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What does 'mid' mean? Think: a lukewarm bowl of mac-and-cheese or a three-star hotel, says Kelly Elizabeth Wright, a postdoctoral research fellow in language sciences at Virginia Tech.
Mid-century modern (MCM) is a movement in interior design, product design, graphic design, architecture and urban development that was present in all the world, but more popular in North America, Brazil and Europe from roughly 1945 to 1970 during the United States's post-World War II period.
Displacement ventilation systems supply air directly to the occupied zone.The air is supplied at low velocities to cause minimal induction and mixing. This system is used for ventilation and cooling of large high spaces, such as auditorium and atria, where energy may be saved if only the occupied zone is treated rather than trying to control the conditions in the entire space.
By comparison, most modern "warm air" furnaces typically use a fan to circulate air to the rooms of house and pull cooler air back to the furnace for reheating; this is called forced-air heat. Because the fan easily overcomes the resistance of the ductwork, the arrangement of ducts can be far more flexible than the octopus of old. In American ...
Combinations define other types. A two-story, single pen house is known as a stack house. Pens can also be extended side by side to create a two-pen house, which with a central hall becomes a dogtrot. A two-story, two-pen house is the basic I-house. The house may by modified by additions, but the pen system provides a classification.
A two-stage air conditioner is designed to operate on high and low settings during different weather conditions and seasons. The high setting is used during extreme weather, and the low setting is used during moderate weather. This type of air conditioner produces a balanced temperature and is in use for a longer period of time.
In the U.S. most medium-density or middle-sized housing was built between the 1870s and 1940s [10] due to the need to provide denser housing near jobs. Examples include the streetcar suburbs of Boston which included more two-family and triple-decker homes than single-family homes, [10] or areas like Brooklyn, Baltimore, Washington D.C. or Philadelphia [10] which feature an abundance of row-houses.
A passenger has told NBC News of the dramatic incident that saw people aboard a Boeing flight thrown into the ceiling, as authorities probed what caused the plane's sudden mid-air plunge.