Your comment seems that a massless physical object cannot be an observer which can measure other's velocity. I think any physical object including massless photon can measure other velocity. For example, two photon with zero velocity with regard to other will not collide but what the collision...
The link says that the concept for the rest frame of a photon does not make sense and I argue that the rest frame of a photon makes sense as I wrote in #7. I also mentioned that when viewed in the position of second flash which is a single reference frame, the velocity of the first is zero, not c.
Thanks for the link. It gives me one more doubt. In the link, "The rest frame of a photon would require the photon to be at rest (velocity=0) and moving at c(velocity=299792458 m/s). That of course is contradictory. In other words, the concept doesn't make sense."
Hmm. Let's assume that there...
I have a simple question on the relativistic view point with regard to light.
From wiki, "All inertial frames are in a state of constant, rectilinear motion with respect to one another; an accelerometer moving with any of them would detect zero acceleration."
Simply I understand if a physical...
I already guessed your answer but the problem for me is that I cannot accept easily that ##\Delta{x}## is non-zero in frame F. Let me explain more my frustration.
There are two events; First is the emission of light at t=t0 and second is the detection at y=h assuming h is the height of box...
Thank you for reply. So does it mean that the flash of light will be detected at x=v0*(t1-t0) at t1 in frame F? My understanding is the speed of light is constant c and since t=t0, the flash of light have already 100% speed of c along y-axis and no room left for velocity for x direction. If the...
I have a basic question about the trajectory of a photon.
As can be seen in the figure above, let's suppose there is a stationary frame F and a cylinder sealed with two sided mirror is located at the origin of F. Then let's consider two cases; First is the velocity of cylinder is 0 with...
Yes, thank for correcting me. But my understanding is that GR , another theory of relativity supporting only the relativistic nature of time and space is not perfect to describe all behavior around BH so I still think there may be room for doubt.
What if I move the position of a pulsing light slightly from middle to the leading end after considering the velocity of the rod relative to light? In this way, I think it would be possible to get the events of the pulse reaching to two ends be simultaneous measured with regard to my frame.
I...
Sorry if I did something wrong. I did not know there were enough explanations provided and I was thinking to keep asking a new question which is not stated before although the purpose is the one to see the possibility for the existence of absolute time and space.
Thanks for pointing out my misunderstanding in reading Einstein's paper.
But what do you think about another my observations?
"the Einstein’s theory of special relativity seems to be self-contradiction in that he concluded the nonexistence of absolute motion of any matter only after assuming...
My argument is that there is no way we can determine or predict what will happen if we are allowed to use only relative motion of the magnet and the conductor. If the theory cannot predict the future using only its postulates predefined, it can be considered as "incomplete" to me because it will...
Firstly, I would like to express my undoubted respect to the greatness of SR. In fact, I have no doubt about many facts that every experimental result has been exactly matched with what SR predicted. But what puzzles me is that if it is true that one conclusion of SR is that there is no...
Thanks for everyone, thanks for many kind feedbacks.
Although many gave me some kind learning, I still doubt that SR is complete. Even further I believe in the absoluteness of time and space. Yes, you can laugh at me here but give me another chance to try my reasoning if you don't mind.
Let's...
This is just a clarification to fix some confusions. I assumed in my original post that there is neither acceleration nor change in the direction in the thought experiment and they are separated from each other at a distance r and are approaching each other in a uniform motion. Someone may have...