Flat Universe possess an edge?

  • Thread starter pivoxa15
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  • #1
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I have read from Universe by Freedman, Kaufmann that our universe is largly flat so it would mean there are edges in our universe. Our universe would be like a flat piece of paper that is continually expanding. A more realistic picture might be a diagram of Einstien's fabric of space time which is a flat sheet with spheres of planets sitting on it. But from the same source they stated that the universe does not possess an edge. I can see that a spherical universe would not possess an edge but how does a flat thing not have an edge?
 

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  • #2
EL
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pivoxa15 said:
I can see that a spherical universe would not possess an edge but how does a flat thing not have an edge?

If it's infinite!
 
  • #3
Labguy
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Last edited by a moderator:
  • #4
Chronos
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Agreed, Labguy. 'Flat' merely means the unverse has no 'edges' that can 'curl' back. It has nothing to do with whether or not the universe is temporally or spatially infinite.
 

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