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Electromagnetic spectrum
also called .es and has 143 more synonyms

2 more terms with the same name exist. Show the other terms
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  1. The electromagnetic (EM) spectrum is the range of all possible electromagnetic radiation frequencies

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on December 2, 2008
  2. " (usually just spectrum) of an object is the characteristic distribution of electromagnetic radiation from that particular object

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on December 2, 2008
  3. photonic energy

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on December 2, 2008
  4. extends from below the frequencies used for modern radio (at the long-wavelength end) through gamma radiation (at the short-wavelength end), covering wavelengths from thousands of kilometres down to a fraction the size of an atom

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on December 2, 2008
  5. thought that the short wavelength limit is in the vicinity of the Planck length, and the long wavelength limit is the size of the universe itself (see physical cosmology), although in principle the spectrum is infinite and continuous

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on December 2, 2008
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