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doit_the_clown doit_the_clown
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7 years ago
What kind of curvature (geometry of space) does the universe have if the universe is open?
   A)  Hyperbolic    B)  Parabolic    C)  Spherical    D)  Flat
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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discovererdiscoverer
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7 years ago
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7 years ago
Smart ... Thanks!
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Yesterday
Thanks for your help!!
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2 hours ago
Brilliant
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