Article of the Day:The Electromagnetic Spectrum

Article of the Day:
The Electromagnetic Spectrum

The electromagnetic spectrum is the total range of frequencies or wavelengths of electromagnetic radiation—self-propagating waves of energy that result from the acceleration of electric charges. The spectrum ranges from waves of long wavelength, or low frequency, to those of short wavelength, or high frequency, and includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. In a vacuum, these waves all travel at what speed? More…:


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