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doit_the_clown doit_the_clown
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7 years ago
What causes plages?
A)   Compression and heating of chromospheric gas by magnetic fields
B)   Blobs of convecting gas rising through the photosphere and depositing their energy in the chromosphere
C)   Matter descending along loops of magnetic field in the corona
D)   Sunspots, which prevent heat from reaching the chromospheric gases above them, leading to cooler plage regions
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Discovering the Universe

Discovering the Universe


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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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doit_the_clown Author
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