How This Was Done
It all began with studying quaternions for many years...
Then I had a daughter. How could I explain my work to her?
Elle and I collaborated on the drawings. She drew two figures, and I did (the ones with the more youthful color palette are hers).
The web site was generated using mkdocs, a great program for sites with static content.
The page-cast were created with Camtasia2 for Mac.