Search for Dark Matter

[Pinball1970]

T.I.L. LUX-ZEPLIN (LZ) looking for Dark matter.

Results (280 days worth of data) presented in conferences this month.

article here https://phys.org/news/2024-08-dark.html

From the article: "LZ uses 10 tons of liquid xenon to provide a dense, transparent material for dark matter particles to potentially bump into. The hope is for a WIMP to knock into a xenon nucleus, causing it to move, much like a hit from a cue ball in a game of pool. By collecting the light and electrons emitted during interactions, LZ captures potential WIMP signals alongside other data."

 

[Gawdzilla Sama]

Boys and their toys.

 

[Pinball1970]

Boys and their toys.

Fun for us though. The universe and stuff.

 

[quant]

Fun for us though. The universe and stuff.

https://www.energy.gov/science/doe-explainsdark-matter

 

[DaveC426913]

https://www.energy.gov/science/doe-explainsdark-matter

"Dark matter remains strange and illusive but tremendously important to our understanding of nature, from the most fundamental particle..."

I guess it's not wrong, but I wonder if they meant elusive.

 

[James R]

It might be turn out to be illusive. Jury is out on that at the moment.

 

[Gawdzilla Sama]

e·lu·sive
/əˈlo͞osiv/
adjective

1. difficult to find, catch, or achieve.

 

[DaveC426913]

e·lu·sive
/əˈlo͞osiv/
adjective

1. difficult to find, catch, or achieve.

Yes. That is what I think they meant. The solution to DM is difficult to find, catch or achieve.

But I can't deny that illusive also works:

illusive: having the nature of something unreal or deceptive.

 

[Gawdzilla Sama]

I'll tell JPL, so they can close up and go home.

 

[Pinball1970]

I'll tell JPL, so they can close up and go home.

On going research, let's see. (It's pinball -change of mail as previous was not playing nice with SF)

 

[Pinball1970]

I'll tell JPL, so they can close up and go home.

They are losing 5% of staff in cut backs

 

[Gawdzilla Sama]

If Musk wasn't involved it would 100% I think.

 

[Gawdzilla Sama]

Meanwhile research into good, solid phlogiston sources will be fully funded.

 

[Le Repteux]

Has anyone ever tried to reverse the idea that the space between galaxies is expanding, by assuming that it is instead the distance between particles that is contracting? This explains the acceleration of the redshift, and I think it also explains the anomaly in the rotation speed of galaxies.

 

[Gawdzilla Sama]

Has anyone ever tried to reverse the idea that the space between galaxies is expanding, by assuming that it is instead the distance between particles that is contracting? This explains the acceleration of the redshift, and I think it also explains the anomaly in the rotation speed of galaxies.

Makes no sense. The expansion has been measured. No shrinkage found. Not even close to explaining anything.

 

[DaveC426913]

Has anyone ever tried to reverse the idea that the space between galaxies is expanding, by assuming that it is instead the distance between particles that is contracting? This explains the acceleration of the redshift, and I think it also explains the anomaly in the rotation speed of galaxies.

Yes, this has been thought of. It falls apart for the same reason many such ideas do:

• there are no observations that suggest this idea is explanatory,
• it has no mathematical or theoretical basis,
• it poses more questions than it answers,
• it makes no predictions we can test - i.e. even if it were true, how could we tell?