The electromagnetic spectrum represents the range of frequencies of electromagnetic frequencies with the corresponding wavelengths. The order in increasing frequency is radio, microwave, infrared, visible, ultraviolet, x-ray, and gamma ray. Radio waves capture waves by nearby radio stations to produce tunes through radio speakers. Microwaves are slightly higher in wave frequency and are emitted in kitchen microwaves for heating purposes. Waves that capture heat from either objects or animals can be seen with infrared. The visible waves are the only waves humans are able to see with the naked eye, which includes all the lights and colors produced. Ultraviolet waves are strictly emitted from the sun and can cause sunburns and tans with prolonged exposure. Lastly, x-rays and gamma rays are used in the medical field and for security purposes to take scans of the body or objects. X-rays consist of x-rays of teeth and scanning images of baggages at the airport. On the other hand, gamma rays are more powerful and hence more dangerous so they are highly regulated for precaution. Gamma rays are used to treat cancer for certain patients to kill cancerous cells in the body. The electromagnetic spectrum explains what humans visualize in the universe and further explain images taken and studied by machines that measure the range of waves.
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