Space/Science » in reply to Astronomy Picture of the Day Challenge

re: Astronomy Picture of the Day Challenge

Jack Herer — 9/14/2004 3:58:50 PM (archived)

It's hard to guess when there is so little known about the conditions of the picture. Is the camera looking down at the ground at noon or against a granite wall in early morning?

It may be related to temperature inversion
with the warm layer full of moisture acting as a convex lens.

"As the warm air rises away from the heated surface, it cools. Sometimes, a layer of air is so cold and dense that it resists the warming effect of the sun and hugs the ground while less dense air above it warms at a faster rate."

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The whole thread (16 posts)

• Astronomy Picture of the Day Challenge - SteveS - 9/14/2004 3:11:40 AM
  • My guess - Fox - 9/14/2004 10:45:50 PM
  • Famous "Specter of the Bracken" (spelling uncertain) - David F Mayer - 9/14/2004 7:28:35 PM
  • re: Astronomy Picture of the Day Challenge - Jack Herer - 9/14/2004 6:47:46 PM
  • My guess - REB - 9/14/2004 4:04:45 PM
  • re: Astronomy Picture of the Day Challenge - Jack Herer - 9/14/2004 3:58:50 PM
  • re: Astronomy Picture of the Day Challenge - alcaray - 9/14/2004 2:58:15 PM
    • Not screaming, but that is incorrect - R.L. - 9/14/2004 4:42:01 PM
      • Never had a class on optics, huh? (n/t) - et - 9/14/2004 4:43:57 PM
        • one class in optics zero in lasers and in astronomy and in engineering - R.L. - 9/14/2004 5:42:54 PM
        • ??? - R.L. - 9/14/2004 5:11:37 PM
  • I will take a shot at it - R.L. - 9/14/2004 5:03:21 AM
    • re: I'm with R.L. - Tom Brosz - 9/14/2004 3:28:14 PM
      • The Glory - SteveS - 9/14/2004 9:17:23 PM
      • on snow and fog too - jms - 9/14/2004 4:53:48 PM
      • Lewin took the above picture in a construction area in Massachusetts on June 20. - et - 9/14/2004 4:42:59 PM