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A whole house fan pulls air out of a building and forces it into the attic space or, in the case of homes without attics, through an opening in the roof or an outside wall. This forces air from the living areas into the attic and out through the gable and/or soffit vents, while at the same time drawing air from the outside into the living areas ...
A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).
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 ...
In the microelectronics industry, a semiconductor fabrication plant, also called a fab or a foundry, is a factory where integrated circuits (ICs) are manufactured. [1]The cleanroom is where all fabrication takes place and contains the machinery for integrated circuit production such as steppers and/or scanners for photolithography, etching, cleaning, and doping.
The 30 cm Raketenwerfer 56 was a six-barreled rocket launcher mounted on the carriage of the 5 cm PaK 38 anti-tank gun.Its 30 cm Wurfkörper 42 Spreng (Explosive missile) rocket was spin-stabilized and electrically-fired.
English: Stereo portable handsfree HPM-70 introduced in 2005. Featuring a 3.5mm jack and antenna for Sony Ericsson cell phones with FM radio. These are shipped with most of the Sony Ericsson's Walkman series phones.
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