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The gas-generator cycle, also called open cycle, is one of the most commonly used power cycles in bipropellant liquid rocket engines. Propellant is burned in a gas generator (or "preburner") and the resulting hot gas is used to power the propellant pumps before being exhausted overboard and lost.
The lawn mower was invented in 1830 by Edwin Beard Budding of Stroud, Gloucestershire, England. [1] Budding's mower was designed primarily to cut the grass on sports grounds and extensive gardens, as a superior alternative to the scythe, and was granted a British patent on August 31, 1830.
Troy James Hurtubise (November 23, 1963 – June 17, 2018) was a Canadian inventor, entrepreneur and conservationist, noted for creating the Ursus series of bear suits which showed the Ursus Mark VI in the 1996 film Project Grizzly directed by Peter Lynch for the National Film Board of Canada.