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Microwave-oven-science, however, it is still unclear how the heat is distributed throughout the food being subjected to the waves. microwaves are extremely adept at exciting and vibrating water molecules, and since food is mostly water, the vigorous motion of the molecules creates intermolecular friction, which generates the heat to cook the food item.. A microwave oven is an appliance that cooks or warms up food using microwaves produced by an electronic vacuum tube called a magnetron. the magnetron converts electricity to electromagnetic radiation (the microwaves), which is made up of waves of electric and magnetic energy., a microwave oven works by passing microwave radiation, usually at a frequency of 2450 mhz (a wavelength of 12.24 cm), through the food. water, fat, and sugar molecules in the food absorb energy ....

The microwave oven had its origins in radar research before and during world war ii. as part of this research, engineers at raytheon in the us built a large magnetron, a device that generates..., science in a microwave oven the words “science experiment” and “microwave oven” don’t necessarily go hand in hand… unless you’re trying to do something amazing.. A microwave oven (commonly referred to as a microwave) is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. this induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating.microwave ovens heat foods quickly and efficiently because excitation is fairly uniform in the ..., microwaves are a portion or "band" found at the higher frequency end of the radio spectrum, but they are commonly distinguished from radio waves because of the technologies used to access them. different wavelengths of microwaves (grouped into "sub-bands") provide different information to scientists. medium-length (c-band) microwaves penetrate ....

Microwave ovens have been a kitchen staple for decades, allowing you to cook everything from frozen vegetables to packaged meals in minutes. but while you zap your food, you may wonder how close ..., microwaves are a type of electromagnetic radiation, as are radio waves, ultraviolet radiation, x-rays and gamma-rays. microwaves have a range of applications, including communications, radar and ....

Every microwave oven contains a magnetron, a tube in which electrons are affected by magnetic and electric fields in such a way as to produce micro wavelength radiation at about 2450 mega hertz (mhz) or 2.45 giga hertz (ghz). this microwave radiation interacts with the molecules in food.


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