Platonic solids

Last night, just as I was about to hop into bed, I was forced to endure a lesson on platonic solids. And no, unfortunately platonic solids have nothing to do with sex or lack of. They’re far less exciting. This is one of the side-effects of being married to a mathematician: I get lessons. He’s even got a whiteboard now!

My father is also an academic and when I was growing he used to give my sister and me lessons on his blackboard. One time we got a lesson about how babies are made, complete with pictures he had drawn. It was all a bit scientific.

But I digress. I really want to pass on my new-found knowledge of platonic solids because they are supposed to be mathematically beautiful and there are only five of them in the whole wide world: tetrahedron, cube, octahedron, dodecahedron, icosahedron.

Platonic solids are regular polyhedra and they must satisfy this formula (known as Euler’s formula):

V – E + F = 2
Vertices – Edges + Faces = 2

We can test it out with a tetrahedron (which is really a triangle in 3D):

tetrahedron

The vertices are the corners of the tetrahedron -> 4
The edges are all the lines in the diagram -> 6
The faces are the triangles themselves -> 4

And ta da ….

4 – 6 + 4 = 2

Today I discovered that the smartest teams are the teams with more women on them. One of the reasons for this is because women tend to perform better on what is called the Reading the Mind in the Eyes test. I took the test and got 30. I work in the tech industry and although I hear this industry is rife with sexism, I have never experienced it myself. I work for a company which is very inclusive, diverse, and my team is incredibly supportive. My team lead also happens to be a woman. Being a woman in the IT industry is pretty good.