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The Hoover Company is a home appliance company founded in Ohio, United States, in 1908.It also established a major base in the United Kingdom, where it dominated the electric vacuum cleaner industry during most of the 20th century, to the point where the Hoover brand name became synonymous with vacuum cleaners and vacuuming in the United Kingdom and Ireland.
MacDon swather New Holland Haybine H8040 self-propelled swather. A swather (North America), or windrower (Australia and rest of world), is a farm implement that cuts hay or small grain crops and forms them into a windrow for drying. Crimper rollers and cutting discs. They may be self-propelled with an engine, or drawn by a tractor and power ...
Large Low Speed Wind Tunnel 2.1 m (6 ft 11 in) by 1.5 m (4 ft 11 in) Low Turbulence Wind Tunnel 0.8 m (2 ft 7 in) by 0.6 m (2 ft 0 in) Open Jet Wind Tunnel 1.1 m (3 ft 7 in) diameter United Kingdom University of British Columbia Boundary Layer Wind Tunnel [90] 2.5 m × 1.6 m × 23.6 m (8 ft 2 in × 5 ft 3 in × 77 ft 5 in)
A wind tunnel is "an apparatus for producing a controlled stream of air for conducting aerodynamic experiments". [1] The experiment is conducted in the test section of the wind tunnel and a complete tunnel configuration includes air ducting to and from the test section and a device for keeping the air in motion, such as a fan.
The NATWT was a blow-down type tunnel. In contrast to a continuous wind tunnel, a blow-down wind tunnel only provides air for short period. A continuous wind tunnel is driven by large fans and typically is only capable of subsonic speeds. Because a blow-down tunnel can build up pressure over a long period time, it can release air at faster speeds.
Modern continuous tracks can be made with soft belts of synthetic rubber, reinforced with steel wires, in the case of lighter agricultural machinery. The more common classical type is a solid chain track made of steel plates (with or without rubber pads), also called caterpillar tread or tank tread , [ 1 ] which is preferred for robust and ...
The RCH 155 (Remote Controlled Howitzer 155 mm) is a wheeled self-propelled howitzer developed by Krauss-Maffei Wegmann (now known as KNDS Deutschland), a German defence company. The RCH 155 Module takes the firepower and the range of the PzH 2000 by using its gun (155 mm L/52), and combines it with an automated and remotely controlled gun module.
The sequence of images demonstrating the rotation of the self-propelled PVC tubing, containing camphor. [1] The time separation between frames is 0.33 s. Self-propulsion is the autonomous displacement of nano-, micro- and macroscopic natural and artificial objects, containing their own means of motion.
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