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Mystery Rainbow???

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  • Jahnets
    Click link to see rainbow http://www.spaceweather.com/ MYSTERY RAINBOW: What does it take to make a rainbow? Two things: raindrops and sunlight. Raindrops act
    Message 1 of 1 , Oct 2, 2005
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      Click link to see rainbow


      http://www.spaceweather.com/



      MYSTERY RAINBOW: What does it take to make a rainbow? Two things: raindrops
      and sunlight. Raindrops act like tiny prisms
      <http://www.sundog.clara.co.uk/rainbows/primrays.htm>, catching sunbeams and
      splitting them into their primary colors.
      On Sept. 26, Bruno Nolf <mailto:nolf.bruno2@...> of Belgium observed
      something strange: a rainbow with no sun and no rain. "It was a very strange
      rainbow," says Nolf, who snapped this picture:
      "This red rainbow <http://www.sundog.clara.co.uk/rainbows/redbow.htm> is a
      mystery because the sun had set four minutes earlier and was well below the
      horizon," says atmospheric optics expert Les Cowley
      <http://www.sundog.clara.co.uk/atoptics/phenom.htm>. "Furthermore, according
      to Nolf, there was no rain falling and none visible on local weather radar!"

      Cowley and colleague Gunther Konnen, a meteorologist, may have an
      explanation: Thousands of feet above Nolf, the sun had not yet set. (Think
      about it: "If your flight has ever taken off shortly after sunset you will
      see the sun rising again as the airplane climbs," notes Cowley.) Somewhere
      off in the distance, they speculate, a mile-high rainstorm that somehow
      evaded the radar caught the reddened rays of the setting sun, producing the
      Bruno's 'bow.



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