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A microwave oven, c. 2005 Simulation of the electric field inside a microwave oven for the first 8 ns of operation. A microwave oven heats food by passing microwave radiation through it. Microwaves are a form of non-ionizing electromagnetic radiation with a frequency in the so-called microwave region (300 MHz to 300 GHz).
It wasn’t until 1967, two decades after its invention, that the microwave oven finally caught on in American homes in the form of Amana’s compact “Radarange.” By 1975, a million microwaves ...
A microwave oven passes microwave radiation at a frequency near 2.45 GHz (12 cm) through food, causing dielectric heating primarily by absorption of the energy in water. Microwave ovens became common kitchen appliances in Western countries in the late 1970s, following the development of less expensive cavity magnetrons. Water in the liquid ...
In 1947, Raytheon under Percy Spencer demonstrated the world's first microwave oven built at the company which was called the "Radarange". [305] 1945 Cruise control. Cruise control automatically controls the rate of motion of a motor vehicle. The driver sets the speed and the system will take over the throttle of the car to maintain the same speed.
Percy Spencer, an engineer working for American defense contractor Raytheon, accidently discovered a new use for radar technology in the mid-1940s. While standing near an active magnetron, which ...
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By then computers were 35% of Radio Shack sales; the Model 100 was the world's best-selling notebook computer, while Tandy was the leading Unix vendor by volume, selling almost 40,000 units of the 68000-based, multiuser Tandy Model 16 with Xenix, [17] [23] and began selling all computers using the Tandy brand [24] because, an executive admitted ...
Putting a non-microwave-safe material in a microwave oven can lead to chemicals leaching into your food (not good) or the melting of the container, which can lead to burns — or, at the very ...