worlov

The rocket can be built like a catamaran. In this way, the traveling twin can apply geometric parallax to determine the distance. And he will measure the time with his own clock. And calculate the speed from it.

How long flies the traveling twin from the perspective of the twin on earth?

It's not that easy either. What is the difference between these two cases purely practical? In the first case the traveling twin flies 1 light-year forth and back. His brother is getting older than him. In the second case the traveling twin flies a bit further, additionally 1 light-year, and back. His brother is getting younger than him... Of course, always the traveling twin flies. In the first case, his journey for the twin on earth takes the longest.

As I said, it depends on who determines the journey. In usual representation this makes the twin on earth. He chooses a star that rests in his frame. In his view, the traveling twin must fly the full length of the route. That's why the journey takes the longest. The traveling twin, however, sees the route shortened due to the length contraction. As a result, the journey takes shorter. Now we let the traveling twin determine the destination of the journey. He finds an object, e.g. a meteroid, in the direction from the other side of the earth (see picture). This meteroid rests in the frame of the traveling twin. Together they fly relative to the earth (sun). From the perspective of the traveling twin, the earth should pass the full distance to the meteroid. That's why the journey takes the longest in his frame. However, because of the length contraction, the twin on Earth sees the meteroid closer. That's why the journey will be shorter for him. In addition, the twin paradox is mutual.

And that applies vice versa. If the destination was 2 LY away according to the rocket observer (the lower half of the picture), then the earth observer will see the trip 1LY long.

The time dilation in relativity is relative. Every observer sees that the clock of another moving observer slows down. However, the twin paradox shows that time can indeed slow down. The twin paradox is not mutual... But I think I have discovered the trick. Everything depends on who determines the distance of the trip. Does the twin who remained on Earth do that, then this twin ages faster. And vice versa: Does the travelling twin do that in his frame during the outward journey, then this twin ages faster. The difference is the length contraction. The twin who sees the route from another reference system sees this route shortened. Therefore, he needs less time to travel this route. Best regards Walter Orlov

The cause of the distorted noise is obviously in the maintenance procedure. Both noise and signal are measured by the same equipment during this maintenance procedure. Therefore it is to be expected that the signal itself will be distorted as well as the noise. If the signal has been stretched, it should be compressed so that it gets its original appearance. But then it will have different curvature than in Livingston. That way the chirps will not agree with each other. As result they can be treated only as random glitches. The consequence, there was no GW170608 event in reality.

Your theory about JPG effect can not be right. I painted a similar picture in Microsoft Paint. The file was first saved as BMP and afterwards as JPG. But I could not see any difference with my naked eyes. See also this picture below. The white stripe does not change the background. Certainly there is an effect in the pixel area, but for us this is insignificant. (So much for my alleged paranoia.) The horizontal noise chains in the original spectrogram are therefore real!

The spectrogram ('a noise JPG') is a visual representation of the measurement data. If you say it is not relevant, then you're also rejecting the data behind it. I did not paint this spectrogram. Take the original picture and you will see the same thing.

Hello! We have the following "GW170608 was observed during a routine instrumental procedure at LHO..." http://iopscience.iop.org/article/10.3847/2041-8213/aa9f0c The authors claim that this did not disturb the signal itself. But let's take a closer look at the spectrogram. I have made these a bit more contrasting and brighter (see below). You can see in the spectrogram that the structure of the noise has changed: http://vixra.org/pdf/1804.0095v1.pdf Before the maintenance work we see the point-shaped fluctuations structure. And during the maintenance work it can be seen horizontal - along the time - noise lines, also in the frequency range above 30Hz. And this has obviously an aftermath: Hanford's Chirp is more than four times longer than Chirp by Livingston. Even if we accept the GW-event as real, the relativistic template is too long, because it was adapted to Harford's Chirp. That's why I think the data needs to be overhauled. Regards

It's not about the electromagnetic influence. The "power line harmonic" coming from the electrical outlet. With 60Hz, 120Hz, 180Hz etc. pulsating supply voltage entire electronics. To suppress these pulsations entirely, should LIGO switch to battery supply.

I'm sorry, I did not try. I am ignorant... but for good reason. I accept that if a gravitational wave actually comes, the detectors will notice it. And when an electromagnetic wave comes, the detectors will ignore them. Now we look at the noise of the detectors: What have the "Power line harmonic" lost here? Do they have anything to do with the gravitational waves? - Nothing! Nevertheless, they are in the measurement data. And what a coincidence: the signal reached the maximum amplitude at about 180Hz, that is at the third harmonic. If the detectors are working properly, then it may have been the lightning strike on the overhead power line, what the detectors have seen. Thanks for your patience. Actually, I'm to blame, because I immediately addressed several problems. Hence it is a mess. But we can also conclude the discussion.

I doubt this. In this way one has not directly confirmed the relativistic simulation. Meanwhile, the relativistic curve is changed significantly by the filtration. There remained only a "zilch". I lack a convincing return from "zilch" to the original function. Then the evidence would have been perfect.

Back to GW150914. The key to understanding of the data processing provides the following picture: https://physics.aps.org/articles/v9/52 The numerical relativity (NR) template is band and notch filtered as well as the measurement data itself. In this way it fit with 5.1-sigma to the measurement data. I have this also checked. We can fetch the data of "matched NR waveform" from the following URL: https://losc.ligo.org/s/events/GW150914/GW150914_4_NR_waveform.txt Find you this justified?

I have suspected the active damping: https://www.ligo.caltech.edu/page/ligo-technology The source of error may be due to software.The regulation must be quite complicated: https://www.dspace.com/shared/data/pdf/dspace_magazine/dSPACE-Magazine_LIGO_2008-2_en.pdf Who looks through? Certainly, PID controller is realized, because it allows fastest and most accurate control. But... from experience I know that the PID controller are unstable when high frequency interference is present. Therefore, I prefer in my practice the PI controller. Yes, it is carrier, but stable. So, the software of the system for active damping can have a quirk.