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2. Microwave oven - Wikipedia

   en.wikipedia.org/wiki/Microwave_oven

   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 vibrate [2] and produce thermal energy in a process known as dielectric heating. Microwave ovens heat foods quickly and efficiently ...

3. Cavity magnetron - Wikipedia

   en.wikipedia.org/wiki/Cavity_magnetron

   A cavity magnetron generates microwaves using the interaction of a stream of electrons with a magnetic field, while moving past a series of cavity resonators, which are small, open cavities in a metal block. Electrons pass by the cavities and cause microwaves to oscillate within, similar to the functioning of a whistle producing a tone when ...

4. Microwave - Wikipedia

   en.wikipedia.org/wiki/Microwave

   Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves but longer than infrared waves. Its wavelength ranges from about one meter to one millimeter, corresponding to frequencies between 300 MHz and 300 GHz, broadly construed. [1][2]: 3 [3][4][5][6] A more common definition in radio-frequency engineering ...

5. These Are the Best Cheap Microwaves from GE, Black ... - AOL

   www.aol.com/microwaves-cost-150-less-don...

   This Black+Decker microwave oven offers decent size and power for under $100, making it one of the best options available at this price point. ... as well as a built-in humidity sensor—a feature ...

6. The Best Countertop Microwave Ovens for 2022, Ranked from ...

   www.aol.com/lifestyle/countertop-microwave-ovens...

   countertop microwave ovens galanz retro. Buy: Galanz Retro Microwave Oven $69.88 (orig. $89.99) 22% OFF. 2. BLACK+DECKER Digital Microwave Oven. BEST BUDGET. With a price tag under $100, this ...

7. Klystron - Wikipedia

   en.wikipedia.org/wiki/Klystron

   A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian, [1] which is used as an amplifier for high radio frequencies, from UHF up into the microwave range. Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power ...