What are facts about microwaves?

1 answer

1042168

2026-04-27 09:25

They are radio waves
Their wavelengths range from 3,000 to 30,000 MHz
Their wavelengths can be measured in centimeters
They are good for transmitting information because they can penetrate haze and smoke
Radar works by reading microwave reflections
There is a cosmic microwave background radiation filling the universe - it is thought to be left over from the Big Bang
In 1946 Dr. Percy Spencer discovered that microwaves could heat anything with water in it
Microwave ovens use a magnetron to create the microwaves

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