What Is Time and How Does It Influence the Universe?

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Discussion Overview

The discussion centers around the concept of time, its nature, and its relationship to the universe. Participants explore various aspects of time, including its relativity, definitions, and implications in physics, particularly in relation to general and special relativity.

Discussion Character

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

Main Points Raised

  • One participant questions the nature of time and its relevance to events in the universe, suggesting a need for clarity on its purpose.
  • Another participant asserts that time is relative and varies based on an object's frame of reference, particularly its velocity, and discusses how different celestial bodies experience time differently.
  • A participant mentions that time appears to slow near massive bodies, referencing general relativity and the relationship between light energy and frequency.
  • One participant states that there is no singular definition of time, proposing that it can be viewed as a fourth dimension in space.
  • Another participant agrees that time is a dimension and serves as a fundamental reference quantity.

Areas of Agreement / Disagreement

Participants express differing views on the definition and nature of time, with some emphasizing its relativity and others focusing on its dimensional aspect. The discussion remains unresolved regarding a unified definition or understanding of time.

Contextual Notes

Participants highlight various assumptions about time's relativity and its dependence on frames of reference, but these assumptions are not fully explored or agreed upon.

bondinthesand
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I don't know if this is in the right forum but i was wondering what is time? Does it have any relativity to the things happening in the universe and if not then what the point of it?(other then to get to the doctors on time)
 
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Time is completely relative. it is different for different thing according to one's frame of reference and frame of reference depends on velocity of object. object with larger velocity has slower time than smaller velocity object. We divide the time according to our solar system, what time Earth takes to complete the one round of sun. and what times it takes to complete one round on its own axis, different planet takes different time according to their size and distance. so they have different values.
On larger scale These values can be totally different, another prediction of general relativity is that time should appear to slower near a massive body like the earth.This is because there is a relation between the energy of light and its frequency (that is, the number of waves of light per second): the greater the energy, the higher frequency.As light travels upward in the earth’s gravitational field, it loses energy, and so its frequency goes down. (This means that the length of time between one wave crest and the next goes up.) To someone high up, it would appear that everything down below was making longer to happen.it means time will always be slower near sun than Earth and slower near Arcturus (large star) and slowest near an Antares(largest star). it means massive galaxies have slower time than lighter one and by Hubble's law, galaxy the farther, it has more velocity if it's velocity is near velocity of light, there will be time difference because of special theory of relativity
(time dilation).
 


There is no particular definition of time...

For the time being : time is a 4th dimension in space.
 


time is a dimension and a fundamental quantity used as a reference.
 

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