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A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. [1] This induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating .
1940: Cavity magnetron improved by John Randall (1905–1984) and Harry Boot (1917–1983); consequently a critical component in microwave ovens and some radar. [60] Late-1940s/early 1950s: The microchip invented by Geoffrey W.A. Dummer (1909–2002). 1963: High strength carbon fibre invented at the Royal Aircraft Establishment in 1963.
Thermos LLC is a manufacturer of insulated food and beverage containers and other consumer products. The original company was founded in Germany in 1904. [2]In 1989, the Thermos operating companies in Japan, the UK, Canada and Australia were acquired by Nippon Sanso K.K., which had developed the world's first stainless steel vacuum bottle in 1978, [3] before it renamed itself Taiyo Nippon ...
So it’s 6p turning the microwave on for that amount of time. So yes it’s a very useful equation.” The average oven uses around 3kW, meaning it costs around £1.02 an hour to use, according ...
Harry Brearley (18 February 1871 – 14 July 1948) was an English metallurgist, credited with the invention of "rustless steel" (later to be called "stainless steel" in the anglophone world). Based in Sheffield , his invention brought affordable cutlery to the masses, and saw an expansion of the city's traditional cutlery trade.