COM of Universe: Does it Mean Anything?

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SUMMARY

The term "center of mass of the universe" is fundamentally meaningless in standard cosmology. For an entity to possess a center of mass, it must have a defined center, which the universe lacks due to its spatially homogeneous and isotropic nature. This homogeneity directly prevents the existence of a central point. Therefore, discussions around the center of mass in the context of the universe are based on misconceptions of cosmological principles.

PREREQUISITES
  • Understanding of standard cosmology principles
  • Familiarity with spatial homogeneity and isotropy
  • Basic knowledge of the concept of center of mass
  • Awareness of geometric definitions and their implications
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  • Research the implications of spatial homogeneity in cosmology
  • Explore the concept of isotropy in the universe
  • Study the definition and significance of center of mass in physics
  • Investigate geometric centers and their relevance in physical theories
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Astronomers, physicists, cosmologists, and anyone interested in understanding the fundamental principles of the universe's structure and behavior.

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Does the term center of mass of universe mean anything? Why why not?
 
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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.

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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?
 
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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.
 

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