Sum Cubes with Triangles (visual proof without words V)

2:22
Self Similar Geometric Series: Sums of powers of 7 (and all integers larger than 3)

20:25
Un objeto de 1,58 dimensiones: Numberphile

20:58
A Dozen Proofs: Sum of Integers Formula (visual proofs) #SoME2

6:46
Beautiful Geometry behind Geometric Series (8 dissection visual proofs without words) #math #series

4:14
Three Geometric Series in an Equilateral Triangle (visual proof without words)

16:03
proof by just look at it!

23:39
¡El movimiento divino de Bobby Fischer hace que todo el mundo del ajedrez se derrumbe! | "El jueg...

20:19