I've got my A-to-Z for the year under way, with a bit of a career-biographical sketch if Michael Atiyah:
My second A-to-Z topic for the year was the Butterfly Effect. Of course I slipped some comic strips into it.
My third A-to-Z topic was Complex Numbers. I've written about them before, so tried to think a bit about a different angle: why do we trust them?
The fourth of my A-to-Z topics was Delta. It's a big idea so I tried to trim it to two specific but not quite identical uses of the concept.
Also I'm looking for topics to discuss for the letters G, H, and I yet.
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