Ok so u have two twins, both have clocks set to zero.

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    Clocks Set Zero
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Discussion Overview

The discussion revolves around the twin paradox in special relativity, specifically examining the effects of time dilation when twins (or triplets) travel at relativistic speeds. Participants explore the implications of different frames of reference and how they perceive time for each other during their journeys.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions whether two twins traveling in opposite directions at relativistic speeds would have their clocks off by the same amount upon reunion, considering the nature of their motion through spacetime.
  • Another participant asserts that there is no absolute frame of reference in special relativity, suggesting that all motion is relative and thus complicating the measurement of time dilation.
  • A different viewpoint suggests that each twin perceives the other as aging more slowly due to their relative motion, raising questions about the satisfaction of this explanation.
  • A participant introduces a scenario with triplets, where one maintains constant velocity while the others accelerate, leading to different perceived rates of time dilation according to the relativistic addition of velocities.
  • One participant expresses confusion about how two accelerating triplets can each perceive the other as aging slowly when they reunite.

Areas of Agreement / Disagreement

Participants express differing views on the implications of time dilation and the nature of relative motion. There is no consensus on how to interpret the observations made by the twins or triplets, and the discussion remains unresolved regarding the implications of their experiences.

Contextual Notes

Participants highlight the complexity of measuring time dilation due to the lack of an absolute frame of reference and the subjective nature of each twin's or triplet's perspective. The discussion also touches on the effects of acceleration and how it influences the perception of time.

neh4pres
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ok so u have two twins, both have clocks set to zero. One of them takes off at close to the speed of light. That twins clock would run slow. However If the twin were to reset both clocks and take of at the same speed in the opposite direction for the same distance. would the clocks be off by the same amount? The stationary twin can only be stationary compared to another object. So how do we know that he is not flying through spacetime making the two flights time dilate at different rates?
 
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neh4pres said:
So how do we know that he is not flying through spacetime making the two flights time dilate at different rates?

Because there is no 'absolute' preferred frame of reference in SR. That is, there is no form of 'absolute' motion. So you have nothing truly at rest to measure local motion against.
 
I believe that everyone determins his/her coordinate sys stationary and time not delayed... so most likelly 1st twin sees everything that moves (including the other twin slow motion) and just the same 2nd twin sees everything that moves also slow motion

after all if me myself am in my oun coordinate system with my oun light clock I see the light going straight up and straight down so my light ray does travel the shortest possible path

the questions is... is it a satisfactory answere that each twin sees the other growing old slow

in fact is it OK that I see everything that moves growing up slower
 
neh4pres said:
ok so u have two twins, both have clocks set to zero. One of them takes off at close to the speed of light. That twins clock would run slow. However If the twin were to reset both clocks and take of at the same speed in the opposite direction for the same distance. would the clocks be off by the same amount? The stationary twin can only be stationary compared to another object. So how do we know that he is not flying through spacetime making the two flights time dilate at different rates?

Make it triplets and they are all moving at 0.8c relative to you in the positvie direction. Triplet A maintains constant velocity while triplet B accelerates in the positive direction so that triplet A sees triplet B as going at +0.8c relative to him. Triplet C accelerates in the opposite direction so that triplet A sees triplet C as going at -0.8c relative to him. By your measurements using the relatavistic addition equation, triplet A is moving at 0.8c, triplet B is moving at 0.98c and trilet C has stopped! According to you all the triplets are time dilating at different rates. However, to triplet A it would appear as if both triplets B and C are time dilating at the same rate. Hope that answers your question.
 
you understood me kev thx
 
Yec I understand that.
but for me it is a little confusing that B sees C getting old slow. and C sees B getting old slow. when they get back to meet each other?
 

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