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Tsync Tsync
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Posts: 3450
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8 years ago
Compared to optical telescopes, radio telescopes are built large because:
A) radio sources are harder to find.
B) radio photons don't carry much energy.
C) they're less expensive to make than optical telescopes.
D) radio waves are absorbed by the atmosphere.
E) atmospheric turbulence is more of a problem.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 321 times
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
wrote...
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
wrote...
8 years ago
Cool Smiling Face with Open Mouth
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