Speed of light vs speed of time

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Discussion Overview

The discussion revolves around the relationship between the speed of light, time dilation, and gravitational effects, particularly in the context of the twin paradox. Participants explore the implications of these concepts on the constancy of the speed of light and the variability of time.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions how the speed of light can be considered constant if it appears to change in different gravitational fields, suggesting that an observer moving away from gravitational masses might measure a different speed while experiencing time dilation.
  • Another participant asserts that the speed of light in a vacuum is a constant value, emphasizing that different observers will measure the same speed of light regardless of their relative motion or gravitational environment.
  • A participant expresses skepticism about the completeness of current theories, suggesting that there may be more information or factors that have not been considered since the original theories were developed.
  • There is a request for input from reputable sources to further the discussion.

Areas of Agreement / Disagreement

Participants do not reach a consensus; there are competing views regarding the constancy of the speed of light and the interpretation of time dilation in different contexts.

Contextual Notes

The discussion includes assumptions about the nature of time and light that may not be universally accepted. The implications of gravitational effects on the speed of light and time measurement are not fully resolved.

Who May Find This Useful

This discussion may be of interest to those exploring concepts in relativity, the nature of light, and the implications of gravitational effects on time measurement.

markonline
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i submit a question to the physics community.

take the whole twin paradox into account. ok.

now time is relative to speed, and also gravity, yeah.

now in physics we measure the speed of light as a constant though for time it is variable (ultimately due to the effect on us)

electromagnetic waves(which light is also a variance of) have been measured to travel slower passed an object with a large gravitational field.

now if someone is traveling further away from the solar system, invariably getting further away from close proximity of gravitational masses) would he not start traveling a faster measured length of speed while maintaining the time dilation he has created due to accelerating ?
 
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so my question is y have the speed of light as a constant if it does change while having the same amount of time dialation(e.g infinite for electromagnetism)
 
i mmean electromagnetic waves not electromagnetism, I'm on holiday
 
umm... I'm really not sure what you're getting at. But the speed of light (in vacuum) is a constant, 299792458 m/s.
 
I can sort of see what you're trying to ask, but this statement

"now time is relative to speed, and also gravity," is not a good way to say that clocks that are in different gravitational environments, or moving relative to one and other, will show different elapsed times when compared at one place.

Think of the universe as a collection of observers with clocks. Some are on rocks like us, some are in spaceships and so on. If they each do an experiment using their clocks and rulers to measure the speed of light, they will all get the same number ( after converting to a common unit base ). It would not matter if the light used in the experiment came from a local laser or through the lab window from a distant or close star or planet or whatever.
 
i just reckon that it all hasn't been examined using more information that was available than at the time it was theorised. i mean it works reeally well i just believe that there is more to it
 
does anyone reputable have any comments ?
 

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