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doit_the_clown doit_the_clown
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7 years ago
What effect in the Earth's atmosphere causes the "twinkling" or seeing effects upon the image of an astronomical source?

(a)   Refraction of light by blobs of air of differing density.
(b)   Reflection of the light out of the beam by irregularities of air density in the atmosphere.
(c)   Scattering of light in and out of the beam by dust particles and air molecules.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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7 years ago
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7 years ago
Good timing, thanks!
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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2 hours ago
Brilliant
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