sol y sombra

I was looking for triangular graph paper recently but couldn't find anything in the shops. In the end I decided to order online... But ...

Really. A soccer ball (or football if you're from Europe) is a spherical polyhedron or spherical truncated icosahedron . It is a shape ...

I've been procrastinating over how to start this blog for some time now. Then on Tuesday I attended a talk by María Pérez-Luque on Art a...