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dbpedia:Visible_spectrum
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The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 390 to 700 nm. In terms of frequency, this corresponds to a band in the vicinity of 430–770 THz.The spectrum does not, however, contain all the colors that the human eyes and brain can distinguish.
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dbpedia:Color_vision
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