/sci/ - Science & Math

[Anonymous No.9037570]

Are these people fucking serious?

[Anonymous No.9037571]

>>9037570
It's a good visualisation for brainlets

[Anonymous No.9037576]

>>9037571
>A good visualization for space warping

Are you sure you didn't write the curriculum for the class?

[Anonymous No.9037579]

>>9037571
also, it's compatible with the flat earth theory
win-win

[Anonymous No.9037905]

>>9037579
Flat earth isn't a theory, it's a fantasy.

[Anonymous No.9037929]

>>9037579
>>9037905
Fuck off with your garbage. Don;t even bring it up.

[Anonymous No.9037952]

It's a good visualization of 2D space.
You can clearly see the gravity distortions effect on 2D space, but they're only visible if you're in 3D space.

I suspect that gravity distortion in 3D space, are only visible if you're in 4D space. Black holes are the exception to this, however this is because black holes are so strong they compress 3D space into 2D, and project a 3D hologram of a black hole.

[Anonymous No.9037963]

>>9037905
That's just what the government wants you to believe

[Anonymous No.9037973]

>>9037963
Okay, but WHY does the government want people to believe in a round Earth? Who specifically gets anything out of the general populace believing this? They'd get the same amount of money either way.

[Anonymous No.9037985]

>>9037952
What the fuck are you talking about

[Anonymous No.9037988]

>>9037973
>the government tells the people the truth
>what does the government have to gain from this?
With this logic, why does anyone ever tell the truth when it doesn't affect them whatsoever?

[Anonymous No.9037998]

>>9037985
OP's pic is an accurate depiction of how gravity works in 2D flatland. Flatlanders will be subject to the effects of gravity, but it'll be invisible to them because the distortion in gravity are only visible in the Z axis, which Flatlanders can't observe. Anyone in the 3rd dimension looking down at flatland will be able to see how gravity distorts 2D space.

It's possible there's a similar effect on 3D space, which can only be observed in 4D space.

[Anonymous No.9037999]

>>9037570
you have no idea how fucking retarded academia is do you?
a few brilliant scientists surrounded by a sea of morons

[Anonymous No.9038005]

>>9037998
What is 4D space?

[Anonymous No.9038010]

>>9037998
Gravity doesn't work the same in flatland. An equivalent 2D representation of gravity would be this kind of 2D space.

[Anonymous No.9038024]

>>9038010
That's a png image.

[Anonymous No.9038039]

>>9037571
Plus it's fun to play with.

Why do so many people on /sci/ hate fun?

[Anonymous No.9038043]

>>9038005
It's like space, but 4D.

[Anonymous No.9038045]

>>9038043
4D space must be like, a chair that sprays quarks on your face or something.

[Anonymous No.9038047]

>>9038045
4D space is a wreath of pretty flowers that SMELL BAD!

[Anonymous No.9038074]

>>9037973
okay WHY do you take such shit bait

[Anonymous No.9038086]

>>9037998
That's actually really cool. This pic >>9037952
is really good to visualize it. Thanks for sharing

[Anonymous No.9038093]

>>9038086
This is just my thoughts tho. Not sure how accurate it is. Please be accurate.

[Anonymous No.9038096]

>>9038093
It's not accurate at all.
You can't bend space. That's silly.

[Anonymous No.9038157]

>>9037570
Do you have better ideas to illustrate space warping due to gravity to newcomers to science?

[Anonymous No.9038202]

>>9038157
Yeah. Never.

[Anonymous No.9038230]

>>9038096
sigh.
https://science.nasa.gov/science-news/science-at-nasa/2011/04may_epic/

[Anonymous No.9038236]

>>9038093
Also to add some more of my thoughts, what I said previously implies that our 3d universe actually exists within a 4d universe. How is this possible? Well if you look at black holes I think they're really a 2 universe within our 3d universe. Gravity has compressed and warped our 3d space so much that it converts it into 2d space. The event horizon, or surface of a black hole is like an entirely different universe. Photons can't move out of a black hole, but they can move laterally on it's surface. Matter can't move out, but it can move latterly. This makes the event horizon of a blackhole into flatland, and the shape of a 2D universe would be a sphere. This implies that our own 3d universe might actually be the event horizon of a blackhole in a 4d universe, which would mean the shape of our universe is a hypersphere. It would also explain why our universe is expanding. As the 4d black hole keeps gobbling up matter and space, it grows larger, increasing it's surface area, and thus increasing our universes 3d space.
Just my thoughts. Not sure how accurate this is. Take it for what that is.

[Anonymous No.9038244]

>>9038230
Just like that time they detected the gravity waves of two black holes colliding some 200,000,000,000 light years away.

[Anonymous No.9038245]

>>9038236
I think that you are on the correct path. I recently read something that the objects that fall into the event horizon "exist" on their surface, which solves the problem about where all that matter "goes".

But don't quote me on that.

[Anonymous No.9038253]

>>9038244
>200 bn ly
not likely

[Anonymous No.9038263]

>>9038236
also just a super crazier thought afterthought. Our black holes compress 3d space + 1d time into 2d space + 0d time.
What if our universe (3d space +1d time) is the result of a blackhole that exists in 4d space + 2d time. How would 2d time even work?

[Anonymous No.9038267]

>>9038236
I'm just going to give it to you straight, because you're a good man/woman, but you're just being strung along.

There's no 4D universe. There isn't even a 3D universe.
Co-ordinate axis aren't dimensions. So we only have one dimension, and that is ours.

Gravity does not compress or warp. Gravity is the conjugate to magnetism. That's all.

There are no photons, light is a coaxial wave through 'existence'.

There are no black holes, at least not in the way we think there are.

The universe may or may not be expanding. Red shift isn't the distance, but the age apparently.

[Anonymous No.9038271]

>>9038263
There is no time You've been tricked. They got you.

[Anonymous No.9038276]

>>9038236 (You)
also just a super crazier thought afterthought. Our black holes compress 3d space + 1d time into 2d space + 0d time.
What if our universe (3d space +1d time) is the result of a blackhole that exists in 4d space + 2d time. How would 2d time even work?

This doesn't feel right to me because even if space can be compressed into 2d space, you can't completely eliminate time. Can you? It just doesn't seem possible. Still it's interesting to think about the possibility of multidimensional time.

[Anonymous No.9038278]

>>9038230
Why wouldn't you record this experiment?

Damn son, with all these postulates and proofs why, even prove it.
You know you're good when people are just taking you by your word.

[Anonymous No.9038285]

>>9038276
>Multidimensional time
>Eliminating time
>2D time
>0 time

Anon please.
Please stop this madness.

[Anonymous No.9038556]

>>9038285
>Please stop this madness.
NEVER!

Ok, in order for a flatland blackhole universe to experience gravity as demonstrated by OPs pic, the surface or a blackhole must have little peaks, valleys or dimples. Some places in the 2D universe that are sunken in deeper into the blackhole would be perceived as gravity wells in 2d flatland. (see OPs pic) So if the surface of a black hole isn't uniform then the time distortion isn't uniform either as some places are deeper in the event horizon than others and experience a greater time distortion. Instead of having a uniform 0d time you have something like 0.01d +- 0.00001time. Some places would have more and other's have less.
Would that mean our universe has 1.01d +-0.00001time? Are there some places in our universe that could have a minuscule amount of multi-dimensional time?

Also, on an unrelated note, what does it feel like to loose your mind?

[Anonymous No.9038992]

>ctrl+f
>metric
>0 of 0 results

Please stop. Then enroll yourself in a GR class.

[Anonymous No.9039239]

>>9038992
Fuck your GR class.

[Anonymous No.9039242]

>>9038556
Anon there's no time.
there are no black holes either.

[Anonymous No.9039280]

>>9037571
I bet you use water analogies for explaining electricity.

[Anonymous No.9039282]

>>9037998
Did you ever notice that the dude has no way to get into his bedroom?

(but he does have a way to get from his bedroom to his daughter's)

[Anonymous No.9039296]

Does anybody else remember those machines typically near the front of the grocery store where you put the quarter in and spins around and around until it falls into the hole (unless you're a cheap little jew, in which case you catch it before it falls in)?

[Anonymous No.9039303]

>>9039296
OH NOOOOOO

[Anonymous No.9039335]

>>9039280
What else is he meant to use? Beads? Wet bread crumbs?

[Anonymous No.9039352]

>>9038556
time is space. it is a dimension of space we perceive as "time". welcome to plato's cave.

[Anonymous No.9039365]

>>9039352
No it's just a measurement. It's not a dimension.

[Anonymous No.9039416]

>>9039365
nope, it is the experience of expansion and motion. it is an experience of space we call time.

[Anonymous No.9039455]

>>9039416
As soon as you say 'experience', you can segregate it.
There's no segregation. It's just motion. Don't confuse everyone.

[Anonymous No.9039569]

>>9039365
>No it's just a measurement. It's not a dimension.

Stop, please...

[Anonymous No.9039608]

>>9039280
What's wrong with that?

[Anonymous No.9039620]

>>9039608
with ac it gets awfully splashy

[Anonymous No.9039627]

>>9039569
Dimension is like an entirely different region of space.
Like a completely separate existence or universe.

[Anonymous No.9039637]

>>9039627
you have no fucking idea what dimensions means
minkowski space is 4-dimensional, one of those is "time"

[Anonymous No.9039641]

>>9039637
That's just an axis.

[Anonymous No.9039650]

>>9039620
>water cannot flow back and forth

[Anonymous No.9039668]

>>9039650
They said it gets splashy. Have you ever been in the bath and rocked the water back and forth? You get waves and it tips over the edge and splashes and everything gets wet.
You need to stop taking the bait.

[Anonymous No.9039784]

>>9037952

>He only understands extrinsic notions of curvature on a manifold

Git gud

[Anonymous No.9039798]

>>9039784
THERE'S NO CURVATURE TO SPACE REEEE

[Anonymous No.9039828]

>>9037570

[Anonymous No.9039837]

>>9039828
>Existence is defined by approximation equations

Sad.

[Anonymous No.9039896]

>>9039784
MY BODY MY CHOICE

[Anonymous No.9041731]

>>9037905
big bang theory and evolution are fantasies.

[Anonymous No.9041743]

>>9037973
it's actually simple once you start noticing the various changes and edits to antarctica on google earth.

The curvature math doesn't add up


also none of Eratosthenes works don't exist yet used endlessly as proof the earth is a ball.

4chan will outright censor flat earth threads and others will just ad hominem you.

the fact is that the flat earth conspiracy is the reason scientific advancements havent occured in recent times outside of simple improvements

quantum physics in themseves are theoretical yet preached as fact.

the existence gravity is not self evident, and my belief in gravity is based enntirely on expirement.

therefore Earth is flat as it appears

and on

[Anonymous No.9041756]

>>9039280
At least they make sense

[Anonymous No.9041825]

>>9041743
You are right, there is no explanation for your image.

[Anonymous No.9041871]

>>9038276
>>9038245
>>9038236
The event horizon isn't a 2D plane where objects can exist its a boundary line created by the singularity of the black hole warping space.
Light cannot escape because on the inside of the event horizon there are no directions in space that point away from the black hole. It basically swaps space and time-- within the event horizon, space only goes in one direction: towards the center. You cannot halt your forward march into the black hole, in the same manner that time marches on, so too does space.

[Anonymous No.9041974]

>>9038276
>2d time
See: imaginary time, Stephen Hawking

[Anonymous No.9042462]

>>9038157
The problem is that idiots wrongly suggest that the component of the curvature being illustrated makes a non-negligible contribution to ordinary gravity. You can tell this is what they are doing in the picture because they are rolling balls down the slope. That illustrates nothing because the balls do not follow a geodesic. You want to use that as an illustration, you have to probe it with something that follows a geodesic, like a flexible ruler. You will find that the effect being illustrated causes attraction toward the massive body, but only for moving objects. It is a significant contribution to gravitational lensing of light, but not to the weight of your mother.

To understand ordinary gravitation, you have to be looking at the space-time components of the curvature. An analogy you can make is to consider the curved surface of a globe. Then pretend that latitude is time. Consider two longitude lines. As you go from south to north, the distance between them increases, then reaches a maximum, then decreases, just like what happens to the distance between two objects being attracted to each other by gravity as you go from past to future.

[Anonymous No.9042701]

So many triggered autists. Its just a demonstrate gravity's effect with respect to distance is non-linear

[Anonymous No.9042869]

>>9037570
whats the problem here?

[Anonymous No.9042874]

>>9038267
pseud

[Anonymous No.9042878]

>>9039242
theres a difference between a spacial dimension and a temporal one

[Anonymous No.9042880]

>>9041743
>smart phones
>the internet
>mars robots
>tactile prosthetic limbs
>quantum computers
>oled wallpaper
>the large hadron collider

no significant advancement at all.


were only crashing atoms together at nearly light speed and communicating instantly with most people in the world simutaniously with our robot limbs

[Anonymous No.9042884]

>>9037952
>he thinks any 3-manifold can be isometrically embedded in R^4.
why would you talk about something you obviously know shit about on the internet ? why would you that ?

[Anonymous No.9042896]

>>9039365
its a temporal dimension, not a spacial one. its still a direction.

[Anonymous No.9042900]

>>9039627
technically a spacial dimension is a direction in space at right angles to all of the other dimensions.

[Anonymous No.9042978]

>>9042880
>quantum computers
>oled wallpaper
>the large hadron collider

improvements to previously available technology and lhc does nothing for us .
We are still using petroleum power, which in my opinion means we regressed in technology

If it powered all the cities of the world by the lhc that'd be one thing, but it doesnt do that

>mars robots
these don't exist

>smart phones
>the internet
literally the only technological improvements.
I use them all the time, yet people are still retarded consumers.

>>9041825
but the Earth isn't a sphere .it's an oblate spheroid, and the curvature maths still don't work

[Anonymous No.9043003]

>>9039828
>space-time is like this literature that might as well be gibberish i wrote while stoned out of my mind

[Anonymous No.9043054]

>>9042978
the fuck do you mean mars robots dont exist?

the lhc isnt a fucking engine you fucking brainless caveperson.

were using every available energy source, anything else would require some sort of regression.

>literally the only

no
also, quantum computers are not an improvement on anything, theyre an entirely unique technology

[Anonymous No.9043179]

>>9042869
friction

[Anonymous No.9044364]

>>9042978
>but the Earth isn't a sphere .it's an oblate spheroid, and the curvature maths still don't work

But if you post a laughably stupid image with your post, most people will stop there and assume you are just laughably stupid.

[Anonymous No.9046813]

>>9042884

>he thinks a mathematical structure can be isomorphic to a reality of time and particularity

[Anonymous No.9048034]

>>9041743
photo on the right is taken from lower orbit, learn how do spheres work

[Anonymous No.9048043]

>>9042978
try inverting image of higher quality, you'll see no distortion around planet earth

[Anonymous No.9048272]

>>9038005
just our 3 dimensional space with time being hypothesized as a 4rth dimension, even though time has no spatiality

[Anonymous No.9048780]

>>9042884
It would be interesting to work out what the observable changes in gravitation would be if you kept the usual Einstein-Hilbert action but restricted to manifolds that could be embedded in R^n for some n.

[Anonymous No.9048786]

>>9037998
No it isn't, 2+1D gravity doesn't work anything like 3+1D gravity; it has no dynamics.

[Anonymous No.9048846]

>>9042978
XDXDXD get fukd :------DD

[Anonymous No.9048872]

>>9046813
>>9042884
>>9037952
I don't know any of these words

[Anonymous No.9048886]

>>9046813
>>9046813
fuckin rekt
kek

[Anonymous No.9048934]

>>9037905
its not only theory if you can actually prove it, then its reality

[Anonymous No.9050471]

>>9037571
Except a 4D meta gravity is necessary for it to work on a 3D space, the way gravity is necessary for it to work here. You wouldn't find this level of argument on infinity chan.

[Anonymous No.9050981]

>>9048786

Yes it does tho

[Anonymous No.9051525]

>>9042896
There's no direction.
Time it the measurement of motion against motion.

Finish. That's it.
>I walked 5000 steps and the sun moved this far over my head.

[Anonymous No.9051851]

>>9051525
speed = motion/time

>Time it the measurement of motion against motion.
>time = motion/motion
wut da fuq?

[Anonymous No.9052121]

>>9048934
fucking prove it then

[Anonymous No.9052133]

>>9048872
Maybe because you're a retarded /pol/ poster who should literally kill himself.

[Anonymous No.9052151]

>>9038245
Bingo (though that's just one idea to solve the
firewall paradox).

>>9041871
Okay, kid. It's cute that you had your first course in classical general relativity, but what you're talking about was what they were talking about 100 years ago. What the person you were responding to was correctly commenting on was a solution to the firewall paradox, a known problem with the classical idea of black holes due to information loss. It's posited that black holes have a fuzzy surface at the event horizon (with some planck lengh thickness) that holds the information. Thus particles never really "fall in."
Don't correct people if you have no idea what you're talking about. Honestly, they should ban undergrads and 1st year grad students from even posting in forums.

[Anonymous No.9052169]

>>9048934
>then its reality
Actually, it's still a theory, because the methods used to prove it may be unreliable.

[Anonymous No.9052419]

>>9048934
>>its not only theory if you can actually prove it, then its reality
says the underage american

[Anonymous No.9052921]

>>9048272
>fourrth

[Anonymous No.9052946]

>>9037905
flat earth is a theory that is in deep conflict with reality but that doesn't mean it's not a theory

[Anonymous No.9053000]

>>9052946
>flat earth is a theory

It was a theory created as satire. Unfortunately, irony is lost in the translation of internet posting, and some people took it seriously. Proof that stupid people can be made to believe anything if it comes from an authority figure, even if that authority figure was just kidding around.