Discover the Speed of Our Movement in Relation to the Center of the Universe

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Discussion Overview

The discussion revolves around the concept of a center of the universe and how one might measure movement relative to such a center, if it were to exist. Participants explore theoretical implications, the nature of movement, and the limitations of current understanding in cosmology.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants assert that a fixed center of the universe cannot exist, as movement is always relative to something else, making the idea of an unmoving center nonsensical.
  • Others propose that while the current understanding suggests no center, there remains the possibility of an origin point.
  • One participant argues that if the universe's dimensions are finite, a spatial center must exist, while another counters that this leads to a misunderstanding of geometric properties, suggesting space is curved.
  • Another participant emphasizes that under the assumption of spatial homogeneity, the concept of a center is invalid.
  • A later reply discusses measuring movement relative to the Cosmic Background Radiation, providing a specific speed and direction, while noting the complexity of cosmic motion.
  • One participant humorously references a cultural artifact, suggesting it could provide insight into relative movement, albeit in a limited context.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the existence of a center of the universe, with no consensus reached on the matter. The discussion remains unresolved, with differing interpretations of movement and spatial properties.

Contextual Notes

Limitations include the dependence on definitions of "center" and "movement," as well as unresolved mathematical and conceptual implications regarding the nature of the universe's dimensions.

wetwonder
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If there was a center of the universe, unmoving, how fast would we (person on the Earth) be moving relative to it?
 
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But there isn't a center of the universe.
 
impossible for such a thing to exist
(an unmoving center point of the universe)speed of movement is always relative to something else so as we move in relation to a point so does that point move in relation to us so the centre would be moving (in relation to us) if there was a fixed center which there is not

wherever you are is the center (from your viewpoint) and you cannot escape that viewpoint no matter where you go

if there was only one quanta in the universe it would not be possible for it to have speed or movement as there would be nothing to measure its movement against

you have asked a non question

that is my opinion
 
Our visibility of the universe is limited to the light that has reached us, for now the idea that there is no center is the most prominent, nevertheless there is the possibility that there might be an origin point.
 
If the dimensions of the universe are finite/un-countably finite than there must be a spatial center. If not, than the dimensions of the universe would be infinite.
 
Not true. Geometrically, it just means that space is curved like a racetrack. Go far enough in one direction and you end up back where you started.
 
That makes absolutely no sense. First of all, in GR, the dimensionality of space-time solutions (as a manifold) is 4. The universe itself (the spatial slices) is of dimension 3. It is nonsensical to call a dimension countably finite or uncountable as this applies to sets not single numbers. There is no center of the universe under the assumption of spatial homogeneity, simple as that.
 
ah yes thx
 
  • #10
wetwonder said:
If there was a center of the universe, unmoving, how fast would we (person on the Earth) be moving relative to it?
As noted, we can't determine our speed relative to something that does not exist. But we can measure it relative to the Cosmic Background Radiation afterglow of the Big Bang. About near 400 km/sec (800,000 mph) or over 0.1% the speed of light, according to reliable sources, in the direction of the constellation Leo and towards the Great Attractor (q.v.) as we rotate about Earth's center, which rotates about the sun, which rotates about the Milky Way's Black Hole center, which rotates about the Local Group. Lot's of spinning and movement going on. And yet on a calm day, nary a leaf is swaying...it's all so relative, you know...
 
  • #11
wetwonder said:
If there was a center of the universe, unmoving, how fast would we (person on the Earth) be moving relative to it?

get a copy of Monty Python's Meaning of life and listen to the "Universe Song" That will tell you how fast we are moving relative to a lot of different places - and one is named "Galactic central Point". That might satisfy, but it is only the centre of our galaxy, not the whole universe.
 

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