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flat universe

Cultural  
  1. If there is just enough matter in the universe for its gravitational force to bring the expansion associated with the big bang to a stop in an infinitely long time, the universe is said to be flat. The flat universe is the dividing line between an open universe and a closed universe.


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Most theorists believe that the universe is flat.

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We refer to this as a flat universe, and the kind of Euclidean geometry you learned in high school applies in this type of universe.

From Textbooks Oct. 13, 2016

In fact, since general relativity implies that matter creates the space in which it exists, there is a special symmetry to a flat universe.

From Textbooks Aug. 12, 2015

Facebook — this artificial, flat universe of human relationships — is not the place where I want to start anew.

From Salon Jun. 15, 2012

It is not to stand on a tower And see the flat universe reel; Our mortal sublimities drop Like raiment by glisterlings worn, At a sweep of the scythe for the crop.

From Poems — Volume 2 by Meredith, George

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