High School COM of Universe: Does it Mean Anything?

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The term "center of mass of the universe" is deemed meaningless because the universe lacks a defined center. For a center of mass to exist, there must be a central point, which contradicts the universe's spatially homogeneous and isotropic nature. Discussions highlight that standard cosmology does not support the concept of a center due to this homogeneity. Questions arise about the meaning of "center" and "geometrical center," but these do not alter the fundamental cosmological principles. Ultimately, the consensus is that the universe does not possess a center of mass.
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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.

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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.
 
I do not have a good working knowledge of physics yet. I tried to piece this together but after researching this, I couldn’t figure out the correct laws of physics to combine to develop a formula to answer this question. Ex. 1 - A moving object impacts a static object at a constant velocity. Ex. 2 - A moving object impacts a static object at the same velocity but is accelerating at the moment of impact. Assuming the mass of the objects is the same and the velocity at the moment of impact...

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