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The result was the egg exploding in the face of one of his co-workers, who was looking in the kettle to observe. Spencer then created the first true microwave oven by attaching a high-density electromagnetic field generator to an enclosed metal box. The magnetron emitted microwaves into the metal box blocking any escape and allowing for ...
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 (heat) in a process known as dielectric heating .
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, just a year after Spencer’s snack food serendipity, the first commercial microwave oven hit the market. Called the “Radarange,” it weighed nearly 750 pounds and cost more than $2,000 .
Randall collaborated with Harry Boot, and they produced a valve that could spit out pulses of microwave radio energy on a wavelength of 10 cm. [3] On the significance of their invention, Professor of military history at the University of Victoria in British Columbia, David Zimmerman, states: "The magnetron remains the essential radio tube for ...
Avoid heavy-duty oven cleaners, bleach, and other abrasive chemical solutions, which could damage the microwave's interior. You can tackle just about any microwave mess with natural ingredients ...
Before cleaning your microwave filters, you always want to make sure that your microwave is unplugged. Additionally, it might be a good idea to wear rubber gloves if you plan on using any abrasive ...
Easy-Off – an oven cleaner invented by Herbert McCool in Regina in 1932; Egg carton – invented by Joseph Coyle of Smithers, British Columbia, in 1911; Electric cooking range – invented by Thomas Ahearn in 1882; Garbage bag – invented by Harry Wasylyk in 1950 [18]
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