Recent content by alexandrinushka

Great explanation @Ibix thanks a lot

@Dale it will be torn apart well before any relativistic effects can be observed, you are right. It was a hypothetical scenario ignoring other forces.

Yes, I think you got the exact scenario, which I am not really managing to explain very well. Observer A is moving at speed v compared to the supposedly absolute frame. Sphere B is also moving at the same speed and direction as A. I am supposing A and B are contracting at the same degree. Now B...

Thanks a lot @Ibix The device will be contracted indeed. It us moving at speed v compared to the "absolute frame". But won't it measure the sphere as contracted in the part moving at v + w and dilated at the part moving at v - w? If not, can you please explain why? Sorry, I don't understand...

Experiments that attempt to directly probe the one-way speed of light independent of synchronization have been proposed, but none have succeeded in doing so.[3] Those experiments directly establish that synchronization with slow clock-transport is equivalent to Einstein synchronization, which is...

SR interpreted as having no absolute frame of reference and an absolute frame type version of SR, where the speed of light is isotropic only in one undetectable frame are considered equivalent, since they use the same math. But here is a scenario in which I don't see how the physical predictions...

@Sagittarius A-Star for the "nicely formatted" formula you'll be really disappointed: I copy pasted it from Wiki 🙄 Rizzi and Co say also that the space on the disk is not time-orthogonal (although I admit I don't really understand what they mean by that... I guess something like "impossible to...

I am sorry 🙈 silly of me

Hello @Nugatory we were discussing earlier if the Sagnac effect applies as well to non-circular paths. I was thinking about some clocks, that would move around a square shape (but it can also be a triangle, whatever, but not necessarily a circle). When back in front of the stationary clock in...

@Sagittarius A-Star actually... hum... The final formula for the time lag due to the Sagnac effect calculated by Rizzi and Ruggiero (their formula 25 with the proper Lorentz factor for the local rotating clock time) is different from the one in the link (formulae 9 and 13). The link takes c2 -...

@Sagittarius A-Star thanks for your patience and thorough reply. As for the Twin Paradox: https://en.m.wikipedia.org/wiki/Twin_paradox

OK for the clocks on the rim. Danke, @Sagittarius A-Star But I am an observer in the lab, just seeing one clock at a time when it is facing my clock... So what about the scenario described in the post 24? Is this a bit like the twin paradox? 🤔

@Sagittarius A-Star see, that is where it gets ****ed up for me. I'm the lab guy and I lab sync all my 10 clock on the square serpent. Great. They are GPS synced and things are neat for them. The serpent is not moving, it's stationary. A sends a signal to B, B to C, and so on and since the...

@Sagittarius A-Star hm... wait, let's not sync them. A runs on the disk, B runs, C runs etc... they mind their own life of clocks. And we come back in 1 year. I get in front of A and I see it's lagging behind by x, then B gets just in front of me and its lag is also x, right? And so on. They...

@Sagittarius A-Star ok, so what if I set multiple clocks around a square, not a disk, and move the square like a serpent. I mean, I do not turn it around, I just move the fiber in a closed square. The clocks that travel on my moving square will be able to send signals to one another and will...