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81Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …
82Glaucoma — Classification and external resources Acute angle closure glaucoma of the right eye. Note the mid sized pupil, which was nonreactive to light, and injection of the conjunctiva. ICD 10 …
83Giotto mission — Infobox Spacecraft Name = Giotto Caption = Artist s concept of Giotto Organization = European Space Agency Major Contractors = Mission Type = Fly by Flyby Of = Comet Halley, Comet Grigg Skjellerup, Earth Flyby Date = (Halley) March 14, 1986,… …
84Two-stroke engine — Brons two stroke V8 Diesel engine driving a Heemaf generator. A two stroke engine is an internal combustion engine that completes the process cycle in one revolution of the crankshaft (an up stroke and a down stroke of the piston, compared to… …
85Grade (climbing) — Rock climbing History Styles Technique Equipment and protection Grades (difficulty of climb) Terminology Belaying Abseiling …
86Latin Rite — The Latin Rite is one of the 23 sui iuris particular Churches within the Catholic Church. This particular Church developed in western Europe and north Africa, where, from antiquity to the Renaissance, Latin was the principal language of education …
87Cylinder bank — Napier Lion W or broad arrow layout with three banks …
88Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …
89Four-stroke engine — Four stroke cycle used in gasoline/petrol engines. The right blue side is the intake and the left yellow side is the exhaust. The cylinder wall is a thin sleeve surrounded by cooling liquid. A video montage of the Otto engines running at the… …
90Heinkel He 111 — infobox Aircraft name = He 111 type = Medium bomber manufacturer =Heinkel Flugzeugwerke caption = designer = Siegfried and Walter Günter first flight = 24 February avyear|1935 introduced = 1936 retired = 1945 primary user = Luftwaffe produced =… …
