Twin Paradox & Bondi K-Calculus: Who's Younger?

[Mohammad Fajar]

Bondi K-Calculus very depend on who was send the signal. If two twin A and B make a journey, A send a signal and B receiving the signal then yes after the journey A will see B younger, and this applied too for the case B sending a signal and A reflecting, then after the journey A will younger.

 

[Ibix]

This is wrong. Please post your working in detail and we can work out where you went wrong.

 

[Dale]

If two twin A and B make a journey

You need more details here too

 

[Ibix]

You need more details here too

True. I assumed he was talking about a twin paradox scenario. If there's no return leg then the situation may well be symmetric.

 

[Dale]

Bondi K-Calculus very depend on who was send the signal.

One thing that you need to understand from the outset is that standard approaches are standard for a reason: they work. If you think that you have found a mistake in a standard approach then >99% it is your mistake. Please post accordingly. For example “When I try to use Bondi K-Calculus somehow it seems to depend on who sends the signal”

 

[pervect]

Bondi K-Calculus very depend on who was send the signal. If two twin A and B make a journey, A send a signal and B receiving the signal then yes after the journey A will see B younger, and this applied too for the case B sending a signal and A reflecting, then after the journey A will younger.

Some more details on the scenario are needed. Are you comparing A and B when they are at different locations (travelling away from each other), or are you comparing them when they're both at the same location (which implies that one of them turns around).