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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. Water dispenser - Wikipedia

   en.wikipedia.org/wiki/Water_dispenser

   Water dispenser. A water dispenser, sometimes referred to as a water cooler (if used for cooling only), is a machine that dispenses and often also cools or heats up water with a refrigeration unit. It is commonly located near the restroom due to closer access to plumbing. A drain line is also provided from the water cooler into the sewer system.

4. Oven - Wikipedia

   en.wikipedia.org/wiki/Oven

   By 1947, the first commercial microwave was in use in Boston, Massachusetts. [19] Wall oven Wall ovens make it easier to work with large roasting pans and Dutch ovens. A width is typically 24, 27, or 30 inches. Mounted at waist or eye level, a wall oven eliminates bending. However, it can be nested under a countertop to save space.

5. Is it safe to stand in front of a microwave while it's on ...

   www.aol.com/lifestyle/safe-stand-front-microwave...

   Microwave ovens operate by emitting electromagnetic waves, particularly microwaves, which interact with water molecules in the food. These microwaves cause the water molecules to oscillate rapidly ...

6. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   Water heaters that instantly heat water as it flows through the device. The inside of a hydraulically operated two-stage tankless heater, heated by single-phase electric power. The copper tank contains heating elements with 7.2 kW maximum power. Tankless water heaters — also called instantaneous, continuous flow, inline, flash, on-demand, or ...

7. Microwave transmission - Wikipedia

   en.wikipedia.org/wiki/Microwave_transmission

   Microwave transmission is the transmission of information by electromagnetic waves with wavelengths in the microwave frequency range of 300 MHz to 300 GHz (1 m - 1 mm wavelength) of the electromagnetic spectrum. Microwave signals are normally limited to the line of sight, so long-distance transmission using these signals requires a series of ...