We still need to develop the equations for reality whatever that means
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I respect physicists for doing something I can’t. Realistically if I had the money and time, I could pursue a degree in it, I just need my work to be less abstract to stay sane.
See also: spin.
It’s mind blowing to me that particles with no inherent physical shape or dimension can be considered “spinning” not because we observe them spinning but because they have literally all the characteristics of a spinning particle other than actual rotation around an axis
Look man everything else is spinning so why not the tiny bits too
How the fuck did I miss that we already had the perfect emoji for this?
it is really hard to remember all our emojis
spin is something that behaves like spin. the right answer is shut up and calculate
WE SPIN. WE BALL.
Is that why spin doctors get paid so well?
Meat has been shown to have spin also. They made a website about this
https://youtu.be/MmG2ah5D*removed*?si=aFNBbP7FgeQ4AhAo thought this was a good and broadly simple explanation
Unfortunately the algorithm has censored that url :(
https://is.gd/Algorithm link redirect
Spin is easy, it just only shows in our current formulation of quantum mechanics, has no classical counterpart, is sort of a type of angular momentum, but isn’t, whatever shut up.
So here’s my lunesta fuelled dea on gravity.
Gravitons, like the rest of the standard model, are real. In order to measure them, we need incredibly high energy collisions.
In attempting to do this, our universe was created on accident. This is because our universe is in a black hole. But the cool shit is that black holes are really portals into our own universe. Instead of the energy spontaneously appearing as measurable particles, it’s dark energy causing the expansion of the universe. The Dark energy ends up being gravitons, because gravitons are a boson and only interact with matter with the gravitational force. the black holes, then, take in “normal” fermions and bosons and spit out the gravitons. The graviton release causes an expansion of space time by “pulling” space time with it.
none of that is backed up by anything
You’re sure the universe wasn’t created by purpose? You’re sure it was on accident?
Missing a few turtles.
Turtles all the way down.
Don’t forget the elephants!
Add some string theory into the mix and it’s indistinguishable from Michio Kaku rambles.
That particle accelerator really was the peak huh?
Show us on the PhD where they hurt you.
Somewhere in the region between the unrealistic deadlines, the post grad job prospects, and the price tag, sir.
TW, please.
It’s not difficult. Gravity is like magnetism for things that aren’t magnetic.
Also for those that are magnetic
I will assume that to be true, because it makes sense.
gravity applies to everything with mass. But also light which has no mass.
Yeah… about that… I have nothing clever to say.
Our laws of physics aren’t really suited for it, and everything seems so round-about that it looks like that time when people tried to argue for having Earth be the centre of the solar system. It’s all just patches to something that we know isn’t that simple.
Photons have no rest (invariant) mass, and gravity doesn’t directly affect photons, but does warp the spacetime that the photons travel through. That said, photons do possess energy which can also affect things gravitationally, even other photons.
So… you’re saying we don’t know what gravity is
Well you can say that about anything can’t you?
wE dOnT kNoW wHaT rEd iS!
We can name thousands of variations of the color red, we can measure the wavelength of the light that produces the color red, we can build machines and devices that manipulate matter at the quantum level to produce the color red, and yet… it’s still impossible to actually say what red is, and no one knows if what they perceive as red is the same as what others perceive.
So ya we don’t “know” the ultimate true nature of gravity, and yet…
…even babies and simple animals learn and understand that gravity exists, and we can measure gravity to astonishing levels of accuracy, and we understand gravity enough that we can launch a rocket up into space that then launches a probe that can travel millions of kilometers through space over several years and land on the surface of a comet that’s travelling tens of thousands of kilometers an hour, but ya… “we don’t know what gravity is”
If you can spend your entire life studying the mountains of data and literature that we have amassed about a topic, then is it honest to say we know nothing about that topic?
This isn’t the first time, I’m hearing about light being affected by gravity, but like, are we saying that electric fields and magnetic fields are not affected by gravity… except they are, when they oscillate back and forth in the form of an electromagnetic wave?
My understanding of EM fields compels me to say that they are affected by gravity because the mediating particles are.
I’m guessing by “mediating particles”, you don’t mean those affected by fields, but rather those ‘propagating’ the field, i.e. photons.
And well, my research tells me that photons don’t really exist. 🙃
Well, particles don’t really exist, in the traditional sense. They’re not solid balls flying through space. They’re rather just peaks in the EM and gravitational fields. And then, if you’ve got a disturbance in a field, a peak or wave will travel along the field, which propagates that disturbance. And if you’ve got all that internalized, then you could call that peak/wave a “particle” again.
Here’s a rough source / different explanation of those claims: https://physics.stackexchange.com/a/201
But yeah, I don’t think this particle analogy is helping us here. We’re ultimately still just talking about a field being affected by gravity.
(Still, thanks for the input. I’m sorting my thoughts as I go, and reading that I’ve also been subjected to an unhelpful analogy is helping it make sense.)
I also like to say that particles don’t really exist in any sense one would associate to the word. And to be pedantic, we can’t even say that particles are peaks in a field because that is merely how we model it, and that model is incomplete.
Since we don’t know what gravity is or does, nor what (or if) a field is or what particles are, it’s hard to answer a question like whether a particular field is affected by gravity other than in terms of a specific model and hope that corresponds to real observations.
In this case, our best bet is to reason in terms of known properties of what we think of as particles mediating the field in question. Photons are subject to gravitational influence, and so we expect EM fields to be as well.
Sweet just tell me how to find same polarity gravimagnetics to put under my hoverboard
You just need some isolated antimatter.
Available at your local Fal-mart.
Or matter with negative mass :)
Yeah but if you scratch a little bit the surface, the comparison falls quickly. Okay, magnetism has two signs. Why not gravity ? Why does it attract and not repel? Okay, magnetism is carried by photons. What carries gravity?
Wrong. Magnets don’t float.
This is why I laugh at anyone who thinks we “Already know anything” or ever will
Just say everything is a simulation and it makes a tech employee sound like a keeper of secret divine knowledge that lords over everyone else.
At this point I take Simulation Theory about as seriously as someone saying “So, Creationism, but like, with a few more steps and a sci-fi horror twist!”
It says a lot that so many bazinga brained “simulation theory” enthusiasts want the billionaires to “hack/crash” the supposed simulation either to escape it or for the lulz. Death cult with extra steps.
This is just gnosticism with extra steps.
I mean I would like to escape the simulation, or at least match it, maybe add some mods to change some of the characters around. I think the quality of the simulation would be improved if I was a large breasted tiger lady with an ass that just won’t quit
That’s personal desires which are cool and good, not the “dae le elon is going to cause the simulation’s first server lag spike by detonating a chain of le nukes in le space” death drive that so many computer touchers currently have regarding the concept.
My mind broke trying to follow the logic of someone dumb enough to think that letting Elon have nukes or randomly blowing them up in our atmosphere are a good idea or that enough explosions will crash Paper Mario in real life…
So trying to think like someone who believes all three. Hurts
It was a highly upvoted /r/WritingPrompts circlejerk on
. I hated that sub so much because 95% of its “prompts” came pre loaded with the le clever plot twist from the start so it was just /r/GhostWriting with a different name.
Everyone always asks what is gravity.
No one ever asks how is gravity.
Poor gravity, always helping us keep our shit together but no one ever truly understands the weight on gravities shoulder.
Excuse me, but I don’t see why I should have sympathy with the boot on our necks keeping us all down. Just imagine the freedom we would have if we weren’t weight down by this oppression!
dies b/c the atmosphere floated away
“I get it! Platypus is a metaphor for whatever’s keeping you down!”
Gravity is a platypus
Gravity is just the world trying to put all the stuff in the same area of space to waste less RAM
Random Access Mass
Christopher Caudwell has some pretty excellent critiques of bourgeois science. Scientific progress has stalled because it is no longer profitable for the bourgeoisie, and the world’s best scientists are all bootlickers, at least inside the imperial core. There’s a reason the best physicists in the 20th century were all communists. But China thankfully is turning this situation around.
Every American researcher works for advertising companies, even if they don’t realize it.
Baby don’t hurt me, no more.
You okay op?
I’m in geoscience. Physicists are nerds. Touch grass, ya dweebs. We wear hiking clothes on campus and we aren’t going on fieldwork until July. It’s called dedication.
paleo, from the look of it. Vert or environmental?
Archaeological, pollen.
nice! I had a friend do a project on paleo-pollen once, getting core samples was fun!
Im a physicist and I took your advice and typed sudo touch grass and it said I don’t have grass on my pc, what do I do?
I hear there is a really cool built-in black hole simulator if you input: sudo rm -rf /
spoiler
don’tdothislol
sudo touch grasswould actually make an empty file called ‘grass’ in the current directory, assuming you have root privileges
“The nature of this elementary particle is best expressed through these thirty equations.”
“Ok, ok, but what do those actually mean in reality?”
“Reality?”
Most of those equations are full of things that can make sense, and then there is a fine structure constant.
It’s all over particles, but we don’t know what it is. It has no units. It’s just a number that is needed for physics to work.
Sounds a lot like what we used to call the “fudge factor”.
[The Fine-structure Constant] quantifies the strength of the electromagnetic interaction between elementary charged particles.
Why the constant should have this value is not understood, but there are a number of ways to measure its value.
Sounds like we know what it is, we just don’t know the reason for its value. (Edit: Unless I’m misunderstanding what you mean)
The strangeness of the Fine Structure Constant isn’t it’s value, it’s that we don’t know what it is.
Other constants have units that explain what they are doing. Like converting miles to meters we multiply by meters/miles. But this is just a number that is needed. That’s so strange I can’t think of another example.
Meh, there’s pi, it has no units because it’s the ratio of one distance to another…
I feel like this might be another example of OPs meme. Feyman called it a magic number we have no understanding of. It’s one of the great mysteries of modern physics.
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