Planing Sequences (Le Rabot) - Numberphile

Featuring Neil Sloane from the OEIS - and his carpenter's plane.
More links & stuff in full description below ↓↓↓

NUMBERPHILE

Video by Brady Haran and Pete McPartlan

[hzr]

'My study is very messy' 18 years to find a letter.

[clutchyfinger]

This man is clearly an immortal, 18 years is but a moments time for him.

[mytube]

I propose that the inverse rabot should be called "veneer". Applying a new layer instead of shaving one away.

[joshuamiller]

“Does every number appear? Yeah, sure.”

Best proof ever.

[MegaPhester]

It's so cool that the riff established at the beginning of the sequence always comes back on the beat, since that part of the sequence only comes back at multiples of 16. Makes it feel like a composition. The fact that the melody happens to sound phrygian-ish is hilarious as it makes it sound like thrash metal.

[Denema]

That Conway piano and the logo. Excellent tribute.

[PhngluiMglwnafh]

I love how delighted Neil Sloane gets over integer sequences. He didn't just create the OEIS, he is the OEIS

[recklessroges]

Who ever chose "Conway & Sons" for the piano name, , , thank you. (I'm not crying.)

[impendio]

I actually like how dramatic the sequence sounds, I’m a huge sucker for experimental stuff and breaking data sets into music is a very interesting prospect to me.

[KevinLarsson]

7:10 DJ Neil Sloane - Le Rabot (Mod88 Remix)

[idjles]

7:13 the piano‘s name and logo brought tears to my eyes.

[KurtSchwind]

Huge props for the game of life reference on the piano.

[Bronco]

For some reason everyone of these sequence videos feels like he is revealing a surprising secret of the universe. Its very exciting

[csababekesi-marton]

I always enjoy Mr. Sloane's lectures as nothing else. Cheerful, highly intelligent and interesting. His personality is ideal for being a professor.

[lachlanstewart]

If I go too long without these episodes...



I get sloanely :(

[ralfoide]

Mr. Sloane can magically transform a sequence of numbers into an amazing story. That was truly interesting.
_Il n'y a rien à raboter dans cette histoire ;-) ... Merci Mr. Sloane !_

[jimoubenremouga]

That man is so chill that i want him to be my math teacher

[razieldolomite]

The musical transposition was awesome. Never before have numbers sounded so menacing

[astromus]

"Conway and Sons" – What a wonderful tribute!

[MaximeJean]

Pretty sure that calling that expanding transformation "inverse Rabot" is incorrect. The rabot can delete runs, the expanding can not create new ones. Expanding 0 just gives you 00 which is 0, but there are plenty of ways to get to 0 with the rabot. Doing expanding then rabot gives you the starting number, but not the other way around, for instance expanding 1010 gives you 11001100 and rabot that you get 1010, but rabot 1010 gives you 0 and reexpanding that gives you 0.