Gravity has to have an effect on time,when gravity can curve space ,it

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Discussion Overview

The discussion revolves around the relationship between gravity and time, particularly focusing on concepts such as gravitational time dilation, the effects of mass on time perception, and the nature of time as a scalar or vector quantity. Participants explore theoretical implications and mathematical considerations related to these topics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant asserts that gravity must affect time, suggesting that if gravity can curve space, it should also influence the passage of time.
  • Another participant acknowledges gravitational time dilation but notes that it is calculated relative to other objects, such as a spaceship in orbit, and mentions that the effect is minimal for Earth's mass.
  • A question is raised about why the mass of Earth does not cause significant time dilation.
  • A response explains that Earth's mass is insufficient to create a large distortion compared to more massive objects like the Sun.
  • It is proposed that significant time dilation would occur near objects with strong gravitational fields, such as black holes.
  • There is a discussion about whether time should be considered a scalar or vector quantity, with one participant arguing that its directional nature implies it should be a vector.
  • A question is posed regarding the feasibility of determining the volume of the universe using integral calculus with limits approaching infinity.
  • Another participant reiterates the scalar versus vector debate regarding time, suggesting that the specifics of how time operates under different circumstances remain uncertain.
  • A claim is made that a black hole must be a perfect black body, as it absorbs and emits all radiation.

Areas of Agreement / Disagreement

Participants express differing views on the nature of time (scalar vs. vector) and the implications of gravitational effects on time. There is no consensus on these points, and the discussion remains unresolved.

Contextual Notes

Participants acknowledge the limitations in understanding the specifics of time under various circumstances and the challenges in applying mathematical concepts to the universe's volume.

monty37
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gravity has to have an effect on time,when gravity can curve space ,it also
has to influence time,time that has remained unaffected ,or has been continously going forward all these years,from the time humans existed .

gravity has to retard time,even though time could be a 4 dimensional aspect.
 
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I don't see a question anywhere there, but yes, there is gravitational time dilation. Note, though, it is only calculated with respect to something else (say, a spaceship in orbit around earth) and for the mass of the Earth it isn't very much.
 


why is not very much for mass of earth?
 


Earth's mass just isn't enough to cause a big distortion. Consider that sun has more than 300,000 times the mass of the Earth and is a small to medium-sized star.
 


Something that could cause a time dilation would have to be an object like a black hole that exerts a very strong gravitational field
 


will we consider time a scalar or vector quantity,since time does have a direction
it moves forward ,it has to be a vector . time has been looked as a scalar qty in many places.
 


why is it not possible to determine the volume of the universe using integral calculus
taking limits as infinity,roughly what we see around us ?
 


monty37 said:
will we consider time a scalar or vector quantity,since time does have a direction
it moves forward ,it has to be a vector . time has been looked as a scalar qty in many places.

We don't exactly know the specifics of how time works with cercumstances other than what occur naturaly so its possible that it could be one or the other or both.
 


a black hole has to be a perfect black body,as a perfect black
body emits or absorbs all radiations,a black hole does.
 

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