#topology

[demonicseries]

You guys are never gonna believe what the name of this sculpture is

[ravings-of-a-mad-scientist]

Math

Geologist: I do more math than you might think

Chemist: I mean, chemical equations are basically mathematical equations. If you think about it (I also do math math)

Physicist: Oh, yeah, it’s all math but we just handwave it

Mathematician: YOU DO WHAT!?

Quantum Physicist: *regularly does math that is literally beyond human comprehension* *now resides in a higher plane of existence*

Engineer: If I don’t do this math correctly PEOPLE WILL DIE

Military Scientist: If I don’t do this math correctly PEOPLE WILL SURVIVE

Topologist: If I don’t do this math correctly PEOPLE WILL BE MOSTLY UNAFFECTED

Philosopher: But what even IS math, really? No seriously, what is it?

Organic Chemist: I kinda forgot how to do math, to be honest

Biologist: I literally only chose this field so I wouldn’t have to do as much math. I love stamp collecting

Biostatistician: wtf

[futurebird]

I don't understand how lace is made, but looking at the bobbins and pins and patterns … listen buddy I know math when I see it. This is A Math Thing. Obviously.

Right away I want to know:

Can I encode information in lace?

How much of an expert must one be to make your own patterns?

What about the creation of surfaces?

Knitting is more accessible, and people have been exploring math with knitting forever.

But what possibilities does lace offer?

What is the theory of lace?

An excerpt from Mathematics Magazine Vol. 91, No. 4 (October 2018), pp. 307-309

Shows I'm hardly the first person to muse about this. Need to get my hands on the rest of this article, obviously.

[groupoids]

[somethingusefulfromflorida]

The Topologist's Alphabet

O8IOIIIIIIIIIIOOOOIIIIIIII (uppercase)

ooloolol::llllooolllllllll (lowercase)

[more-mathematics-mor-lam]

There he is. There’s my boy!!!

[lipshits-continuous]

Mathematician trying to write a romance novel: "there exists no open set containing one but not the other"

[sixquarksinatrenchcoat]

IM SO MAD THEY FUCKED UP ITS EULER CHARACTERISTIC HOW AM I SUPPOSED TO DRINK THIS

[spectrallysequenced]

Blorbo from my math papers

Source - Using Surfaces to solve equations in free groups, M. Culler 1981

https://doi.org/10.1016/0040-9383(81)90033-1

[blake447]

Therapist: Klein bottle chess isn't real, klein bottle chess can't hurt you Klein bottle chess:

[trivalentlinks]

you should always remember that no matter how bad a knot is, it's still just a circle

--speaker at a topology conference

[mindblowingscience]

Physicists have just found something no one expected, lurking on the surface of an arsenic crystal. While undertaking a study of quantum topology – the wave-like behavior of particles combined with the mathematics of geometry – a team found a strange hybrid of two quantum states, each describing a different means of current. "This finding was completely unexpected," says physicist M. Zahid Hasan of Princeton University. "Nobody predicted it in theory before its observation."

Continue Reading.

[cerulity]

A straw has one hole.

Strictly and topologically defined, there is only one hole that goes through the length of the straw.

Think of a CD. A CD only has one hole. Now, make it radially thinner. Stretch it out. Now all of a sudden, you have a straw. Does it still have one hole, or does it have two now? If it has two, at what point does it start having two? What would be a meaningful, rigorous definition to be able to say that the straw has two holes while the CD does not? Does the CD have two holes? What meaningful proof backs that up? We already have a topological definition of a hole. Everything points towards the CD and straw having one hole. Hell, a mug and donut, the cover art of topology, have the same topology as (edit: are homeomorphic to) the CD and straw. And they both have one hole, so by extension, they must all have only one hole.

[associativeglassdesert]

inside you there are two disjoint closed sets one is contained in an open set the other is contained in another, disjoint open set YOU ARE NORMAL

[hama-industries]

What is he trying to prove

[more-mathematics-mor-lam]

Renting a flat in the tubular neighborhood