These are beautiful. It's a shame that the underlying drawing library is proprietary, though. Many animations are missing, and I'd love to contribute. Number 36 looks like it would have been fun.
Might be fun to animate one of the escapement gear images and include a pendulum. The tri-bevel-gear assemblies are useful for generating counter-rotating prop assemblies for propellers, drone blades in a gimbal, or ceiling fans by fixing a pair of middle gears to a hollow shaft and driving one of the other two. That's also an interesting mental exercise in topology since initially you're taught c cc c cc c when asked what is the direction of rotation for a particular gear in a series on a flat surface but here you must rotate the surface in mental space and analyze the results to determine direction from an outside perspective.
