Tag: The Universe in a Box
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The Universe is (Mostly) Flat!
The story so far: The universe looks pretty much the same close by as far away, whichever direction we look. (The technical terms are homogeneous and isotropic.) That means we can break the universe up into relatively small cubes and study one box as a stand-in for the entire cosmos. The contents of the box…
Galileo's Pendulum 