Electromagnetic Spectrum
The electromagnetic spectrum is the entire range of electromagnetic radiation, from low-frequency radio waves to high-frequency gamma rays, which travels at the speed of light and carries energy through space. This spectrum forms the backbone of modern communication and imaging technologies, with different portions like microwaves and X-rays serving specialized roles in everyday life and scientific discovery.
Did you know?
The visible light that humans can see occupies only about 0.0035% of the entire electromagnetic spectrum, meaning most of it—including radio waves and X-rays—remains invisible to our eyes. This vast, unseen portion has enabled incredible feats, like the Voyager 1 spacecraft, which has been sending signals from over 15 billion miles away using radio waves from the spectrum.
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