video thumbnail 14:22
Funny Fractions and Ford Circles - Numberphile

2015-06-09

[public] 439K views, 11.8K likes, 121 dislikes audio only

Farey Sequences, Ford Circles and a strange addition sign...

Featuring Francis Bonahon from the University of Southern California.

More links & stuff in full description below ↓↓↓

Watch EPIC CIRCLES: /youtube/video/sG_6nlMZ8f4

Periodic Videos chemistry: https://www.youtube.com/periodicvideos

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reduce them to a common denominator
/youtube/video/0hlvhQZIOQw?t=123.49
list all possible fractions
/youtube/video/0hlvhQZIOQw?t=242.799
add up the two numbers at the top
/youtube/video/0hlvhQZIOQw?t=388.23001
pick a fairy song in this piece of paper
/youtube/video/0hlvhQZIOQw?t=506.45999
draw the circle of radius 1 over 1 square
/youtube/video/0hlvhQZIOQw?t=652.82898
get circle of radius 1 / 4
/youtube/video/0hlvhQZIOQw?t=697.20001