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Refraction of sound

  1. Oct 26, 2011 #1
    I am taking a physics class and need to explain why we can hear better at night than during the day.
     
  2. jcsd
  3. Oct 26, 2011 #2
    Uh ... less noise? Hmmm, how about the air is colder and denser and conducts sound better? I've never heard of this claim.
     
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