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James Webb Space Telescope reveals that most galaxies rotate clockwise

smithsonianmag.com

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Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#141

Post by cozyman »

eagerpace wrote: post #94
keyle wrote: post #9

Potentially a very dumb question, but seeing the difference between cyclones and hurricane on earth (clock-wise, anti-clock-wise)... Does it mean that we are, potentially, on one of two poles(?) of the observable universe, if we're observing most galaxies around us rotating a certain way?

https://mapoftheuniverse.net While we don't believe we're the center of the universe, I believe we're limited by instrumentation to determine its size. Best guess now is 100B LY in diameter.

that's the neat part, it is though

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#142

Post by ordu »

like_any_other wrote: post #19

> Due to an effect called the Doppler shift, astronomers expect galaxies rotating opposite to the Milky Way’s motion to appear brighter How does this work? The page it links to doesn't explain why rotation would matter. Edit: To clarify - one side of the galaxy would be moving towards us, and one away from us, no matter which direction it spins in, so this should not affect the average brightness of the entire galaxy…

Well, I don't know physics, but from I heard of it, there are two kinds of phenomena that are sensitive to a rotation. One is quantum particles, they have fixed spin, but won't delve into that topic, because I suspect that their "spin" is like the charm of the charm quark, probably physicists just liked the sound of a word and used it. But there is one other thing I heard about: electromagnetism. If you run charged particles in circles, they create magnetic field that is directed perpendicularly to the circles, and the magnetic field feels different depending on the side of the circles being observed.

I see no way it influences the light emitted, but maybe I heard just too little of physics? BTW, does the direction of magnetic field of galaxies correlate with the direction of their rotation?

edit: Ah, maybe magnetic field can polarize the light? And when you have two magentic fields they polarize in one direction or in two different, and maybe it influences observed brightness of the light? Or maybe it is just an uninformed guess?

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#143

Post by adolph »

analog31 wrote: post #102
keyle wrote: post #9

Potentially a very dumb question, but seeing the difference between cyclones and hurricane on earth (clock-wise, anti-clock-wise)... Does it mean that we are, potentially, on one of two poles(?) of the observable universe, if we're observing most galaxies around us rotating a certain way?

We're equidistant from the edge of the observable universe in all directions. One would think that puts us at the center. (But the same is true for someone sitting on another planet).

> equidistant from the edge of the observable universe in all directions

That seems like an example of "streetlight effect." The streetlight effect, or the drunkard's search principle, is a type of observational bias that occurs when people only search for something where it is easiest to look.

https://en.wikipedia.org/wiki/Streetlight_effect

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#144

Post by hnuser123456 »

keyle wrote: post #9

Potentially a very dumb question, but seeing the difference between cyclones and hurricane on earth (clock-wise, anti-clock-wise)... Does it mean that we are, potentially, on one of two poles(?) of the observable universe, if we're observing most galaxies around us rotating a certain way?

There is a dipole/toroidal universe theory: https://evolvingsouls.com/blog/toroidal-universe/

Pardon the cheesy domain name, the content is very relevant.

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#145

Post by platz »

ziofill wrote: post #121
permo-w wrote: post #63

Earlier quoted context omitted.

maybe this is a stupid question, but is it possible that the big bang simply had some kind of clockwise angular momentum to it? how different is that idea from the black hole cosmology concept? I don't really understand how the two fit together

It’s different because it’s simpler to assume that the total angular momentum of the universe is zero. If one black hole is rotating one way there must be other stuff rotating the other way to counterbalance. If you assume instead that the whole universe has angular momentum, well, where did that come from?

Where did the the values of the coupling constants between the various fields come from?

There are many parameters that do not have a reason for their value.

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#146

Post by idiotsecant »

blueflow wrote: post #139
askonomm wrote: post #96

Earlier quoted context omitted.

Just thinking about this infinite recursion gives me the mental equivalent of a stack overflow.

I don't think it is infinite - each universe can only have that mass/energy that fell into the outer black hole in the parent universe. At some level you'll inevitably have black holes with universes that do not have enough mass to form another inner black hole.

How much mass is required to form a black hole in a new universe with perhaps different physical constants? It could be that 'ability to make black holes' is a prerequisite for successful universes in the way way that good genes are a prerequisite for successful organisms. The universes that fail to spawn black holes are 'dead ends' so any life is statistically likely to find itself in a black hole spawning universe.

Maybe there is an 'incentive' for universes to form with physical constants tuned to produce black holes with the available energy in that universe.

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#147

Post by 1970-01-01 »

Spin a coin on top of a glass table. Observe it from the top, and it spins either clockwise or anticlockwise. Observe it from the bottom and it's the opposite. There are no tables in space. Objects tumble while rotating. It seems we are measuring rotations using a fixed perspective when there is no reason to do so

https://www.comsol.com/blogs/why-do-tennis-rackets-tumble-th...

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#148

Post by okdood64 »

andrewaylett wrote: post #22
worldsayshi wrote: post #15

Clockwise relative to what? Does the universe have an "upwards" direction? Or is it just relative to all the other galaxies?

Clockwise relative to our viewpoint, while we would expect that we'd see an equal number rotating in either direction no matter which way we looked or where we were looking from.

So it would've been more "broadly" true to say: JWST discovers that most galaxies rotate in the _same_ direction?

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#149

Post by whamlastxmas »

fennecfoxy wrote: post #59
keyle wrote: post #9

Potentially a very dumb question, but seeing the difference between cyclones and hurricane on earth (clock-wise, anti-clock-wise)... Does it mean that we are, potentially, on one of two poles(?) of the observable universe, if we're observing most galaxies around us rotating a certain way?

That would be super cool to find out! And then it also begs the question, is there something at the center that unites the two poles? If so then what is it! It would also imply that our whole universe is rotating - the only reason this happens on Earth is because of our planets rotation and the Coriolis effect.

*raises the question

Re: James Webb Space Telescope reveals that most galaxies rotate clockwise

#150

Post by richwater »

1970-01-01 wrote: post #147

Spin a coin on top of a glass table. Observe it from the top, and it spins either clockwise or anticlockwise. Observe it from the bottom and it's the opposite. There are no tables in space. Objects tumble while rotating. It seems we are measuring rotations using a fixed perspective when there is no reason to do so https://www.comsol.com/blogs/why-do-tennis-rackets-tumble-th...

The paper measures rotation relative to the Milky Way galaxy.
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