Water hammer — (or, more generally, fluid hammer) is a pressure surge or wave resulting when a fluid in motion is forced to stop or change direction suddenly (Momentum Change). Water hammer commonly occurs when a valve is closed suddenly at an end of a pipeline … Wikipedia
Water wheel — This article is about the machine for converting energy of flowing or falling water. For paddle wheels used to propel watercraft, see paddle wheel ship. For wheels used solely to lift water, see Noria. For factories or industries driven by water… … Wikipedia
Water jacket — A water jacket is a water filled void surrounding a device, typically a metal sheath having intake and outlet vents to allow water to be pumped through the void. The flow of water to an external heating or cooling device allows precise… … Wikipedia
water jacket — a water filled casing or compartment used to water cool something, as an engine or machine gun. [1865 70] * * * … Universalium
water jacket — wa′ter jack et n. mac a water filled casing or compartment used to water cool something, as an engine or machine gun • Etymology: 1865–70 … From formal English to slang
Water clock — For the individual water clock at The Children s Museum of Indianapolis, see Water clock (Indianapolis). A display of two outflow water clocks from the Ancient Agora Museum in Athens. The top is an original from the late 5th century BC. The… … Wikipedia
Water scoop (hydropower) — A water scoop is a simple hydropower machine, i.e. a machine used to extract power from the flow of water. Unlike a water wheel it operates intermittent, like a seesaw: A container (bucket/cup) at the end of a lever is filled with water in the… … Wikipedia
Water well — Village pump redirects here. For information on Wikipedia project related discussions see Wikipedia:Village pump. Water well at the Wald monastery in Germany. A water well is an excavation or structure created in the ground by digging, driving,… … Wikipedia
Water fluoridation controversy — The water fluoridation controversy arises from moral, ethical, and safety concerns regarding the fluoridation of public water supplies. The controversy occurs mainly in English speaking countries, as Continental Europe does not practice water… … Wikipedia
water jacket — noun a container filled with water that surrounds a machine to cool it; especially that surrounding the cylinder block of an engine • Hypernyms: ↑vessel … Useful english dictionary
Barbaric Machine Clan Gaiark — The nihongo|Barbaric Machine Clan Gaiark|蛮機族ガイアーク|Bankizoku Gaiāku are the fictional antagonists from Engine Sentai Go onger . They are machine men from the Machine World who are last of their kind and desire to pollute the Earth. Gaiark bases… … Wikipedia