On Saturday, September 6, 2025 at 12:16:21 PM UTC-6 John Clark wrote:
On Sat, Sep 6, 2025 at 11:01 AM Alan Grayson <[email protected]> wrote: *>>Start with this video: * *I Never Understood How To Intuitively Solve The Twin's Paradox ... Until Now!* <https://www.youtube.com/watch?v=3V00tAfcHCI> *> I've encountered that fellow before. He speaks too fast, * *Try it again. Any YouTube video can be slowed down or sped up with no change in pitch with just a few clicks of a mouse button, and he provides the clearest explanation of how to resolve the twin paradox that I know of, so if he can't give you an intuitive understanding of it then I'm not going to be able to either. * *> It seems to me that GR solves the problem,* *You need to have a good feel for Special Relativity before you jump to General Relativity because it is far more complex and even less intuitive. * While GR isn't the most intuitive way to resolve the TP, it just relies on the results of GR and recognition of lack of symmetry. The TP can also be resolved using SR by imaging the traveling twin moves in a circle so as to return, and imaging a polygon inscribed within that circle, and calculating the time contraction along each leg as seen from the rest frame. Then, like in calculus, partitioning the path infinitely, with the resultant path exactly circular, the reason being I don't know what happens to time when going from one leg to another, when there are only finitely many paths. (Actually, circular motion isn't necessary but can be used for convenience.) So, in summary, I see the TP solved using SR or GR. Do you see any flaws in either approach? AG *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* wl -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/1a194136-56d0-4bdd-9d55-79ef9f797fe3n%40googlegroups.com.
