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Honest noob science question: is gravity as defined with Einstein’s space-time time definition mean it ceases to be an actual “force” …? Like, two masses affecting each other through gravity is not like two magnets but rather space-time “bending”?
it’s still a force, produced by a field (in this case curvature), although alternative opinions are available: (linky to pbs spacetime)
Supermassive Blackholes: “Gravity is weak, huh?”
I read this in the voice of Charlie from It’s Always Sunny in Philadelphia
I thought the parliamentarian struck down the law of gravity
Nope. Gravity goes both ways. Actually it’s the curve of space time pushing you toward another mass. And you can only overcome because your mass is puny next to the earth.
Did he just tough-talk the curvature of space-time?
You didn’t overcome it, you spend some energy that the earth will eventually get back.
Unless you leave earth, gravity will eventually win.
Can’t even win then. Gravity isn’t just on earth. It’s a universal force.
If you’re hot enough and place a mirror below you blackbody radiation should do a pretty good job at preventing that. If you’re not that hot you might need extra patience and without the mirror it might not be too effective.
Now that I think about it this might be considered as parts of oneself leaving earth though.
The house always wins.
They are launching objects to space accidentally, doing it intentionally cant be that hard
Nobody trips, falls, and detonates a nuke.
People try to hide obvious mistakes they make. Nobody is going to go on a stage and scream “I ACCIDENTALLY DETONATED A NUKE”
Clearly the tripwires in your basement aren’t hooked up to traps nearly as fun as they could be.
And you wouldn’t download a nuke.
Gravity’s so powerful, it’s letting you win this round just to remind you who’s really in charge when you drop your phone
Yeah but ain’t no motherfucker gonna soon be jumping over onto the moon with pure human leg power. Still gotta detonate a slowly exploding bomb under our asses to leave this rock-covered ball bearing.
Yeah, go ahead, how long can you keep it up? The earth can wait longer than you.
Just lost faith in my muscles
There goes all our bragging about humanity’s physical superpower being endurance.
Challenge accepted
True, however… as you press into this planet, this planet presses into you.
Gravity is the weakest fundamental force, yes. At least, at relatively close distances. The advantage gravity has is that it never quite goes away, no matter how far you are.
Electromagnetic doesn’t go away either. It’s that damn negavite charge neutralizing the stuff.
Sounds like a stalker.
I mean yeah but also you reverse that square enough and it’s effectively zero
But never actually zero, unlike those other quitter “forces”
Is that actually true? I’m not an expert but I thought all forces extend our into infinity. I thought we just allowed them to go to 0 at a certain radius for the sake of making the math manageable.
Nah, at some point the simulation we live in is going to round down to save computing power.
Are you the mirror universe version of DarkViperAU?
Is that simulation in the room with us ri
WARNING: Unexpected false vacuum decay. Reverting current state. 3,245,333,345,728,345,876 recoveries until reboot.us right now? Hurrr durr
WARNING: Unexpected false vacuum decay. Reverting current state. 3,245,333,345,728,345,875 recoveries until reboot.
Not the person you replied to, and not really an expert either, but I can tell you that the W and Z bosons (force carriers for the weak force) are very short lived and can only travel through space so far before they decay. This effectively puts a cap on the distance of weak interactions.
Strong force is the same.
I don’t know if it’s shorter than the weak force, but you gotta be in an atom’s nucleus to experience it
Edit: i just realized I may have confused people - strong force has a limited distance, not that it’s because they decay.
Edit 2: If i ever got a PhD or master’s even in Physics, id probably write a book on how “The Universe Demands Laziness.” Because pretty much everything in physics ends up with a system taking shortcuts to save a little bit of energy.
If i ever got a PhD or master’s even in Physics, id probably write a book on how “The Universe Demands Laziness.” Because pretty much everything in physics ends up with a system taking shortcuts to save a little bit of energy.
This is how I teach both physics and chemistry. Electrons are lazy - they’re going to chill in the lowest energy level they can. They fill in sub shells like people getting on a bus - you aren’t going to sit next to someone else unless you have to, you’re going to sit probably as close to the front (nucleus) as you can.
The strong force also gets stronger with distance
Except the energy required to increase the distance between the particles is enough that it ends up creating more particles and the distance never gets any more distancier?
I don’t know if it’s shorter than the weak force, but you gotta be in an atom’s nucleus to experience it
That’s what she said.
TIL the Univers was written in Haskell
Ostensibly sure but really it’s all hacked together perl
So this is where my inexperience kicks in, but I don’t understand how the strong force can function in the same way considering that gluons are massless.
The W and Z bosons having mass prevents them from being able to travel at the speed of light, and therefore they experience time and can only travel some limited distance before decaying into fermions.
But since gluons do not have mass, they, like photons, do not experience time – and so how could they have a half life?
In my mental model of the strong force I assumed that they simply were created and destroyed in an exchange between quarks – much like how photons get absorbed/emitted by electrons. But this alone does not cause a limit on the distance of strong interactions, so I assumed that mechanically any limit on the strong force’s distance must function differently.
Gluons do not have a half life?
Remember that they DO make an exchange - Gluons have color charge - red, green and blue. QCD is the magical realm of color charge.
The hardest part for quantum anything is grasping the “probability aspect” means spontaneous things can happen. In the case of QCD, as you put energy into separating quarks it becomes infinitely more likely to pull particles out of the vacuum than to separate them.
QCD is involved in fusion in a similar way - two protons will oppose each other with infinitely more force the closer they get because their charges are repulsive. The faster two protons are flung at eachother, the probability of the quarks binding increases.
Aren’t all forces subject to the inverse square law?
Dipoles are, effectively, not — so if you have a charged bit and another opposite charged bit, while an inverse relationship might exist between either one, the net effect is that it drops off much faster.
The thing with gravity is it tends to go one way, unlike, say, charge.
The advantage gravity has is that it never quite goes away, no matter how far you are.
That’s true of all the fundamental forces, though. They all drop off over distance with inverse square laws. Like if you had two lone electrons in an otherwise empty universe, their electromagnetic repulsion would also persist indefinitely at 1/r^2 strength, just like gravity. The difference is that our universe has near-perfect charge neutrality at large scales.
So it’s like humans? 🤔
We aren’t particularly strong or fast, but we became apex predators because we never. Stop. Coming.
Can you imagine being those antelope being hunted by early human ancestors -
“Ok, bob, we just bolted at 40mph for a minute or so, they’re not going to find us again.”
“Clarice, you said that the last 8 times and they still showed up! They’re unnatural! They just keep following and following us! Alex smashed his shin that last run, and I don’t know how many more times I can run myself! We’re doomed Clarice! Doomed!”
It’s basically a zombie movie, but the main character is Bambi.
They cannot be bargained with. They cannot be reasoned with. They don’t feel pity, or remorse, or fear. And they absolutely will not stop. Ever. Until you are dead.
Also, we, never, stop, cumming.
So much to cum, so much to cum,
So what’s wrong with cumming the backstreet
You’ll never know if you don’t cum
cum cum, cumcumcum cum, get ur cumcum CUM----CUM
AND ALL THAT’S CUMMING IS CUMMMM
only shooting cummmm breaks the mOwOld
(Smash mouth were so ahead of the curve, they had OwO in their lyrics in 1999)
You’ll never cum if you don’t blow
Exactly. Raise your hand. Great, you overcame gravity for a second. Keep your hand raised for a minute. 10 minutes. An hour. Fuck, gravity doesn’t stop. It’s exactly like us.
about to make ourselves go away though.
Whoops
Whoopsee
deleted by creator
Not to “Ermmm acshually” but you haven’t overcome the gravitational pull you’ve just counteracted it.
Overcoming it is significantlly more difficult.
The swirly line forms to the left.
“Not to um actually, but actually” should be the new um actually
Yeah keep it up for 10 mins and we talking again.
