So familiar with the term universe, but ever wondered about the shape of it?
The shape of the universe, is the geometry of the universe. The geometry can be broadly divided as i)local geometry, and ii)global geometry.
We make it clear, that universe, when talked of, can mean the observable universe, and the global universe. The local universe, is particularly the global universe. We don't know if the observable universe, is the global universe.
The observable universe,that is related to the curvature, as said earlier, can be explained by, the FLRW Model, which states, in layman terms that, if dark matter(will be explained in future posts) is ignored, the curvature can be determined from the average density of the universe, assuming matter is evenly distributed.
for more information, I'll leave the link for FLRW here-
https://en.wikipedia.org/wiki/Friedmann–Lemaître–Robertson–Walker_metric
Well things aren't that straight-forward with global universe, there are questions, intriguing ones.
Is the universe finite, or infinite?
Is there a boundary, if yes, what is beyond that?
The finiteness of the universe is unanswered till now. The boundary, yeah, is unresolved. The universe may have an edge, maybe not.
This is an interesting topic, well, all topics about our universe, are. Many areas are yet to be covered. These complexities of universe inspire us to learn more about it and fascinated us to start this blog sharing our views on universe.
For a mathematical approach to the shape, you can check the book - https://en.wikipedia.org/wiki/Our_Mathematical_Universe
Yeah, you read right. and the universe has a shape. Sounds a little queer, right. To be true, it is strange. It cannot be explained directly by the shapes we know. It is related to general relativity, which describes how spacetime is curved and bent by mass and energy.
The shape of the universe, is the geometry of the universe. The geometry can be broadly divided as i)local geometry, and ii)global geometry.
We make it clear, that universe, when talked of, can mean the observable universe, and the global universe. The local universe, is particularly the global universe. We don't know if the observable universe, is the global universe.
The observable universe,that is related to the curvature, as said earlier, can be explained by, the FLRW Model, which states, in layman terms that, if dark matter(will be explained in future posts) is ignored, the curvature can be determined from the average density of the universe, assuming matter is evenly distributed.
for more information, I'll leave the link for FLRW here-
https://en.wikipedia.org/wiki/Friedmann–Lemaître–Robertson–Walker_metric
Well things aren't that straight-forward with global universe, there are questions, intriguing ones.
Is the universe finite, or infinite?
Is there a boundary, if yes, what is beyond that?
The finiteness of the universe is unanswered till now. The boundary, yeah, is unresolved. The universe may have an edge, maybe not.
This is an interesting topic, well, all topics about our universe, are. Many areas are yet to be covered. These complexities of universe inspire us to learn more about it and fascinated us to start this blog sharing our views on universe.
For a mathematical approach to the shape, you can check the book - https://en.wikipedia.org/wiki/Our_Mathematical_Universe
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