Timeline for How does the speed of light being measured by an observer, who is in motion, remain constant?
Current License: CC BY-SA 4.0
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| Dec 14, 2021 at 11:54 | comment | added | pro100tom | Also what does "opposite velocities relative to any observer whose worldline is vertical on the diagram" mean? Geometrically I can see this. But what would be the velocity of the observer with the vertical worldline? And what does "opposite velocities" mean in reality? | |
| Dec 14, 2021 at 11:45 | comment | added | pro100tom | I really like your explanation, however I curious why the event D that is simultaneous to the event C is so "ahead" in comparison to the the A and B pair? Does it mean that the smaller the angle between the direction of the clock and the beam, the more "ahead" the event will be perceived as simultaneous? Or is rather something to do with the speeds at which clocks move? | |
| Dec 12, 2021 at 22:58 | comment | added | user12262 | Andrew Steane: "I added some remarks [...]" -- Well -- too bad you didn't change your figure: to add representations of additional material points (in order to point out pairs which are at rest wrt. each other, to which a specific value of distance could be attributed) and to denote all of them by capital letters (following the OP convention). (And a real shame that the available MathJax version doesn't seem to support "pstricks"-commands ...) To be fair, I should post here an answer of my own; and I intend to, hopefully within the next few days (although likely without any figure). | |
| Dec 10, 2021 at 23:57 | comment | added | Andrew Steane | @user12262 I added some remarks to address this. | |
| Dec 10, 2021 at 23:56 | history | edited | Andrew Steane | CC BY-SA 4.0 |
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| Dec 10, 2021 at 8:08 | comment | added | user12262 | Andrew Steane: "I will present a spacetime diagram and explain what it shows. You will have to trust that I have constructed it correctly." -- That's fair warning but ... "[...] The main thing to note is that the lines AB and CD have the same length." --... Better to specify how to measure "length" at all, of lines in your diagramm, as well as in general. Also, the OP introduced capital letters "A", "B" ... as names of "(material) points". We should stick to this convention. (In order to identify and denote individual events, we can name their respectve coinciding participants.) | |
| Dec 9, 2021 at 18:24 | history | answered | Andrew Steane | CC BY-SA 4.0 |