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2. Microwave oven - Wikipedia

   en.wikipedia.org/wiki/Microwave_oven

   Globally. 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 ...

3. Percy Spencer - Wikipedia

   en.wikipedia.org/wiki/Percy_Spencer

   In 1947, the first commercially produced microwave oven was about 6 feet tall, weighed about 750 lbs, and cost about $5,000 (equivalent to $68,227 in 2023). In 1967 the first more affordable, $495 (equivalent to $4,523 in 2023), and reasonably sized (counter-top) Radarange brand microwave oven was made available for sale, [ 2 ] produced by ...

4. Waveguide - Wikipedia

   en.wikipedia.org/wiki/Waveguide

   A waveguide is a structure that guides waves by restricting the transmission of energy to one direction. Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct electromagnetic waves other than light like radio waves .

5. List of food preparation utensils - Wikipedia

   en.wikipedia.org/wiki/List_of_food_preparation...

   A serrated blade made of metal, and long enough to slice across a large loaf of bread. Using a sawing motion, instead of pushing force as with most knives, it is possible to slice the loaf without squashing it. Browning tray. Browning plate, Browning bowl. Used in a microwave oven to help turn food brown.

6. Microwave burn - Wikipedia

   en.wikipedia.org/wiki/Microwave_burn

   The depth of penetration depends on the frequency of the microwaves and the tissue type. The Active Denial System ("pain ray") is a less-lethal directed energy weapon that employs a microwave beam at 95 GHz; a two-second burst of the 95 GHz focused beam heats the skin to a temperature of 130 °F (54 °C) at a depth of 1/64th of an inch (0.4 mm) and is claimed to cause skin pain without lasting ...

7. Microwave cavity - Wikipedia

   en.wikipedia.org/wiki/Microwave_cavity

   A microwave cavity or radio frequency cavity ( RF cavity) is a special type of resonator, consisting of a closed (or largely closed) metal structure that confines electromagnetic fields in the microwave or RF region of the spectrum. The structure is either hollow or filled with dielectric material. The microwaves bounce back and forth between ...