COM of Universe: Does it Mean Anything?

  • B
  • Thread starter jha192001
  • Start date
  • Tags
    Cosmos
In summary, the term "center of mass of the universe" does not have any meaningful or relevant definition in standard cosmology due to the assumption of homogeneity and isotropy. Additionally, for something to have a center of mass, it must have a physical center, which the universe does not have. The concept of a geometrical center also does not apply to the universe. Further information can be found in the link provided in the signature.
  • #1
jha192001
22
2
Does the term center of mass of universe mean anything? Why why not?
 
Physics news on Phys.org
  • #2
jha192001 said:
Does the term center of mass of universe mean anything? Why why not?
No, for something to have a center of mass, it has to have a center and the universe does not.

I recommend the link in my signature
 
  • #3
phinds said:
No, for something to have a center of mass, it has to have a center and the universe does not.

I recommend the link in my signature
What do you mean by centre? does every body has a geometrical centre what does geometrical centre even mean?
 
Last edited by a moderator:
  • #5
jha192001 said:
Does the term center of mass of universe mean anything? Why why not?
Not in standard cosmology. The standard cosmology assumes that the universe is spatially homogenous and isotropic. The homogeneity precludes having a center.
 

1. What is the COM of the Universe?

The COM (center of mass) of the Universe refers to the point at which all the matter in the Universe is evenly distributed, and there is no net gravitational force acting on it.

2. Does the COM of the Universe have a specific location?

No, the COM of the Universe does not have a specific location as it is constantly changing due to the movement of galaxies and other celestial bodies.

3. How is the COM of the Universe calculated?

The COM of the Universe is calculated by taking into account the mass and distance of all the visible matter in the Universe. This is a complex calculation that requires advanced mathematical and astronomical techniques.

4. Why is the COM of the Universe important?

The COM of the Universe is important as it helps us understand the structure and evolution of the Universe. By studying the movement and distribution of matter, scientists can gain insights into the formation and behavior of galaxies and other celestial objects.

5. Can the COM of the Universe change?

Yes, the COM of the Universe can change over time as the distribution of matter in the Universe shifts. This can be caused by various factors such as the expansion of the Universe, the merging of galaxies, and the influence of dark matter.

Similar threads

Replies
7
Views
2K
  • Other Physics Topics
3
Replies
79
Views
6K
  • Other Physics Topics
Replies
2
Views
1K
  • Astronomy and Astrophysics
Replies
2
Views
779
Replies
9
Views
700
Replies
41
Views
4K
  • Other Physics Topics
Replies
1
Views
2K
Replies
1
Views
574
  • Other Physics Topics
Replies
6
Views
2K
  • Other Physics Topics
Replies
16
Views
2K
Back
Top