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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 rotate and produce thermal energy in a process known as dielectric heating .

  3. Waveguide (radio frequency) - Wikipedia

    en.wikipedia.org/wiki/Waveguide_(radio_frequency)

    In radio-frequency engineering and communications engineering, a waveguide is a hollow metal pipe used to carry radio waves. [1] This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas, in equipment such as microwave ovens, radar sets, satellite communications, and microwave ...

  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.

  5. All of the best Black Friday deals: Amazon, Walmart, Wayfair ...

    www.aol.com/lifestyle/all-of-the-best-black...

    Ninja Nutri-Blender 700-Watt Personal Blender. $59 $78 Save $19. ... $550 (was $750) at Best Buy ... Use it in the kitchen to store bulky appliances like your microwave, Crock Pot and blender, or ...

  6. These are the 20 best Cyber Monday deals under $100 at Walmart

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    Ninja Grand Kitchen System 1200 Watts. $98 $169 Save $71. Ninja products go on sale here and there, but this is the first time we can recall seeing such a good price on their 1200-watt blender ...

  7. Radio spectrum - Wikipedia

    en.wikipedia.org/wiki/Radio_spectrum

    A radio band is a small frequency band (a contiguous section of the range of the radio spectrum) in which channels are usually used or set aside for the same purpose. To prevent interference and allow for efficient use of the radio spectrum, similar services are allocated in bands.