Microwaves are high-frequency electromagnetic waves that are used in modern technology, including point-to-point communication links, wireless networks, microwave radio relay networks, radar, satellite and spacecraft communication, medical diathermy and cancer treatment, remote sensing, radio astronomy, particle accelerators, spectroscopy, industrial heating, collision avoidance systems, garage door openers and keyless entry systems, and for cooking food in microwave ovens.
How Does a Microwave Cook?
A microwave cooks food by energizing the water molecules inside of it, which cause friction and heat. This heat is spread evenly throughout the food and is much less likely to burn it than traditional heating methods, such as a hot plate or a flame.
What Are the Different Types of Microwaves?
Microwave radiation has shorter wavelengths than radio waves, and is therefore more easily absorbed by certain types of matter, such as water. This is why radar uses reflected microwaves, and why cell phones encode sounds into microwaves before sending them to the receiver.
The Energy Rank of Microwaves
Because the emitted microwave energy is non-ionizing, it doesn’t affect your cells in any way. However, if it does get into your tissue and could be absorbed by the cell wall or other components, that would cause problems.
Why Does My Food Not Burn?
Your food won’t burn in a microwave because the radiation doesn’t penetrate it very deeply, so it can’t create enough heat to cause damage. Moreover, microwaves are a much smaller power source than other types of heat, so they don’t have the same effect on your body as a fire or hot plate.