shaft can then be used to drive an electric generator. Such an installation has the same benefits as using the screw for pumping: the ability to handle very dirty water and widely varying rates of flow at high efficiency. Settle Hydro and Torrs Hydro are two reverse screw micro hydro schemes operating in England. The screw works well as a generator at low heads, commonly found in English
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