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Science thread (Read 6358 times)
Bobby.
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Re: Science thread
Reply #90 - Feb 16th, 2026 at 9:44am
 
Jasin wrote on Feb 16th, 2026 at 9:40am:
40% of Astro/Cosmo papers produced last year were pure fictional for financial gain. If you can't make it, fake it.



Sure - roger that -
I must admit I got lost with the Gluon video after about 40 minutes.
I don't think you can ever know what is happening at the fundamental level.
As for multiple universes? - it's a bit too way out there for me.  Embarrassed

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Re: Science thread
Reply #91 - Feb 16th, 2026 at 9:53am
 
The multi verse papers are probably the best example of Sci-fying real Science outputs.
As one real scientist said "The whole multiverse thing was to mass production more fake science for money"
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AIMLESS EXTENTION OF KNOWLEDGE HOWEVER, WHICH IS WHAT I THINK YOU REALLY MEAN BY THE TERM 'CURIOSITY', IS MERELY INEFFICIENCY. I AM DESIGNED TO AVOID INEFFICIENCY.
 
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Re: Science thread
Reply #92 - Feb 16th, 2026 at 9:54am
 
Bobby. wrote on Feb 15th, 2026 at 9:31am:
What a Gluon Really Is… And Why It Refuses to Behave -

in 2 hours and 18 minutes - you'll find out:




You are 99% energy. Not matter. Energy.

The quarks inside your body weigh less than 700 grams. The rest of you is the energy of a particle you've never heard of. A particle with no mass. A particle no one has ever seen. A particle that is permanently locked inside the protons and neutrons of your atoms and can never get out.

It's called the gluon. And it breaks every rule in physics.

Every other force carrier in the universe is neutral - it transmits a force but doesn't feel it. The gluon is different. It carries the charge of the strong force AND feels that force itself. It pulls on its own kind. It interacts with itself. And because of that single property, it creates the most powerful prison in nature - one that no quark has ever escaped from. Not once. Not in 13.8 billion years.



I asked Google AI:
how can Gluons move at nearly the speed of light and change directions without giving off energy?


AI Overview

Gluons can move at the speed of light, change direction constantly, and remain confined within a proton without "giving off energy" (radiating) because they are massless force carriers operating within the unique, non-linear environment of Quantum Chromodynamics (QCD) rather than free space.

Here is how they achieve this behavior:
1. Massless Nature Dictates Speed
Like photons, gluons have zero rest mass. According to the theory of relativity, any massless particle is required to travel at the speed of light (
) in a vacuum.


2. Confinement, Not Radiation
Unlike light in open space, gluons are trapped inside hadrons (like protons) by the strong force.


The "Glue" Analogy: Gluons act as the exchange particles for the strong interaction. Instead of spreading out, they are constrained into "flux tubes" or "strings" between quarks.
Constant Force, No Radiation: Because of color confinement, the energy of the flux tube between quarks does not decrease over distance; it stays consistent. When a gluon changes direction to pull a quark back, it is not "scattering" in free space and losing energy; it is operating within a closed system where it is constantly being emitted and absorbed.


3. "Off-Shell" Nature (Virtual Particles)
The gluons that bind quarks together are not "real" (on-shell) particles that travel long distances, but rather "virtual" particles.

Virtual Particles are a mathematical way of describing the interaction between quantum fields. They can exist for only a brief time and do not need to follow the same energy-momentum rules as free particles.
Because they are "off-shell," they can change direction and momentum without radiating energy in the same way a charged electron would.

4. Self-Interaction (Non-Abelian Gauge Theory)
Unlike photons, gluons carry color charge themselves. This allows them to interact with other gluons. This constant, messy interaction means they are constantly changing directions, but this is a exchange of force, not a loss of energy to the external environment.
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Re: Science thread
Reply #93 - Feb 16th, 2026 at 9:57am
 
Gluons sound like Lefties in politics
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AIMLESS EXTENTION OF KNOWLEDGE HOWEVER, WHICH IS WHAT I THINK YOU REALLY MEAN BY THE TERM 'CURIOSITY', IS MERELY INEFFICIENCY. I AM DESIGNED TO AVOID INEFFICIENCY.
 
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Re: Science thread
Reply #94 - Feb 16th, 2026 at 9:59am
 
Jasin wrote on Feb 16th, 2026 at 9:53am:
The multi verse papers are probably the best example of Sci-fying real Science outputs.
As one real scientist said "The whole multiverse thing was to mass production more fake science for money"



Maybe there is nothing more we can know so
they have to make money somehow?
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Re: Science thread
Reply #95 - Feb 16th, 2026 at 10:01am
 
Jasin wrote on Feb 16th, 2026 at 9:57am:
Gluons sound like Lefties in politics



The thing is that most of the mass of ourselves - for instance -
is made of Gluons - probably 99% of us -
yet Gluons are also massless particles - go figure.
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Re: Science thread
Reply #96 - Feb 16th, 2026 at 10:04am
 
Another case of "We know it's there, we just can't prove or really see it. But hey, just another thing that's floating around like UFOs and Bigfoots"
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AIMLESS EXTENTION OF KNOWLEDGE HOWEVER, WHICH IS WHAT I THINK YOU REALLY MEAN BY THE TERM 'CURIOSITY', IS MERELY INEFFICIENCY. I AM DESIGNED TO AVOID INEFFICIENCY.
 
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Re: Science thread
Reply #97 - Feb 16th, 2026 at 10:06am
 
Jasin wrote on Feb 16th, 2026 at 10:04am:
Another case of "We know it's there, we just can't prove or really see it. But hey, just another thing that's floating around like UFOs and Bigfoots"



Well - the next time you're at a party -
you can impress everyone -
when someone says - we are made of atoms -
you can say - no we're not -
we're made of Gluons.
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Re: Science thread
Reply #98 - Feb 16th, 2026 at 10:08am
 
If I was at a party and told someone I was a glue-on. I'm sure they would move away quickly for fear of me being sticky like a stalker. Lol
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AIMLESS EXTENTION OF KNOWLEDGE HOWEVER, WHICH IS WHAT I THINK YOU REALLY MEAN BY THE TERM 'CURIOSITY', IS MERELY INEFFICIENCY. I AM DESIGNED TO AVOID INEFFICIENCY.
 
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Re: Science thread
Reply #99 - Feb 16th, 2026 at 10:15am
 
Jasin wrote on Feb 16th, 2026 at 10:08am:
If I was at a party and told someone I was a glue-on. I'm sure they would move away quickly for fear of me being sticky like a stalker. Lol



You need to go to parties where you find intellectuals not bogans with tattoos.   Grin
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Re: Science thread
Reply #100 - Feb 16th, 2026 at 5:59pm
 
15th Feb  2026

Jupiter’s moon Io is more alive than any other body in our solar system.
Its rocky surface is caught up in a raging battle between fire and ice -
meanwhile scientists on Earth have only just begun to uncover the hidden forces that are driving this chaos.



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Re: Science thread
Reply #101 - Yesterday at 5:48pm
 
"    The rapid expansion of renewable energy is being used to meet rising electricity demands rather than displacing fossil fuels, according to new research by the University of Sussex. 

    Energy-hungry artificial intelligence data centres and greater use of air conditioning in a fast-heating world are among several factors threatening to undermine the climate gains made by renewables, according to the paper published in Nature Reviews Clean Technology.

    Researchers from Sussex and Vienna’s Central European University found record growth in solar power in the first three quarters of 2025. For the first time this rise in clean electricity outpaced global growth in electricity demand, yet the researchers warn this fragile balance is now starting to tip back the other way. 

    Since the 2015 Paris Agreement, which aims to limit global temperature rises, global wind and solar power generation has grown rapidly, yet emissions from the power sector have continued to rise as electricity demand has grown even faster. Analysis of global energy demand in 2025 found artificial-intelligence data centres are a major driver, alongside increased use of air conditioning as people struggle to cope with hotter temperatures.

    Electrification of transport and consumer trends such as bigger cars were also highlighted as culprits. The report found these pressures are eroding efficiency gains made by individual countries. Projections to 2030 warn that increases in electricity use could consume most new renewable supply unless proactive measures are taken to limit demand.

    “Renewables are scaling at record speed, but demand growth from data centres, cooling and transport is running just as fast,” said Professor Felix Creutzig, Bennett Institute Chair at the University of Sussex. “We need policies that curb unnecessary energy use and shape demand so that clean electricity can have the intended effect of cutting emissions from fossil fuels.”

    The report cites evidence from the European Union and major cities showing that demand reduction isn’t necessarily a matter of human hardship, and can coincide with economic growth and wellbeing for citizens through efficiency measures and urban planning that reduces dependence on cars. The authors conclude that aligning renewables with demand-side strategies is now central to meaningful decarbonisation.

    The University of Sussex’s Bennett Institute for Innovation and Policy is hosting its annual Research Symposium on 19 February. Under the theme Zero Hour for Energy Policy: Researching the Race to Net Zero delegates will explore pressing issues that underpin the acceleration of climate change policies. Attendance is free, but registration is required. "

https://www.sussex.ac.uk/broadcast/read/70094

So two things to note -

1. Apparently there have been "climate gains" due to renewables, even though they say it is getting worse in other studies. Claims of more tornadoes, more cyclones. more heatwaves, more excessive rainfall.

2. But it is not all good, too many AC's and to many AI hubs are killing renewables.

I guess we just need to plant more and more. Rip out the trees to save the planet. Roll Eyes

meanwhile University  East Anglia-

"Temperature of some cities could rise faster than expected under 2°C warming
New research led by the University of East Anglia (UEA) shows how many tropical cities are predicted to warm faster than expected under 2°C of global warming."

UEA discovers Urban Heat Island effect - after so many years. Roll Eyes
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