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Bizarre 'Dark Fluid' With Negative Mass Could Dominate the Universe (theconversation.com)
One of the most galling mysteries in physics is that of the dark matter and dark energy. Scientists believe that together, these could account for up to 95 percent of the total mass in the universe. Now, a researcher at the University of Oxford says a new theory could explain all that "dark phenomena." From a report: The two mysterious dark substances can only be inferred from gravitational effects. Dark matter may be an invisible material, but it exerts a gravitational force on surrounding matter that we can measure. Dark energy is a repulsive force that makes the universe expand at an accelerating rate. The two have always been treated as separate phenomena. But my new study, published in Astronomy and Astrophysics, suggests they may both be part of the same strange concept -- a single, unified "dark fluid" of negative masses.
Negative masses are a hypothetical form of matter that would have a type of negative gravity -- repelling all other material around them. Unlike familiar positive mass matter, if a negative mass was pushed, it would accelerate towards you rather than away from you. Negative masses are not a new idea in cosmology. Just like normal matter, negative mass particles would become more spread out as the universe expands -- meaning that their repulsive force would become weaker over time. However, studies have shown that the force driving the accelerating expansion of the universe is relentlessly constant. This inconsistency has previously led researchers to abandon this idea. If a dark fluid exists, it should not thin out over time.
In the new study, I propose a modification to Einstein's theory of general relativity to allow negative masses to not only exist, but to be created continuously. "Matter creation" was already included in an early alternative theory to the Big Bang, known as the Steady State model. The main assumption was that (positive mass) matter was continuously created to replenish material as the universe expands. We now know from observational evidence that this is incorrect. However, that doesn't mean that negative mass matter can't be continuously created. I show that this assumed dark fluid is never spread too thinly. Instead it behaves exactly like dark energy.
Negative masses are a hypothetical form of matter that would have a type of negative gravity -- repelling all other material around them. Unlike familiar positive mass matter, if a negative mass was pushed, it would accelerate towards you rather than away from you. Negative masses are not a new idea in cosmology. Just like normal matter, negative mass particles would become more spread out as the universe expands -- meaning that their repulsive force would become weaker over time. However, studies have shown that the force driving the accelerating expansion of the universe is relentlessly constant. This inconsistency has previously led researchers to abandon this idea. If a dark fluid exists, it should not thin out over time.
In the new study, I propose a modification to Einstein's theory of general relativity to allow negative masses to not only exist, but to be created continuously. "Matter creation" was already included in an early alternative theory to the Big Bang, known as the Steady State model. The main assumption was that (positive mass) matter was continuously created to replenish material as the universe expands. We now know from observational evidence that this is incorrect. However, that doesn't mean that negative mass matter can't be continuously created. I show that this assumed dark fluid is never spread too thinly. Instead it behaves exactly like dark energy.
I had the lamb vindaloo for lunch.
I want my negasphere!
Is it just me or has the physics community been grasping at straws lately?
Just NOPE. Dark fluid ... being magically replenished ... wrong answer to a rather complex question.
They need to explore / understand the fabric of space *itself*. It is stretchable. It can contract. It is also, itself, simply coming apart. If you try to measure this "coming apart" the problem (that I have) is that the measuring instrument itself is coming apart (expanding).
One day the cohesion of space itself will come to a breaking point (the end).
Am I alone in Iâ(TM)m getting tired of looking at comments because I donâ(TM)t want to sift through pages of creamer/apk/nazi/racist posts.
It wouldnâ(TM)t be so bad if these were original. Today it really looks like a few bits running and spamming every post.
I miss hot grits, Natalie Portman, Beowulf clusters of thingiemabobs and even the goatse man himself. Well, I donâ(TM)t miss him that much.
How did we go from meme to vile?
Step 1: Write a peer reviewed article challenging accepted cosmology. Leave open the option that it may be nonsense, so no one can say you're a total crackpot and can pass peer review.
Bonus step: resuscitate a long dead competitive cosmology model.
Step 2: Write an opinion piece to generate publicity and buzz for your crazy theoryle (helpful if on Slashdot).
Step 3: Sit back and watch the refutations publish over and over, thus generating citations for your article and increasing your H-Index.
Step 4: Leverage H-Index to qualify for further grant awards, thus pushing up your value to the University and increasing your salary. Profit!
My theory is debunked only if H-Index isn't the major factor in grant awards they way it is in the US; not sure about the UK. But honestly, this strikes me as being written because bad publicity is better than no publicity.
While all the material we see in our universe is due to one big bang, my theory is that the larger universe of truly far away objects is the result of a collection of as many big bangs as there are stars. These big bangs are far enough away that they are unobservable (with current tech) and distributed in such a way that our observable material is pulled apart by them.
This has the benefit of explaining why our universe is accelerating outwards, and gets away with the fools assumption that the big bang is the one thing in the universe that is unique (hit anything that happens can happen over and over again. Additionally we have no need for some fancy jumping though hoops to explain why we cant see some dark matter that would have to comprise the vast majority of our IMMIDATE surroundings (on a astrophysics scale)
There it is, give me my Nobel prize. That darn Hawking stole my other one for his obvious theory that black holes decay (nothing lives forever)
However, that doesn't mean that negative mass matter can't be continuously created
and that's were I got lost. I fail to see how a theory can be dependent on something so fundamental, yet fail to account for it.
There is also the question of how a negative mass fluid would react with other n/mass fluid particles around it. If positive masses attract each other, and a positive-negative mass interaction results in repulsion, how would two negative-mass particles interact with each other?
politicians are like babies' nappies: they should both be changed regularly and for the same reasons
because math allows it. But not everything is real what math allows. Just look at the epic failure of SUSY or read "Lost in Math: How Beauty Leads Physics Astray" from theoretical physicist Sabine Hossenfelder.
"However, studies have shown that the force driving the accelerating expansion of the universe is relentlessly constant."
And there are several studies which claim that the accelerating expansion of the Universe is an illusion. I think it would be simpler(?) to explain the galactic rotation problem and/or the Bullet Cluster without dark matter with a model. And if that model also says something about the expansion of the Universe which matches the observations that would be an extra. But no model should be built upon solely on the accelerating expansion of the Universe.
"It therefore appears that a simple minus sign may solve one of the longest standing problems in physics."
I have read a study which claimed that the bending of light around a galaxy was consistent with the velocity of the stars around the galaxy. That means space-time is really curved with the right amount since there cannot be any repulsive force which bends light.
A precise extragalactic test of General Relativity
http://science.sciencemag.org/...
Government cannot make man richer, but it can make him poorer. - Ludwig von Mises
I can't wait to get a hold of some of this stuff. Just think of all of the applications. I'm going to compress it, remove the wheels from my kids skateboard and attach it to the bottom to make the first real hover-board. It should make jet packs a reality too. We shouldn't need as much thrust since it will only be needed for directional control. And just think of the applications for cars. using it to repel some of the mass away from the road will make the car more fuel efficient. And if traction is lost, you can simply pump the liquid to the top of the car to regain traction. I feel like it's the 1950's all over again. Nuclear powered vacuum cleaners, robot butlers, weather control and glass dome houses are coming. I'm sure this will make fusion viable in just 20 years too.
There is a Mexican mathematician by the name of Miguel Alcubierre who came out with description of a theoretical method of propelling a solid object in space at extremely high speeds.
https://en.wikipedia.org/wiki/...
His theory pencils out as internally consistent, but when you start to match it up the the observable universe, you get into things that we didn't think actually existed - like a requirement for a material with negative mass.
Fellow Slashdotters, I need a few hundred liters of this stuff for my DIY Alcubierre drive. Anybody got any advice on how I can collect a material that starts to run away faster and faster as I get closer and closer to it?
TIA!
you mean get in front of it and have someone with more mass than you chase it towards you.
The spirit of resistance to government is so valuable on certain occasions that I wish it to be always kept alive
Anybody got any advice on how I can collect a material that starts to run away faster and faster as I get closer and closer to it?
TIA!
It's called a woman
There is this retired cosmologist called Jean-Pierre Petit, who has been pushing such a model for years, with a few papers published in peer reviewed journals. His videos are very interesting for an introduction to cosmology. Some were translated in english.
It is more likely something simple, like matter and space being the same thing with one being able to convert into the other. Thus, with matter turning into its space equivalent, the farther out you look the more volume of included matter turning into space you have and so an acceleration away from the viewer. I have an intuitive feeling that space and matter equivalence explains a lot in Relativity and QM. 50 years?
E Proelio Veritas.