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Why are backlit objects bright?

  1. Dec 7, 2015 #1
    Why are tiny objects, such as floating dust in the air, so bright when they are lit from behind and not at all bright when they are lit from the front?
  2. jcsd
  3. Dec 7, 2015 #2


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    2017 Award

    really ?
    I generally find that silhouetted objects to be very dark - black
    and I make use of that feature when doing photography

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