Twin Paradox: Exploring A's & B's Frame of Time Dilated Age

In summary, the twin paradox is a thought experiment about the effects of time dilation in special relativity. The twin who is actually moving will age slower than the stationary twin, leading to a difference in their ages when they meet again. This is due to the fact that time and space are interconnected and change depending on the observer's frame of reference. However, this effect is not just a matter of perspective, as it has been proven through experiments. The best way to understand this concept is to read more about it in reliable sources such as John Baez's homepage or standard relativity texts.
  • #36
newTonn said:
Could you please give me an explanation of notations used and if possible,a link to derivations.
The notation is explained on the http://math.ucr.edu/home/baez/physics/Relativity/SR/rocket.html page, not sure where you'd find a derivation.
newTonn said:
And please explain me how somebody knows,who is accelerating?
In flat spacetime (no sources of gravity), the accelerating individual will feel G-forces in the direction of acceleration, the inertial individual will feel weightless.
 
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