This is a theoretical model of the universe.
A Friedman Universe can have positive, zero or negative curvature. If the curvature is positive then the universe is closed and curved. A light ray going in any direction would make a complete circuit if the universe and return to the starting point.
If the universe has zero or negative curvature it is open and unbounded and said to be flat. A light ray would travel in a 'straight' line and not return to its point of origin.
The universe isn't flat. It is 3-Dimensional time and space. Galaxies are depicted as being donut shaped and flat
Mathematically, it's called an "open" universe. As best we can tell as of now, our Universe is open.
Yes, the monastery in Lego Universe is now open.
Flat
lego universe is the best game open it now
it is already open till infinity extent and is still opening!
E flat first, F open, G first and second, A second, B flat open, C first, D open, High E flat First
E flat first, F open, G first and second, A second, B flat open, C first, D open, High E flat First
There are three "simple types:* Closed: Is where there is sufficient gravity to halt the expansion of the universe, after which is slowly starts to contract until "The Big Crunch". * Open: Is where there is insufficient gravity to halt the expansion of the universe and it continues expanding and accelerating until it reaches either "the big freeze" or "big rip". * Flat: Is where there is insufficient gravity to halt the expansion of the universe and it continues to expand but slowly, ending the same as the open universe scenario.See link for further information.
sjkhc B flat (1) C (open) D flat (1,2,3) E flat (2,3) F (1) G (open) A flat (2,3)
It is the idea that the universe will continue to expand forever. By contrast, the closed theory states that gravity will eventually cause the universe to shrink. (I think) In addition to the above. Essentially it is the theory that the universe has no boundary and is not closed in on itself in any way. The shape of the universe in this case must be either "flat" or "curved" to some extent, but not curved enough to form a cylinder, sphere, ellipsoid or torus.
Nothing in the Universe is as large as the Earth AND flat. If the Earth were flat, it would be the only flat object, other than some small asteroids.