The Amazing Heptadecagon (17-gon) - Numberphile

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Professor David Eisenbud - director of MSRI - on the amazing 17-gon and its link to Gauss.
See end of this video for a bit MSRI's address at 17 Gauss Way!

NUMBERPHILE

Videos by Brady Haran

[infinity]

- [Prof. Eisenbud] "Oh, it looks like I made a 21 polygon by accident"
- [Bob Ross] "There are no mistakes, only happy little accidents"

[EvanG]

"I might make some mistakes"

_Eyeballs a bisector_

[lumburgapalooza]

at first I was like "how did it take 2, 000 years to work this out?"
then I saw the steps required and was like "oh..."

[imveryangryitsnotbutter]

"Now we draw ourselves a happy little 17-gon..."

[londonalicante]

2 and 17 are coprime. So once you have 2/17 marked you don't have to bisect it, just use your compass to count the 2/17 sized spaces round the circle and after going round twice you should get back where you started with 17 points marked.

[NicosMind]

I like this guy's voice. Its so relaxing. If he ever did an audio book I would sleep every time no matter the subject.

[MBogdos]

Man, Gauss was unbelievable. Out of this world. I've never heard of any other scientist with that many contributions in that many different fields.

[Taraalcar]

A real Parker's Square of a heptadecagon

[scottmanley]

I'd be afraid to go near a place with the address 17 Gauss in case all my credit cards got wiped.

[Dorgpoop]

This guy could be telling me that a plane is about to crash on my house and I'd still be relaxed.

[peterjensen]

I find it fascinating that when David says (while drawing the Hexagon) "if I make the lines a little longer, its even nicer", I can see that if you DID make them longer, you'd get a triangle. That relationship of the circle, the hexagon and then the larger triangle is amazing to me.

[Harlequin]

I collect things like compasses and I always assumed those types of ends were meant to pinch and hold on to a bit of pencil graphite or something. I never imagined you could simply dip them, empty, into ink like that. Spectacular!

[DouglasZwick]

Maybe it's just the wine, but the story at the end there about choosing to be 17 Gauss Way instead of 1 Gauss Way made me tear up. Excellent video!

[asi.izzygizmic]

In the next video i want to see a heptadecaflexagon lol

[beelzzebub]

That story about 17 Gauss way and the drawing of the construction on the front door was awesome!

[jeaguilar]

Brown paper didn't work, eh? Love the old-school ink. (I can almost smell it!)

[yesandno]

You know, I really loved geometry in elementary school. I never was good at math, but I was always the best in solving geometry problems, because I loved to draw with my compass and ruler. I'm now sophomore in high school and haven't been into geometry lately. However, after watching how much you love to do this it brought a huge nostalgia to me. I think I'm going to draw some things right now, thank you.

[lawrencedoliveiro]

10:23 That’s OK, we salute you for trying ... a 21-gon salute.

Thank you, thank you, I’m here all week.

[IoEstasCedonta]

..."was Gauss a mathematician?"

[newspaperlightbulb]

These videos are just amazing. Where else could you see such an influential mathematician like David Eisenbud explaining a fun little geometry project?