Kumar's Explanation of the Twin Paradox

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    Paradox Twin paradox
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Discussion Overview

The discussion revolves around the "Twin Paradox," a thought experiment in the context of special relativity, exploring its implications and the assumptions underlying it. Participants seek to clarify the paradox and the concept of time dilation, while also questioning the foundational principles of special relativity.

Discussion Character

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

Main Points Raised

  • Sampath initially requests an explanation of the Twin Paradox.
  • One participant suggests searching for existing discussions on the topic before asking broad questions.
  • Sampath questions whether the Twin Paradox can be explained without assuming the laws of physics are the same in all inertial reference frames and the constancy of the speed of light.
  • Another participant argues that the Twin Paradox inherently relies on the principles of special relativity, implying that it cannot be explained without these assumptions.
  • There is a request for a clear explanation of time dilation, including its general formula.
  • A participant provides a detailed explanation of time dilation, describing how a moving clock ticks more slowly than a clock at rest and presenting the formula for time dilation.

Areas of Agreement / Disagreement

Participants express differing views on whether the Twin Paradox can be explained without the assumptions of special relativity. While some assert that it cannot, others explore the possibility of alternative explanations.

Contextual Notes

Some participants' questions and responses highlight the complexity of the Twin Paradox and time dilation, indicating a reliance on specific definitions and assumptions that may not be universally accepted or understood.

sampath_phy
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Guys can anybody explain me the famous "Twin Paradox"
--->Sampath
 
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There have been many discussions of the twin paradox here. Have you tried searching for them?

I think you will be more likely to get helpful results if you first find some explanation/discussion of the twin paradox here or elsewhere on the Web. For example, you might start here:

http://math.ucr.edu/home/baez/physics/Relativity/SR/TwinParadox/twin_paradox.html

After reading it and trying to understand it, ask specific questions.

Most people are more likely to respond to specific, focused questions that they can answer briefly, instead of broad questions that require a whole chapter of a textbook in response. Especially a topic like this one, which has been discussed many times. People get tired of repeating themselves.
 
Last edited:
Thanks for the reply
Sam.
 
Is it possible to explain the twin paradox without assuming that
* The laws of physics are the same in all inertial reference frames
* The speed of light is always the same regardless of reference frame
Please reply
Sampath
 
Is it possible to explain the twin paradox
without assuming that
* The laws of physics are the same in all inertial reference frames
* The speed of light is always the same regardless of reference frame
 
Is it possible to explain the twin paradox
without assuming that
* The laws of physics are the same in all inertial reference frames
* The speed of light is always the same regardless of reference frame
The twin paradox itself makes those assumptions.

So, I have no clue how one could possibly make sense out of your question.
 
Your question is equivalent to "Is it possible to explain the twin paradox without using special relativity?" Without special relativity the twin paradox does not arise at all. Therefore, the answer to your question must be "no".
 
time dilation

please explain clearly
 
time dilation

sylvan said:
please explain clearly
can you explain, what is time dilation? and give it's general formula.
 
  • #10
i get it.
thanks
Sampath.
 
  • #11
sylvan
this is in reply regarding time dilation

Time Dilation ---> A moving clock ticks more slowly than a clock at rest.

Measurements of time intervals are affected by relative motion b/w an observer andwhat is observed. As a result the a clock that moves w.r.t an observer ticks more slowly than it does when it does without such motion and therefore such processes occur more slowly to an observer when they take place in a different inertial frame.

Explanation:-
Consider a time interval of t_0 b/w any two events in a space craft. We on the ground would find that the same interval has a longertime duration t. t_0 is determined by the events that occur at the same place in the observers reference frame , this is called proper time of the interval, but when witnessed from the ground , the events that mark the beginning and the end of the time interval appear longer than the proper time and this is called ' Time Dilation " .

the formula is:
time dilation(t) = t_0/sqrt(1-(v2/c2))
i.e.., t_0 by sqrt of (1-(vsquare/csquare)) .

where
t_0 = time interval on clock at rest relative to an observer = proper time
t = time interval on clock in motion relative to an observer
v = speed of relative motion
c = speed of light

Sampath.
 

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