img16 - Chalkdust

Splitting the octahedron into 12 hexahedra

Enric is a PhD student at Imperial and UCL. He works mostly with singularities in differential geometry, AKA when smooth things become pointy. When he’s not in his office, you can usually find him cooking or playing board games.

In conversation with Jens Marklof
Bethany Clarke and Enric Solé-Farré chat to the professor and new president of the London Mathematical Society about academia, access and awards
An odd card trick
Michael Wendl dissects some variants of the magic separation, a self-working card trick.
$Flo-maps fractograms: the game$
Flo-maps fractograms: the game
Try out these flo-maps for yourself: fractions speak louder than words
$Flo-maps fractograms: the prequel$
Flo-maps fractograms: the prequel
Hugh Duncan returns with the long-awaited prequel in which he further explores the geometric patterns hidden behind the fractions.
Seven things you didn’t notice in Issue 04
How many did you spot?
Top Ten vote: Colours of chalk
Vote for your favourite colour of chalk for Issue 04: is it white, yellow, or the Post Office Tower?