Thank you DrGreg for the links to the GPS and other evidence material. I shall take a good look at them and see whether I can be convinced. Regardless whatever may be the outcome, my scope of view will no doubt become wider.
My thanks also go to everybody else who have taken part in this...
I became a non-believer after reading a lot about SR, not as a matter of faith. The reason for my taking part here was to test my belief. So far all your arguments have not persuded me to change my stand.
My disbelief became stronger as I continued finding that you were contradicting...
Okay, I am really sorry for all the mess. Please forgive me as you would do some other slow students. As to the GPS, I do not know a lot. It seemed there is plenty of information available on the internet. Just tell me how time dilation is applied to GPS because I have not found any (on the...
I did read your recent posts but I am sorry I could not understand them. Currently DrGreg was trying to prove that time dilation is genuine, while I was trying to show his proof was flawed. Flawed or not, I believe we cannot use time dilation to justify an experiment designed to prove time...
It was the same message regardless which table we follow. In tables in post #103, you used numbers different from post #68. These numbers were more likely to be misinterpreted by me, not less. If you don't mind, I suggest simpler numbers such as 0 minutes to begin with. At 60 minutes, Alice...
I felt your "desk" simile was supportive to my dissenting voice. If we apply this simile to DrGreg's demonstration, we saw its flaw clearly. That is, regardless how Alice perceived (or determined, or calculated), her perception cannot change the properties of Bob's clock; our perception of our...
I took your words above to mean, Alice's determination had been executed by Bob's clock. For example, at her time 13:10 (post #68), Alice determined that Bob's clock should read 12:15. As soon as she made such a determination, Bob's clock obeyed and executed 12:15. Since her determination...
My instantaneity charge referred to DrGreg's demonstration only. For example, in post #68, Alice started her return trip and applied the 3/2 rate. When Alice's clock accumulated 10 minutes (showing 13:10), the application of the 3/2 rate made Bob's clock to accumulate 15 minutes (showing...
Sorry, your responses were making the dilation idea less and less credible. Here you said "she decelerated". What does it mean? When did she begin her deceleration? And "she sped off", what does it mean? Did she also speed off when she started her journey from Bob? All your words meant (to...
Your words made us to think that Einstein's theory was like a child's play. Unless we sit clocks together, we would not know their difference. But DrGreg's demonstration showed quite the opposite. It showed that we became aware of the difference between the two clocks even if the clocks, Bob...
I agree that moving and accelerating are not the same thing. But according to my understanding of Einstein's theory, it is the relative uniform motion that is causing time dilation. From the viewpoint of the observers on the railway station, time dilation will happen on the train; from the...
As we could see from post #142, I was not alone in understanding the twin paradox in the way I did, that is, either twin can be considered as moving. Even Einstein said so: the railway station moves to the train or the train moves toward the station.
I have brought up my doubts about the...
JesseM, there is no problem for me to accept that "the math works out so it's always the one that accelerated that shows less total time." My point here was how do we determine who accelerated. In DrGreg's demonstration, a third observer Ted created the impression that Alice was the only one...
In the last few days I went back to my former posts and realized that I had more mistakes than I admitted. I truly believe there is something preventing me from learning a high science such as the Relativity. I am going to do more reading and try harder.
In the meantime I still wish to say...