World Science Scholars

4.6 The Shape of the Universe

discussion Discussion
Viewing 2 reply threads
    • Einstein showed with General Relativity that the universe doesn’t necessarily need to be a “flat” geometry. But when you hear the word “flat,” you might think of a sort of pancake shape. Is that what Professor Guth means about the shape of our universe? What does it mean to be “flat,” geometrically? How can we know for sure if our universe is “flat”? How would we know if it were some other non-Euclidean geometry?

    • measuring an expansion of a flat shape would be linear vs measurement of a non-flat shape, especially once more than 3 dimensions are considered

    • We can probably measure the historical change of acceleration of the visible universe.

You must be logged in to reply to this discussion.

Send this to a friend