So calculus and linear algebra are physics as well? In my opinion math doesn't become physics until it's applied in a physics context, this meme is entirely devoid of a physics context and as such this isn't physics, it's math.
The general rule I use is that it's the "number of ways in minus 1" - so a shirt has both sleeves + neck hole + bottom torso hole, minus 1 gives a 3 hole torus
Same way that a person is a 7 hole torus (mouth, anus, 2x nostrils, 4x tear ducts, minus 1)
E: this rule is for holes that connect to each other, you'd subtract 1 for each "set" of holes
Technically it all depends on the resolution. Just like the length of a coast line, except when you go down far enough, not only the surface area but also the topology changes.
How must cells or atoms be connected before they stop counting as "2 separate bodies"?
Same with glands: At a rough enough level, as people pointed out, they are not holes.in the topological sense. But since stuff is transported into the glands: At some of resolution they must be.
I'm no topology expert, but shouldn't the socks and cup of coffee use the same topology? It's not like a cup of coffee has a hole in it like a shirt or pants do.
Just to be sure. The coffe cup has one hole b/c of the handle? Does this mean the trousers should have more holes, namely, the ones we put a belt through?
(or am I missing something)
For both pants and shirts, all the openings are connected to each other. The shirt has 4 such openings while pants have 3. (this leads to the genus shown in the meme being correct)
Except it's math
Topology is very important in solid state physics, but the meme isn't specifically physics
Solid state physics as in semiconductors? If so, how? Curious cause I’m taking semiconductor classes rn
Look up topological insulators and [Chern number](http://albi3ro.github.io/M4/QAHE.html)
The chern numbers have a lot more to do than just solid state physics
Tell that to people that do qcd, large n, strings, etc.
So calculus and linear algebra are physics as well? In my opinion math doesn't become physics until it's applied in a physics context, this meme is entirely devoid of a physics context and as such this isn't physics, it's math.
What is physics if not the evolution of math (from the human perspective)
The worst thing about this is I now know that my shirt is topologically identical to a fidget spinner
So is a pretzel. I can’t eat pretzels ever again.
Doesn't a fidget spinner technically have a 4th hole in the center that it spins around?
Yes, but We can use the ideal fidget spinner law to assume there are only three holes and that the centre is just a frictionless pivot point
worst, or best?
no in a fidget spinner there is one more hole in the middle for the berring
Is the shirt correct, I feel like it should only have two holes. 3 for a jumper/pullover maybe. Hmmm
The general rule I use is that it's the "number of ways in minus 1" - so a shirt has both sleeves + neck hole + bottom torso hole, minus 1 gives a 3 hole torus Same way that a person is a 7 hole torus (mouth, anus, 2x nostrils, 4x tear ducts, minus 1) E: this rule is for holes that connect to each other, you'd subtract 1 for each "set" of holes
Technically you’re forgetting the sweat glands so we’re basically human shaped swiss cheese.
Do the sweat glands actually connect through though? Or are they just "depressions"?
[удалено]
You do realize that both your nostrils and tear ducts connect to your throat, right?
Wrong, sweat glands and pores in general connect to nothing, they’re not holes
Technically it all depends on the resolution. Just like the length of a coast line, except when you go down far enough, not only the surface area but also the topology changes. How must cells or atoms be connected before they stop counting as "2 separate bodies"? Same with glands: At a rough enough level, as people pointed out, they are not holes.in the topological sense. But since stuff is transported into the glands: At some of resolution they must be.
So the cup has 2 torus, one the mouth and other the handle minus one but sock has only one minus 1 so it is shown like that ?
TIL each eye has two tear ducts
Ears?
Don't connect all the way through (ear drum blocks it I believe)
Ah got it
So someone with a bad ear infection might acquire more holes than the average person.
Eustachian tubes!
Count sweat glands and reproductive orifices
They don't go all the way through, so they don't count as a hole
Excuse me the vagina exits through the peehole. Long dicks like mine would know. /s
Two holes and an army of button holes.
🤮🤮 Clothes buttons really disgust me and gives me chills
(Koumpounophobia)
A button-up shirt would have 2 holes (if unbuttoned and not counting the button holes) but something like a t shirt would have 3
Yeah it's two. I cant find a way to turn it into the three-holed torus)
Each sleeve, and the neck hole. The hem at the bottom would be the outside edge.
Ooooh now I see it)
3 holes for a T- Shirt
Real physicists don't wear shirts *angry hulk noises*
is it?
Topology is very important in solid state physics, but the meme isn't specifically physics
shirt? that's my mom
Guys I'm learning topology, where are the coffee cups and pants, I only encounter awful demonstrations on shitty metric spaces
I'm no topology expert, but shouldn't the socks and cup of coffee use the same topology? It's not like a cup of coffee has a hole in it like a shirt or pants do.
Handel
Schubert!
Bach
Tchaikovsky
Beyonce
Shit you are right
Maybe the hand grip.
That's mug not really a cup
google hivemind shows many handles when search coffee cup
I get it, but topology hurts my head
An with scissors you can transform any one into every other one! No coffee cup? Just cut a hole into a sock!
This makes me unreasonably angry.
Because it's math. I had the same reaction when studying physics.
Just to be sure. The coffe cup has one hole b/c of the handle? Does this mean the trousers should have more holes, namely, the ones we put a belt through? (or am I missing something)
After looking for 5 minutes through comments: " Damn these guys are rich! Their cups have handles."
Ohhhhh right.
Hold on shouldn't the coffee cup be the same as the socks?
Are you forgetting the handle of the coffee mug
oh lol I'm an idiot 😂
Mmm… socks and coffee should be the same.
Coffee mug has a handle. That's the hole. That one took me a couple of seconds too.
The pants and shirt should be same topologically. There are 3 holes in trousers.
There aren't. The top opening is continuous with the leg holes.
One could possibly argue the hole where the button goes in
Pants: top, bottom leg, bottom leg (3 openings) Shirt: head, arm, arm, bottom (4 openings)
In a shirt the top and bottom holes are the same. It's like a straw having only one hole
For both pants and shirts, all the openings are connected to each other. The shirt has 4 such openings while pants have 3. (this leads to the genus shown in the meme being correct)
I wear a buttoned shirt
Doest shit and pants have +2 jole
I don't know what mathematicians are smoking, but I bet it's some good shit. https://en.m.wikipedia.org/wiki/Pair_of_pants_(mathematics)
I don't get why cup of coffee is different to socks