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Electromagnetic Radiation

  1. Oct 22, 2007 #1
    Would the night sky appear dark if our eyes were sensitive to electromagnetic radiation with wavelength around 2 mm? Why or why not?
  2. jcsd
  3. Oct 22, 2007 #2


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    Thats the peak of the microwave background - so where ever you looked you would be seeing uwave background. Depends how sensitive your uwave eyes are!
    Incidently the sky is fairly transparent at 2mm.
    Last edited: Oct 22, 2007
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