Numberphile

Hello there.

This is Numberphile. We mainly post videos about mathematics and just numbers in general.

Balls and Cones

Jul 23

Jul 23 Balls and Cones

Tadashi Tokieda, Spheres

Earthquakes and Spheres

Jul 23

Jul 23 Earthquakes and Spheres

Tadashi Tokieda, Spheres

Jul 10

Jul 10 21-card trick

Anastasia Chavez, Cards

The Cross Ratio

Jul 6

Jul 6 The Cross Ratio

Federico Ardila, Sport

Klein Bottle Jeans

Jul 4

Jul 4 Klein Bottle Jeans

Cliff Stoll, Klein Bottles

The Six Triperfect Numbers

Jun 29

Jun 29 The Six Triperfect Numbers

James Grime, Prime Numbers, Perfect Numbers

Floating Balls and Lift

Jun 21

Jun 21 Floating Balls and Lift

Tadashi Tokieda, Physics

The Slightly Spooky Recamán Sequence

Jun 14

Jun 14 The Slightly Spooky Recamán Sequence

Alex Bellos, Coloring, Sequences

May 25

May 25 Weber's Law

May 20

May 20 g-conjecture

The Problem with 7825

May 17

May 17 The Problem with 7825

The Silver Ratio

May 10

May 10 The Silver Ratio

Tony Padilla, Golden Ratio

The Golden Ratio (why it is so irrational)

May 8

May 8 The Golden Ratio (why it is so irrational)

Ben Sparks, Golden Ratio

The Coin Hexagon

May 2

May 2 The Coin Hexagon

Alex Bellos, Coins

The Pentomino Puzzle (and Tetris)

May 2

May 2 The Pentomino Puzzle (and Tetris)

The Math (and money) of Soccer Stickers

Apr 26

Apr 26 The Math (and money) of Soccer Stickers

Federico Ardila, Sport

Is the "hot hand" real?

Apr 19

Apr 19 Is the "hot hand" real?

Lisa Goldberg, Sport

Neon Knots and Borromean Beer Rings

Apr 8

Apr 8 Neon Knots and Borromean Beer Rings

Cliff Stoll, Glass, Knots