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LG was also an official supplier to Virgin Racing and Lotus Racing team, plus engine manufacturer Cosworth from 2010 to 2012. [89] LG also sponsors London Fashion Week and the LG Arena in Birmingham. [90] During the period 2001–2003, LG sponsored the snooker Grand Prix. During these years the tournament was known as the LG Cup. In 2008, LG ...
Innovations in the latter half of the 20th century allowed more ubiquitous air conditioner use. In 1945, Robert Sherman of Lynn, Massachusetts, invented a portable, in-window air conditioner that cooled, heated, humidified, dehumidified, and filtered the air. [37] The first inverter air conditioners were released in 1980–1981. [38] [39]
A power inverter, inverter, or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). [1] The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. [2]