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In liquid rocket engines, the oxidiser comes in the form of a liquid and needs to be delivered at high pressure (typically 10-230 bar or 1–23 MPa) to the combustion chamber. This is normally achieved by the use of a centrifugal pump powered by a gas turbine — a configuration known as a turbopump, but it can also be pressure fed.
The first electric chainsaw was invented by Stihl in 1926. [21] Corded chainsaws became available for sale to the public from the 1960s onwards, [ 22 ] but these were never as successful commercially as the older gas-powered type due to limited range, dependency upon the presence of an electrical socket , plus the health and safety risk of the ...
Stihl was founded in 1926 by Andreas Stihl, an innovator in early chainsaw production. Stihl says it is the world's best-selling brand of chainsaws and the only chainsaw manufacturer to make its own saw chains and guide bars. [4] Andreas Stihl AG is a privately held company owned by the descendants of Andreas Stihl.
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It can also be used to export form data to stand-alone files that can be imported back into the corresponding PDF interactive form. As of August 2019, XFDF 3.0 is an ISO/IEC standard under the formal name ISO 19444-1:2019 - Document management — XML Forms Data Format — Part 1: Use of ISO 32000-2 (XFDF 3.0) . [ 58 ]
MS.500: Liaison version. French produced with 240 hp French built Argus engine, as the Fi 156 had used. MS.501: With a 233 hp Renault 6Q inverted, air-cooled "straight six" engine instead of the Argus inverted V8. MS.502: Liaison version. Identical to the MS-500, with the Argus engine replaced by a 230 hp Salmson 9ab radial engine.
Many cyanobacteria form motile filaments of cells, called hormogonia, that travel away from the main biomass to bud and form new colonies elsewhere. [56] [57] The cells in a hormogonium are often thinner than in the vegetative state, and the cells on either end of the motile chain may be tapered. To break away from the parent colony, a ...
The Yakovlev MC-21 (Russian: Яковлев МС-21) is a single-aisle airliner, under development in Russia by the Yakovlev Corporation (formerly known as Irkut Corporation), a branch of the United Aircraft Corporation (UAC), itself a 92%-owned subsidiary of Russia's state-owned aviation giant Rostec.