Does detector LIGO work on freewill only?

[Alex K]

Can you summarize succinctly what your problem with the equivalence principle is?

I have no problem with it. I have no problems at all. Because I am Eastern Orthodox Christian.

I guess getting a clear statement out of you about your criticism of the LIGO measurement is hopeless?

[theBorg]

I have no problem with it. I have no problems at all. Because I am Eastern Orthodox Christian.

I guess getting a clear statement out of you about your criticism of the LIGO measurement is hopeless?

Let me reformulate. There is "strong equivalence principle", see Wikipedia. Therefore, the observation in small laboratory is the same throughout all space and time. Therefore, by looking at the color of the laser radiation one can not detect the incoming gravitational wave. But it was detected this way. Therefore, the wonder of the freewill has happened: detector works due to the spiritual powers. Let us hope, what they came from the Jesus Christ.

[A Handmaid]

Let me reformulate. There is "strong equivalence principle", see Wikipedia. Therefore, the observation in small laboratory is the same throughout all space and time. Therefore, by looking at the color of the laser radiation one can not detect the incoming gravitational wave. But it was detected this way. Therefore, the wonder of the freewill has happened: detector works due to the spiritual powers. Let us hope, what they came from the Jesus Christ.

This is the will of the Steins;Gate!
Let us all defeat the organization's plans and reform this world's power balance!

[Alex K]

I guess getting a clear statement out of you about your criticism of the LIGO measurement is hopeless?

Let me reformulate. There is "strong equivalence principle", see Wikipedia. Therefore, the observation in small laboratory is the same throughout all space and time. Therefore, by looking at the color of the laser radiation one can not detect the incoming gravitational wave. But it was detected this way.

What do you consider a "small laboratory" in this case? The whole Ligo setup with the two arms? How do you justify that it is a small laboratory in the sense of the equivalence principle and to the precision at which the observations are made? (after all, the equivalence principle is only strictly true for infinitely small systems or else one needs to neglect higher order effects). And at which point does the interferometer look at the color of the laser anyway?

[theBorg]

Let me reformulate. There is "strong equivalence principle", see Wikipedia. Therefore, the observation in small laboratory is the same throughout all space and time. Therefore, by looking at the color of the laser radiation one can not detect the incoming gravitational wave. But it was detected this way.

What do you consider a "small laboratory" in this case?... And at which point does the interferometer look at the color of the laser anyway?

1) the 4 km of LIGO is much, much smaller length, than the period of the gravitational wave (otherwise the theory does not work).
2) place your thoughts near the small laser inside the LIGO. What does your mind "see"? All the parameters of laser beam do remain unaffected. You have the "vision of the mind". Use it in God blessed ways!
3) The description of LIGO suggests the opposite, thus, the LIGO is sorcery. Latter is sin. If one uses the powers of True God, then this must be stated in the description of LIGO.

1) and insult when you deserve it!
2) I am sure that gravity can also affect a laser...
The "Doppler" type effect

1) Hurting an innocent you do hurt yourself: what goes around, comes around.
2) So, you do debunk the strong equivalence principle. Allow me then to follow main stream science, rather than your fallacies.

[Alex K]

What do you consider a "small laboratory" in this case?... And at which point does the interferometer look at the color of the laser anyway?

1) the 4 km of LIGO is much, much smaller length, than the period of the gravitational wave (otherwise the theory does not work).

That's true, indeed, and I concede that LIGO is small in the sense of the equivalence principle - compared to the long waves recorded there, and higher order effects showing the violation of the E.P. probably don't play an essential role.

Where you go wrong in your application of the equivalence principle to LIGO is that the equivalence principle only states that the results are the same in all (small) laboratories if one considers the exact same experimental setup. The opposing mirrors in a LIGO arm 1. without a gravitational wave and 2. with a gravitational wave trough or peak passing through, are however not the same distance. When the wave enters the interferometer arm, due to the change in spacetime, the mirrors now suddenly have a different distance, and therefore the interference pattern changes.

The experiment would only show the same results with the wave present if the mirrors were the same distance as measured in the old spacetime without wave and the new spacetime with wave. To achieve that, they would have to be glued to the (on the timescale of the wave sufficiently rigid) interferometer arms instead of hung freely, because ideal rigid interferometer arms keep constant length when the wave comes in because their length is determined by the atomic constants. Then the experiment would show the same when the wave comes in as you demand it from the equivalence principle.

HOWEVER, since the mirrors are hung freely, their distance will change when the wave comes in due to the local expansion and constriction of space between them, the numerical parameters of the setup change (namely the spatial distance of the mirrors), and a changing interference pattern is not in contradiction with the equivalence principle.

[theBorg]

1) the 4 km of LIGO is much, much smaller length, than the period of the gravitational wave (otherwise the theory does not work).

since the mirrors are hung freely...

The technical description of LIGO shows, what the mirrors do not hung freely, isn't it? You have the information from the Wikipedia, haven't you? The Wikipedia is way too primitive source of information.

[LostLocke]

Wikipedia? No.
There are a number of sources that state the LIGO mirrors are suspended and not "bolted down" to the arm.
A quick Google search can show you these sites....

[Alex K]

since the mirrors are hung freely...

The technical description of LIGO shows, what the mirrors do not hung freely, isn't it? You have the information from the Wikipedia, haven't you? The Wikipedia is way too primitive source of information.

I haven't read the Wiki yet.
The mirrors are suspended from elaborate multi-stage pendulums in order to be insulated from the movement of the ground, and enable them to move practically freely along the beam axis which is what matters here.

[Alex K]