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Brocken Spectre
Weather Online.co.uk – 3/14/13
The Brocken spectre (or Brocken bow) is an apparently greatly magnified shadow of an observer cast against mist or cloud below the level of a summit or ridge and surrounded by rainbow coloured fringes resulting from the diffraction of light. The effect is an illusion. Depth perception is altered by the mist, causing the shadow to appear more distant and to be interpreted as larger than normally expected.
Actually the Brocken Spectre is what meteorologists call a glory. Most air travellers have already observed glories. They are most easily seen when one is riding on the shadow side of an aircraft above the clouds.
For more detais click: Brocken Spectre
2013-03-14 20:03:01
Source: http://soundofheart.org/galacticfreepress/content/brocken-spectre
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