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Mushroom cloud ring

  1. Aug 12, 2010 #1
    What caused the ring around the atomic mushroom in Nagasaki?

  2. jcsd
  3. Aug 12, 2010 #2


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    Staff Emeritus
    Science Advisor

    Clouds. It was a cloudy morning. The explosion propagated radially. Without clouds present, there wouldn't be a semblance of a ring.
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