On Wed, Jan 29, 2020 at 10:21 PM Alan Grayson <[email protected]> wrote:
*> If we have two clocks at the distant galaxy; some observer's clock which > is running slower compared to a local clock in this galaxy, and the CMBR > clocks at every location in the universe which are synchronized, what is > the status of time dilation? Do it exist or not?* It does. Regardless of what the measured temperature of the CMBR is if you're moving relative to your twin brother then you will observe that his local clock is running slower than your local clock and he will observe that your local clock is running slower than his local clock. And it's not just clocks that are affected, minds are too. You will see that it takes your brother longer to solve a long division problem than it takes you and he will observe that it takes you longer to solve it than it takes him. And none of this has anything to do with the temperature of the CMBR, the only important thing that affects local clocks is the relative motion between you and your twin brother. The reason this is odd but not a paradox is because of the relativity of simultaneity which Dr. Don Lincoln made clear in the 3 videos I recommended yesterday which you obviously didn't watch. If you're still interested Wikipedia has a rather good article on the subject: Relativity of simultaneity <https://en.wikipedia.org/wiki/Relativity_of_simultaneity> And I'll recommend yet another video although I doubt your attention span is long enough to watch all of it, it is after all nearly 4 minutes long: Relativity of Simultaneity | Special Relativity Ch. 4 <https://www.youtube.com/watch?v=SrNVsfkGW-0> Or just ask Google to search for "Simultaneity" and have your pick of lots of good articles and videos. John K Clark -- 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 on the web visit https://groups.google.com/d/msgid/everything-list/CAJPayv2T7NamV3WdBguJF-hQCpd%2BhiYvCG%2BLsZqiKXorBO8veQ%40mail.gmail.com.
