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A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [ 1 ]
A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...
Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...
Schematic diagram illustrating a modern 2-spool turbofan engine installation in a nacelle. ... in the range of speeds from about 500 to 1,000 km/h (270 to 540 kn; 310 ...
Officially 85; estimates range up to 1,000. [ 1 ] The Night of the Long Knives ( German : Nacht der langen Messer , pronounced [ˈnaxt deːɐ ˈlaŋən ˈmɛsɐ] ⓘ ), also called the Röhm purge or Operation Hummingbird (German: Unternehmen Kolibri ), was a purge that took place in Nazi Germany from 30 June to 2 July 1934.
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Wernher von Braun was born on 23 March 1912, in the small town of Wirsitz in the Province of Posen, Kingdom of Prussia, then German Empire and now Poland. [14]His father, Magnus Freiherr von Braun (1878–1972), was a civil servant and conservative politician; he served as Minister of Agriculture in the federal government during the Weimar Republic.
Ambient 1: Music for Airports is the sixth studio album by English musician Brian Eno, released in March 1978 by Polydor Records.It is the first of Eno's albums released under the label of ambient music, a genre of music intended to "induce calm and a space to think" while remaining "as ignorable as it is interesting".