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- Thread starter mtv22
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Hi mtv22, welcome to physics forums!

That's not what is meant by 'flat'---they're using the term to describe higher dimensions (namely 3+1 space-time).

For the http://en.wikipedia.org/wiki/Shape_of_the_universe" [Broken] flat means asymptotically euclidean. Instead of having intrinsic curvature, the universe would be a perfectly flat, rectilinear grid (like you use in Cartesian geometry), where the interior angles of triangles add to 180 degrees, etc etc.

That's not what is meant by 'flat'---they're using the term to describe higher dimensions (namely 3+1 space-time).

For the http://en.wikipedia.org/wiki/Shape_of_the_universe" [Broken] flat means asymptotically euclidean. Instead of having intrinsic curvature, the universe would be a perfectly flat, rectilinear grid (like you use in Cartesian geometry), where the interior angles of triangles add to 180 degrees, etc etc.

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cepheid

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