Colouring Knots - Numberphile

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NUMBERPHILE

Video by Brady Haran and Pete McPartlan

[JPKocher]

The twisted telephone cable in the background suits the topic.

[TjinDeDjen]

Me: "Knots? Propably a topology video."
Prof: "Here is a little ant..."
Me: "Ah yes, definitely a topology video XD"

[The_Omegaman]

Never watched a guy talk so fast and understood him. Well done.

[vulpineboriqua]

“Ryduhmeistuh moves” is gonna live in my head rent-free lol

[mabynke]

This guy has some remarkable explaining skills. The first half of this video is an efficient and understandable introduction to knot theory.

[AmalgamatedTensor]

Sylvain is the man who taught me algebraic topology, morse theory, and simple homotopy theory. I'm so happy he's here, and also that Courant, one of the greatest math departments in the world, has proper representation on Numberphile!

[hojoman]

This might hold the record for greater number of words per minute in a numberphile video!

[gastongonzalez]

had him for 3 courses at NYU - he’s the best professor I’ve had, thank you Professor Cappell!!

[oisincoghlan]

Wow, his desk is almost as messy as mine.

[alevelphysics]

"Where are we going to put the brown paper?"
"Don't worry, I'll just sweep the papers to the side in one swift Brooklyn arm motion. Now pass me the Sharpie and let me talk without pause, breath or hesitation!"

[galqiwi]

Let's just acknowledge the great work on illustrations here. I am impressed by the quality.

[leadnitrate]

Geroge R R Martin teaches maths about knots. Interesting.

[Aceronian]

i could listen to this man say nothing but "reidemeister moves" for hours

[robsamsully]

Everytime this guy says "crossing" I feel something akin to the warmth of a mother's love

[givrally]

There's one problem with this proof : We haven't proved that there's only three Reidemeister moves. If there was a fourth one that didn't adhere to the 3-coloring rule, then there could be a way to make the unknot 3-colorable.

[antivanti]

"They say the person who has a disorganized desk has it the same way in their head. So what does it look like in the head of the person with nothing on their desk?"

[OllorbidaComment]

"But this wonderful knot is not a knot"

(the coco-knot song)

[bakmanthetitan]

Knot theory isn't about *why*, it's about *why knot*.

[mumiemonstret]

I'm pretty sure he knows exactly in his head how he could tidy up all the papers on his desk with a single isomorphic move, and that's why he doesn't feel the urge to do it.

[trin]

someone had fun drawing the cartoons of all those knots around @6:50