Sphaerica is the sole remaining book written by the mathematician Menelaus of Alexandria (c. 70-140 CE). It covers Spherical Geometry, a non-Euclidean geometry with particularly useful applications, given that the world we live on is in fact a sphere (or pretty darn close).
I chose it as the name for this blog for a number of reasons. Spherical geometry is cool. It’s complicated. It’s unexpected.
Books are cool. Teaching is cool. Geometry is cool. Sphaerica is cool.
It also takes intelligence and education to understand, and that’s the audience I want to reach, the intelligent and the educated. I can’t be bothered with the people that sat in high school, raised their hands, and said “why do I have to learn this? I’ll never need this.” It doesn’t mean they weren’t or aren’t smart. It just means they see their intelligence, and time spent learning, as a means to an end, i.e. making money.
Those people aren’t for me.
You need to know everything. You need to learn everything. That’s what makes you different from animals. That’s what makes you human. It’s not kindness, or compassion, or ruthlessness, or the ability to make tools or wage war on your own species for reasons other than personal survival.
What makes you human is your ability to learn and to understand more than you need to.