isabellaliz116
190029
3226
65
#history
Oct 5, 2021 5:50 PM
isabellaliz116
190029
3226
65
#history
rottentom8hoes
Thingiverse file is over here --> https://www.thingiverse.com/thing:202774
MonchiComingAtYa
But the earth's still flat right? Perspective shmersmective
FjordFiskursson
He does no such thing.
TheeKingsWit
this never fails to blow my mind and give me at least one day worth of "falling asleep" thoughts. Take my +1
cptcr
So is earth flat or extra curved?
jjMan72
Ok, now do linear fourth dimension!
EgglyBagelface
NERD
Killerfishmonkey
Video game textures
padillafedericosr3842
Murph!
IAmGORT
foobar26
Isn’t a plane two dimensional?
WTFisUnderwear
NotTinyPancakes
Dog energy Chandler has
stankenstein
https://www.tandfonline.com/doi/full/10.1080/0025570X.2020.1790969?scroll=top&needAccess=true ^sauce
copingcabana
Math. Not even once.
LesbianRedwings
@ScorpionSage
ScorpionSage
AbdElRahmanTalaat
WilLAMetteValleyWatcher
oh I always have to correct this one: a Euclidean plane can be obtained as a result of a projection of a set of circles on a sphere.
WilLAMetteValleyWatcher
and thus there is a mapping that makes a surface look 'flat'. Basically any map used in navigation is in an example.
Kuultar
Not entirely sure what this means for us but when I see that the image is posted at 4:20, I know what to do
yankinmyD
userfriendly19777
Gravity is a product of time.
ThrowAwayAcct0000
And mass, I would think.
YourFriendlyNeighborhoodCanadian
MURPH!
filiuspelei
As a mathematician its BS philosophy. Yes, manifolds are locally diffeomoprhic to R^n. Thats why we can do geometry. No big deal.
delphinart
Lies. Real life is actually played on a cone because it was easier to design things that way back in the day.
NotTinyPancakes
Did they wear onions on their belts then too?
CyborgScribe
As was the style
rodgertheshrubber
'henryseg' on thingiverse sounds like the same lad: https://www.thingiverse.com/thing:202774 Not sure I follow the 4d space-time connection
Joshuasm
Anybody know where I can get the 3d print file for that?
whooptydoo
look on thingiverse for stereographic projections.
ExistentialDreadlocks
It's 4D, pay attention
Joshuasm
Well done sir.
Moufangloop
For god's sake can we all stop making shit up! This is a Riemann projection ( https://en.wikipedia.org/wiki/Stereographic_projection ). 1/5
Moufangloop
It's a map from the sphere (except one point) to the plane, or from the plane back to the sphere. He 3d printed the shape that maps to a 2/5
Moufangloop
grid on the sphere. There is no spacetime here. There is no fourth dimension here. This feels like those people who abuse the word "quantum"
Moufangloop
to sell you essential oils. If somebody has a link to the actual source of this is which the author actually links this to relativity 4/5
Moufangloop
Please post it. 5/5
deathofrandom
Am I missing something? Cause that's a 3d shape and a 2d shadow.
ExceptFluffyDuck
The description is whack.
OriginalSyn
The image demonstrates a linear 2d plane using a projection of a curved 3d plane though as an analogy because of monkey brains can't fathom
K1d1caru5
Analogies are certainly different than evidence. I could use a cat to describe a dog and would be pretty close it missing a few key things
blankiDriver
Yep, this. Glad someone said it before I had to
Icantgoogle
That's like a Riemann sphere with extra steps
ImmaCatImmaSexyCat
That and everything we interact with is a 4D being projected onto 3D.
pseudopseudonym
It goes the other way around. The 3d is just a projection from 2d.
Wor3q
I ln the highschool we used to play 9 dimensional tic tac toe. 99% of it was arguing if tree crosses were in line or not.
K1d1caru5
Was it 9 dimensions or 3 dimensions with 27 total boxes
Wor3q
It was a actually 2 dimensions, because we played on a chalkboard. This projection was what caused so much confusion ;)
toxcrusadr
How....how does that work?
Wor3q
You just draw 9 9x9 boxes. Fuck, i can't count. It was only 6d... Still lot of fun.
VonSplosion
2D= 3x3 grid, 3D= 3 3x3 grids, and 4D= 3 sets of 3 3x3 grids (which is 9 grids), so it’s technically only 4D.
Wor3q
3^2 = 2d. 9x9 = 3^4 = 4d. 9x3^4 = 3^6 = 6d.
thrashingcows
Few years back I read an article about how our Universe might be the event horizon around a 4D black hole.
Atomic2
So by that logic, our 3d black holes might have 2d universes nested in their event horizon? Got a link?
thrashingcows
Found the magazine…Scientific American Special Collectors edition Winter 2015. Article is called..The Black Hole at the Beginning of Time.
thrashingcows
It was in magazine form, might still have it around…will see if I can find it.
treed240z
The 4th dimension is time...so what the hell is this thing talking about?
Ber4nger10
It's talking about a 4th *spacial* dimension.
CyborgScribe
Different 4th dimension. I have no idea where this time being the 4th dimension thing comes from. This is about spacial dimensions
Ber4nger10
https://www.youtube.com/watch?v=N0WjV6MmCyM Carl Sagan explains it very well.
Ber4nger10
We observe 3 spacial dimension and time. But you can mathematically show that it's possible to have more spacial dimension than 3. Some >>
Ber4nger10
versions of string theory only work if reality has 11 spacial dimensions. We just can't observe them but the math can.
TheDayTheBrainStoodStill
Time is *kind of* a fourth d. - it's not quite the same as the regular three. This is describing an actual fourth d. equivalent to XYZ.
TheDayTheBrainStoodStill
People often describe time as the fourth dimension, but in this case this would be a real fourth dimension and time would then be the fifth.
Sagsquatch
we cannot see time like we can in the other 3d's. We see/experience moments of it but cannot see time, is this better?
treed240z
So how does this let us "see" time?
RideTheStimutacs
A good example of 4D space is a traffic jam that still exists after the blockage is gone. It's a 3D space affected visibly by time.
Sagsquatch
it doesn't. We'll never see time like we do the other 3d's. To do so, we would have to exist in 5d's. This is saying that our dimension 1/2
Sagsquatch
is a projection. I believe that this is about 4th dimensional black holes, but i'm just an old dispatcher, not physicist
whooptydoo
really nobody knows wtf is going on beyond 3 dimensioms, other than ther is *something*. some theories say higher dimensions are like nano
whooptydoo
or microscopic layers on top of ours, which would explain how light behaves both as a particle and as a wave. personally i dont buy into a
whooptydoo
4th dimension that is to us what a 3d world would be to a 2d creature.
APointlessBee
Can someone explain better?
FjordFiskursson
It's bullshit.
TheCrazyNorwegian
The flat bit is the shadow. The thing casting shadow is not flat. Wow. Such amaze. Sciency
happyinatl
How a thing behaves over time given curvature + time
Sepheroth9000
Magic.
Pillmatic540540
Sure, no problem! "Better" is like medium quality. It's a step above "good" but not quite at the level of "best". Hope that helps!
filiuspelei
As a mathematician its BS philosophy. Yes, manifolds are locally diffeomoprhic to R^n. Thats why we can do geometry. No big deal.
HaloArchitect
ThankYou.gif
SigynRose
It’s like Plato’s cave allegory!
MrSyth
Take 1 point (the bulb). Draw lines from bulb to each single point on object. Extend those lines until they all have the same Y value. Boom.
purplespaghetty
Is this also why acceleration increases at curve, but speed remains constant. Why airplanes don’t fly straight lines. ??
Leithoa
All points in time are equally real. Future and past are artifacts of how we experience the world not descriptions of physical direction.
Tuoni
Wibbly wobbly, timey wimey.
NotTinyPancakes
Jeremy Bearemy
YeOldeImgurian
You can make "normal" 2D from weird 3D, and our "normal" 3D is technically just weird 4D.
ahorseelbowdeepinme
EILI5
ButterfaceTaintClown
https://youtu.be/2DIl3Hfh9tY
kn1fe79
That was a nice mindfucker.
Styxwash
light only shine one direction
4554073
It's a representation of 4d in a 3d model projecting a 2d shadow explained by someone with 1d.
LibertyWright
Isn’t this calculus? Derivative of one dimension is the lower dimension? Been about 30 years so have to ask haha
BobTheWeak
Linear Algebra is fancy calculus, and it specializes in transforming things into other dimensions (ex. 3D world to 2D monitor)
HaloArchitect
*facepalm* Nonononono! Linear algebra is algebra, not calculus. Yes, it's used for transformations, and it can be used *with* calculus.
BobTheWeak
Linear Algebra manipulates things into different dimensions (ex. 3D world to 2D monitor). You can use those same transformations to get 1/2
BobTheWeak
around the infinities in black holes, explore the geometry & curvature of space, and other things you can't do with normal math. 2/2
BobTheWeak
He created a fun object to attempt to show how higher-order dimensions can project simpler ones (4D => 3D => 2D). But math is confusing. 3/2
KeepToYourLane
Yes, it means the Earth is flat.
IHaveCreatedThisAccountSoICanBeEvilOnline
Basically, our universe is the shadow of a 4th dimension
culinarydream7224
This is my favorite explaination. All 10 dimensions in 12 minutes and it's easy to understand https://youtu.be/XjsgoXvnStY
stillnotavarsityathlete
.
BootsCatsBeeeeeeez
Neat!
mybestsobriquet
This is one of my all time favorites. Elegantly simply, and profoundly complex. Changed my perception of "everything".
The7thBean
The shadow is what we see, while the globe thing is what's actually there.
Ohyesireallydidthat
imagine playing a 2D game. Theres up, down, left and right. That's how it is, that's how it looks. Now imagine some 3D boss in the game>>>
Ohyesireallydidthat
That'll just skip dimensions and appear out of nowhere, but everywhere. it's because he's in 3D. He can move where you can't move>>>>>
Ohyesireallydidthat
We're in 3D. we can move i certain directions. Now imagine a fucker in 4D. who knows what can appear out of nowhere. Who's in the 4D realm?>
Ohyesireallydidthat
Why didn't they contact os yet? Did they actually interfere with us already? Who knows, because all we see is a shadowy rectangular pattern
Skizmo
Imagine living on the flat part (like our universe), but unable to see it isn't flat at all.
omuaomua
yes... Carl Sagan... https://youtu.be/UnURElCzGc0
AlkeneThiol
I've hung out by his grave twice. Both times, nothing happened
jojosburritoadvantages
Yes! I was hoping someone would post this here.
toddlerfights
.
itzwibble
Thanks
ironknickered
ALL HAIL, SAGAN.
KevorkianScarf
I really hate to say that my intelligence and/or imagination is too low to be able to understand 4th or greater dimensions. That saddens me
Elnauriel
That was great! Thanks for posting it. =)
innagaddavidababy
Christ, he’s good.
Rogermooreseyebrow
Better means, less bad ?
TakuanSoho
and France is bacon
Atimlotus
maholt
Basically, Henry Segerman says double D's are better than single.
musicgeekification
I mean… he ain’t wrong!
BradBehavior
But anywho. That's how we got triple D.
BeckyBond
Only if you aren't the individual having to hoist those double D's around daily.
jrredneck
Many people would be willing to help support the load.
ireallydontcareman
Be sure they want to support your load in return first.
jrredneck
Always ask for consent first. Gotcha.
eeyrjmr
So basically there is a dimension above ours wanting to break in and take our tacos
derrymerbles
Hahaha I came back to give you your well deserved +1
FunnyPlatypus
Well they’d better fucking not! *switchblade pops up*
jombagimbley
With a penlight.
aflarge
Dimensions aren't like, planes of existence, they're just dimensions. We can comprehend four by default, length/width/depth/duration
aflarge
Smart people say the math implies a bunch more, but all I can do is quote people, I don't really understand it.
billtopia
But the real question is are they trying to take our tacos?
aflarge
I suppose a 5th dimension could be like, iterations of the timeline, and the 6th would be iterations of that, etc. It's possible that our-
aflarge
-timeline exists to create tacos, but they have not been perfected yet. Once they have, the harvest begins.
111111111111111111111111112
True wisdom
YouHaveNoodsAndIHaveAnInbox
There was even something fairly recently about dark matter theoretically being mass that is only occupying a dimension we cant directly >
YouHaveNoodsAndIHaveAnInbox
Observe, but we can observe its affect on stuff we can see, or something like that. Very neat sounding stuff.
Brunitski
I remember reading something very similar years ago around string theory and riemann manifolds (I think) as a way to explain why gravity…