White Hole in Universe: Is the Center Expanding?

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Discussion Overview

The discussion revolves around the concept of white holes in the universe and whether the center of the universe can be considered a white hole, particularly in the context of the expanding universe. Participants explore theoretical implications and the nature of cosmic expansion.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant proposes that the center of the universe could be a white hole, suggesting that it expels matter radially, which they equate with the concept of an expanding universe.
  • Another participant strongly disagrees, stating that white holes are mathematical constructs and asserting that there is no defined "center" to the universe.
  • A later reply challenges the initial assertion about the center, stating simply, "It isn't. We aren't," implying a rejection of the notion that we are moving away from a center.
  • Another participant counters the claim that white holes are not believed to exist, referencing Hawking radiation and holography, suggesting that the distinction between black holes and white holes is more complex than commonly understood.

Areas of Agreement / Disagreement

Participants express significant disagreement regarding the existence and implications of white holes, as well as the concept of a center of the universe. No consensus is reached on these points.

Contextual Notes

Limitations include the reliance on theoretical constructs and the lack of empirical evidence for white holes. The discussion also reflects differing interpretations of cosmological models and the nature of the universe's expansion.

nil1996
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white hole in universe!

isn't the center of universe a white hole?( i think)As the center of universe is throwing matter radially(if it is a white hole) outwards at high speed,we are moving away from the centre.This is nothing but the term "expanding universe".
does this make sense?

thanks.
 
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nil1996 said:
isn't the center of universe a white hole?( i think)As the center of universe is throwing matter radially(if it is a white hole) outwards at high speed,we are moving away from the centre.This is nothing but the term "expanding universe".
does this make sense?

thanks.

No, this makes NO sense at all.

1) White holes are a mathematical construct that are not really believed to exist in the real world
2) There IS no "center" to the universe
 
nil1996 said:
isAs the center of universe is throwing matter radially(if it is a white hole) outwards at high speed,

we are moving away from the centre.

thanks.


It isn't.

We aren't.
 
phinds said:
No, this makes NO sense at all.

1) White holes are a mathematical construct that are not really believed to exist in the real world

Actually, this is not quite true. If you believe in Hawking radiation and holography (and most scientists who work in gravitation do) this statement is altered from the classical picture. It turns out that white holes and black holes become much harder to distinguish.

See the following famous paper by Hawking:

http://prd.aps.org/abstract/PRD/v13/i2/p191_1
 

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