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But when you read it, you do understand that it is all about the galaxies expansion and not about the space expansion.
Therefore, Let's agree that you have no evidence for space expansion and let me move on to the next subject.
The ones who understand relativity say that things can not tarvel through space faster than light.
Ligo detects that expansion and contraction of space.
We can't move on until you understand this subject.
Our scientists specifically claim in LIGO that they measure a specific object.So it is not about the expansion of the space but about the expansion of that object.
The relativity doesn't prevent from galaxies at far away space-time to move faster than the speed of light.
QuoteQuote from: Dave Lev on Today at 17:14:51Our scientists specifically claim in LIGO that they measure a specific object.So it is not about the expansion of the space but about the expansion of that object.No, they measure the space between two objects- two mirrors.
Quote from: Dave Lev on Today at 17:14:51Our scientists specifically claim in LIGO that they measure a specific object.So it is not about the expansion of the space but about the expansion of that object.
Relativity allows the expansion of space.But it does forbid travel through space at more than C.
https://www.quora.com/If-nothing-is-faster-than-light-how-did-the-Big-Bang-happen-in-less-than-a-nanosecond"At no point during the evolution of the universe did any object move faster than the vacuum speed of light at the object’s location.However, in curved space-time, there is absolutely no rule that says that an object cannot be faster than light relative to a distant observer.So even today, there are parts of the universe, which are inaccessible to us through observation, which (as far as we know) are moving faster than light relative to us. But that’s okay. They are not moving faster than light at their own location."
The space doesn't reflect any radiation.
So, as I have stated, they measure the expansion of those two objects- two mirrors.
in LIGO that they measure a specific object.
So, it is all about matter/objects expansion and not space expansion.
Quote from: Bored chemist on Today at 16:47:31We can't move on until you understand this subject.
I have already explained it to you that at far away space time object can move faster than the speed of light with reference to us. However, at their location they can't move faster than the speed of light.
QuoteQuote from: Dave Lev on Yesterday at 17:14:51in LIGO that they measure a specific object.But what they measure is how far apart the two mirrors are.And the gap between two mirrors is space, and that's what they measure.It is important in science to be able to count to at least two.
Quote from: Dave Lev on Yesterday at 17:14:51in LIGO that they measure a specific object.
There are plans to build more sensitive gravity wave detectors where the mirrors are on separate satellites.That makes it even more obvious that (1) they are measuring the space between the things and (2) you are wrong.
That's because they can move with space with an apparent speed greater than C but they can not move through space faster than C
Which is what I have been saying all along.The only way you can have things travel faster than light is for space to be expanding.
Therefore, the gap between two mirrors is not the space frame itself but it is just the distance between the two objects, and that's what they measure.
You are wrongThey only can measure the distance between the two objects (not the space frame itself).
You missed the point.The "message" about the galaxy was carried here on a wave traveling in spacetime.That wave is an expansion of space in a similar way to sound being compression and expansion of air.Ligo detects that expansion and contraction of space.
QuoteQuote from: Dave Lev on Today at 05:07:49Therefore, the gap between two mirrors is not the space frame itself but it is just the distance between the two objects, and that's what they measure.Then why does it change?
Quote from: Dave Lev on Today at 05:07:49Therefore, the gap between two mirrors is not the space frame itself but it is just the distance between the two objects, and that's what they measure.
It's not that I am wrong.It isn't my idea.However, the people working on LIGO , who are the people who actually understand this (i.e. not you), say they are measuring space.
"We have used the gravitational-wave source GW170817, which was detected by Advanced LIGO and Advanced Virgo on August 17 2017, to make the first-ever standard siren measurement of the Hubble constant."Therefore, Ligo proves that this object is correlated to the Hubble constant, but it doesn't prove that the space itself is expanding.
You missed the point.The "message" about the galaxy was carried here on a wave traveling in space-time.That wave is an expansion of space in a similar way to sound being compression and expansion of air.Ligo detects that expansion and contraction of space.
There is also big advantage in theory D.The space expansion imagination is Ok for far away galaxies but it can't explain the activity at relatively close distance (as the MW and Andromeda)Therefore, you need some help from another theory that is called gravity.However, if gravity works to explain the idea that Andromeda is moving in the direction of the MY while they are still quite far away, why that gravity doesn't pull triangulum galaxy in the direction of Andromeda while they are so close together?Are you going to invent third theory for that?In theory D, based on the same theory/Idea we can explain the activity at the local aria and at the ultra far away aria.Therefore, in BBT when you use one imagination (space expansion), you need a help from other imagination (gravity) and then try to find one more imagination for galaxies that refuse to work according to your two imaginations.In theory D the same simple explanation for "local" works perfectly also for "ultra far away" location.That is the meaning of real science!
They do not even try to claim that the detected gravity wave carries the galaxies with it.
Ocean waves transport energy over vast distances, although the water itself does not move, except up and down.
No. They don't even claim that they measure the space itselfit is stated:https://www.ligo.org/science/Publication-GW170817Hubble/Quote from: Dave Lev on Yesterday at 14:51:20"We have used the gravitational-wave source GW170817, which was detected by Advanced LIGO and Advanced Virgo on August 17 2017, to make the first-ever standard siren measurement of the Hubble constant."Therefore, Ligo proves that this object is correlated to the Hubble constant, but it doesn't prove that the space itself is expanding.So, they actually verified by those two objects in space that the Hubble constant is correct.Therefore, the do not claim that they measure the space itself and please remember that even Hubble didn't observe the space expansion. They all can just observe the galaxies/objects expansions.
Quote from: Bored chemist on Yesterday at 17:17:54Quote from: Bored chemist on Today at 16:47:31We can't move on until you understand this subject.
Just one simple rule - Real pair creation by BH
There is only one thing which LIGO really measures, and that's gravity waves.So, if someone is using the LIGO data to measure anything, they are using LIGO to measure gravity waves.Gravity waves are an expansion and contraction of space.So, anything to do with the LIGO data is a proof of the expansion of space.
Can you please explain why Andromeda is moving in the direction of the MW?As it is moving today directly in our direction, can you estimate what was the distance to the MW 5 By ago or 12.5 By ago?Can you please explain why Triangulum that is located so close to the Andromeda, isn't falling into that supper massive galaxy?Can you please explain the Hydrogen Bridge between triangulum and Andromeda?
I'm still waiting for an explanation,
So, please don't claim again that the gravity wave is an indication for the space expansion.
I would never even agree ith that space expansion imagination.
So, the space was always there in our infinite 3D Universe.You can't move it, you can't expand it.
Quote from: Bored chemist on Yesterday at 22:11:40Quote from: Bored chemist on Yesterday at 17:17:54Quote from: Bored chemist on Today at 16:47:31We can't move on until you understand this subject.
Quote from: Kryptid on Today at 14:44:33I'm still waiting for an explanation,SoonPromise
how the first black hole formed.
Those BHs didn't spin. Therefore, they couldn't generate EM radiation.
both electrons and quarks
For every 10,000,000,000 anti-matter particles there are 10,000,000,001 matter particles, an asymmetry of 1 particle out of 10 billion.