Physicists Build Donut-Shaped Magnet To Find 'Ghost-Like' Dark Matter Particle (cnet.com)
An anonymous reader quotes a report from CNET: One of the central puzzles in particle physics is discovering what particle (or particles!) makes up dark matter — the form of matter that is responsible for 85 percent of the mass in the known universe. Some physicists believe searching for a hypothetical particle known as an "axion" could lead to a better understanding of dark matter and to hunt for it, a team of U.S. physicists have recently designed and tested a basketball-sized, donut-shaped apparatus that can seek it out.
It has been believed that axions may be detectable by looking at an unusual type of neutron star known as a "magnetar". These small, erupting stars create some of the most powerful magnetic fields in the universe. Because of their giant magnetic power, axions would be converted to radio waves in the presence of the magnetar -- and thus, detectable by telescopes on Earth. That strange cosmic phenomenon inspired theoretical physicists to create the impressively-named ABRACADABRA experiment (the full name is "A Broadband/Resonant Approach to Cosmic Axion Detection with an Amplifying B-field Ring Apparatus" so the theorists deserve a round of applause for that backcronym). The experiment consists of a donut (or "toroid") shaped device, dangled in a freezer just above absolute zero and fine-tuned to create its own magnetic field. If axions exist, the magnetic field in the middle of the donut could reveal them. The study has been published in the journal Physical Review Letters.
It has been believed that axions may be detectable by looking at an unusual type of neutron star known as a "magnetar". These small, erupting stars create some of the most powerful magnetic fields in the universe. Because of their giant magnetic power, axions would be converted to radio waves in the presence of the magnetar -- and thus, detectable by telescopes on Earth. That strange cosmic phenomenon inspired theoretical physicists to create the impressively-named ABRACADABRA experiment (the full name is "A Broadband/Resonant Approach to Cosmic Axion Detection with an Amplifying B-field Ring Apparatus" so the theorists deserve a round of applause for that backcronym). The experiment consists of a donut (or "toroid") shaped device, dangled in a freezer just above absolute zero and fine-tuned to create its own magnetic field. If axions exist, the magnetic field in the middle of the donut could reveal them. The study has been published in the journal Physical Review Letters.
The FARGate? Completely legally different than StarGate?
-- You are in a maze of little, twisty passages, all different... --
Preferably with prezels.
It's responsible for 85% of the mass of the known Universe, but we can't seem to find any. Yes, you in the back? No, there's no way we're mistaken, next question?
I would say that is a truly epic backronym -- someone spent some time on this one, probably because they knew their grant proposal would be in trouble is someone had to read that mouthful.
Though, it's not a nested acronym, I always like those much more.
I saw one about 25 years ago which was nested in a few places, moreso once we pointed out that things like laser were themselves acronyms ... a couple of us geekier people drew out the parse tree for it, and it ended up being about 4 levels deep and about 50 words in total.
We left it on the whiteboard for a while, and occasionally someone would try to recite the whole thing without looking like some big giant physics tongue twister. :-P
Don't go chasing axions, because they don't exist.
Then one from our study group found an American chemistry text book with pictures. It spelled doughnut as donut, but had a picture. We exclaimed, "It is a damned torus! Why wouldn't they call it a torus? Why use this weird thing donut/doughnut". In the class Prof PJ Narayanan said, "... it says doughnut in the text book. Doughnut is like a vada but it is sweet not savoury, they make in the West..."
If slashdot is going to call itself "news for the nerds" the least it can do is to call that shape by its proper name, a torus.
sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
Theorists develop the underlying theory of physics by suggesting extensions to existing laws to solve problems or by calculating what existing laws predict for given situations. These physicists have built, and are running, an experiment. They are collecting and analysing the data to test a theoretical prediction of a new model of physics which makes them experimentalists, not theorists.
Not Dead yet...
Here's the pre-print on arxiv: https://arxiv.org/abs/1901.106...
The primary result in this paper is the validation of the experimental design using a scaled-down version. From the paper:
I was arguing like you.
It took me a loong time to get through the nonsense. Nobody could give me an acceptable answer. Only smug clueless dicks. (See above.)
The answer: The *name* is shit! /"dark energy"!
In reality, the whole point is, that we measure something we did not predict, and that hence we are wrong! That amount that we are wrong by, had to get a name. And *stupidly* they chose "dark matter"
"Dunno" would have probably even be a better name.
So you are exactly right. We are wrong. *Very* wrong.
And what we are trying to find, is what that stuff is, that we measured.
And yes, we check time and time again if our measurements are simply wrong. :) Especially systemic/methological ones. Those are the best! :)
Because basically, scientists are like you: They loove pointing out our errors!
don't know what a torus is
Torus is made by Ford.
Have gnu, will travel.
You're *killing* us here!
Is one of those physicists named Homer, by any chance?
#DeleteFacebook
creimer doesn't have room for a filing cabinet in his 450 square foot closet
all his videos look like they're filmed in bin laden's cave
minus the women
They could be the former for their "day job", and do this as a fun practical project.
Funny. Creimer has a filiing cabinet in 2009.
"has" in 2009? there you go again with your time-travelling tenses chris
have you ever figured out if the childhood abuse or a genetic problem is the cause for your inability to understand time
and what is a "filiing" cabinet
and how many web presences do you need you jiggling puffed-up narcissist
even donald trump doesn't have as many websites as you
you triple-chinned menace to intelligence
I am well and truly baffled.
Memes aside, you really must love this cdreimer guy. I mean, do you remember what your girlfriend's apartment looked like a decade ago?
Stupid is as stupid does...
He never had a girlfriend - unless you count an inflatable doll and a jar of petroleum jelly as as "Girlfriend".
Coolest acronym I've seen in a while. Clever!
chris
I'm not creimer. I'm the Random AC who keeps trolling you for the random ass comments you post about creimer.
there you go again with your time-travelling tenses
and what is a "filiing" cabinet
I wrote in "creimerism" to get you trigger.
even donald trump doesn't have as many websites as you
Donald Trump has 500+ corporations to hide his money laundering operations for the Russians.
you triple-chinned menace to intelligence
Your random ass comments are not? ROFL!
How does having a frozen magnetic field here let you detect the conversion of a thing that may or may not exist into radio waves god only knows how many light years away?
Wanna buy a shirt?
https://www.redbubble.com/people/stealthfinger/shop?asc=u
Creimertards often pine away about having gay sex with creimer. They are still mad at him for leaving Slashdot for YouTube.
CLAPCLAPCLAPCLAP for the acronym - brilliant! But you won't find it because it isn't a particle - unless you have to, then you will, of course. It is a bit of denser space but not dense enough to be a particle. The only thing that came out of the beginning is space in different densities.
E Proelio Veritas.
creimer will soon see another donut-shaped magnet
in the mri machine after his obesity-induced multiple-organ-failure
Gosh, I wished there would be a word for "donut-shaped", like toric or toroidal or something...
Why must virtual particles use the same metric as non-virtual particles? Why must they scale the same way?
To give a car analogy - the topology (road) you see the car on looks flat to you. However, the topology that the virtual particles see is different. Even more significantly the metrics aren't even the same between the two.
I didn't know magnets can detect math errors causes by not knowing how gravity and space really work? Need I remind everyone that no dark matter has ever ACTUALLY been detected in any way, shape, or form (pun intended)
The issue is that the term "torus" has only entered the mainstream public vernacular in fairly recent days. The branch of math that refers to them primarily is Topology. They are referenced, defined and used in general Geometry, but aren't particularly important shapes because there are few examples of Torii in the physical universe. Do(ugh)nuts, Tires,and other things like life preserver/rescue rings make up most of the examples of that shape in the real world. There just are't that many. So, unless you were a Geometry or Topology math wonk you probably didn't know about Torii. Branches of math that use them most have only been around since the early 20th century, so they are not very "main stream", even now at present unless you're a math student or professor you probably have not heard of or ever use the term "Torii" or "Torus".
Now, Do(ugh)nuts have been around since 1847 according to the experts, so they have had nearly a 100 year head start on the public awareness of those delicious rings of fried dough. Hence, more people have heard of Do(ugh)nuts for quite a longer time than torii. Also they are called different things in different locales, sometimes they referred to their specialist examples, such as Crullers, Beneyets (sp?), Bear Claws, Sweet Rolls, Eclairs, Long Johns, Danish, Jelly Rolls, Bismarks, etc. Not all Do(ugh)nuts are Torii, and not all Torii are Do(ugh)nuts.
Anyway, TL;DR is the "Torus" is a niche technical math term, whereas "Do(ugh)nuts" is a common bakery food term, so as such it's much more in the awareness of the mainstream public.
-- You are in a maze of little, twisty passages, all different... --
even a dougnut shaped magent won't help with finding a black cat in a dark room - when it's not there. Researchers tend to forget that a dark matter is nothing more than a figment of someone's imagination.
It's just Aether. Go ahead, say it. Einstein is wrong, Tesla is right.
Today it gets hard to distinguish fundamental physics and April fools' jokes.
How about a magnet shaped donut instead. That ought to have some uses. Before I eat it.
Oh great, I wonder how many pseudoscientific conspiracy nutjob kooks will hear about this and flake out, or at least cry and fawn about how this will endanger lives, or it's going to be used for evil? Of course they will throw in the Anti-Christ, the CIA, vampires, and aliens for good measure
I apologize, but I just had to deal with somebody very recently who was into all of the aformentioned bullshit. Two days ago, that person ended up going full on kook, and pulled a knife on somebody and threatened to kill him.