Now, most boaters refer to sacrificial anodes as âzincs,â because zinc has been used for a long time. But there are other âzincsâ made of aluminum, magnesium and various alloys with various trade names.n a hypothetical situation where zinc would last 150 days, magnesium would last but 50 days, while an aluminum anode would have corrosion lined up at the chow line for 225 days.
Although water is also incompressible but it is usually considered a contaminant rather than a hydraulic fluid in systems, but recently students of Purdue university claim to have built a small lawn mower which uses only water in all its hydraulic systems.
Heavy water is so named because it is significantly more dense (>1.1 g/cm3) than ordinary (âlightâ) water, 1H2O (1 gm/cm3). Heavy water is not radioactive and has the same chemical properties as light water; a person could drink a glass of heavy water without harm. However, heavy water is better than light water at moderating (slowing) neutrons, which makes it useful in some nuclear reactor cores. Its scarcity during World War II, partly assured by bombing raids and daring Allied commando missions to destroy heavy-water production facilities, interfered critically with the German and Japanese nuclear programs.