Here are some Mathematica programs to make the pictures and movies on this site. This is just for fun.
Note: I'm a mathematician, not a computer programmer; these are done poorly, inefficiently, and poorly.
They get the job done (sometimes).
Right-click to download.

Feel free to play around and make your own pictures, and
if you end up using them, please acknowledge the source. All files (c) 2018.

A long long time ago (1998?), Sam Payne and I played around with Conway's audioactive decay sequence (mod 2).
We found that there were exactly two limiting fractal structures (other than concatenations of "boring old 1110")!
Here's a
program for making pictures of these fractals:

Silliness

What happens if I leave dishes in the sink for a week?

(Back by popular -- one person -- demand) In case you don't subscribe to Saxophone Journal:

Ah, the hard life of research mathematics:

At the DRIP Conference.
Floating in the Dead Sea with (l-r) Andrew Booker, Roger Heath-Brown, Tim Browning, Valentin Blomer, AK. Photo by Ulrich Derenthal.