Trying my hand at 6502 assembly, and putting the 500MHz 6502 through its paces, with (what else?) ray-tracing.

Building a cycle-accurate simulation of the MOS 6502 microprocessor using test-driven development against millions of real-world states. Gratification when it successfully runs real assembly code.

A system to simulate gears as they interact with one another, and with other bodies.

Simulating the paths of individual photons from emission to absorption, in order to accurately predict how glass will focus light; how surfaces will bounce-illumanate one another; and how hot my laptop's cpu can get.

Adding many enhancements to the ray-tracer, and upgrading its performance, making it possible to accurately predict the appearance of complex objects in simulated environments.

Our ray-tracing graphics engine is greatly improved with additional shapes, more accurate simulation, and a complete rewrite in C++ -- leading to a 300x improvement in performance, and the possibility of moving images.

Simulating the evolution of neural networks through natural selection by pitting thousands of predators and prey against one another -- and finally proving Charles right.

Simulating the paths that rays of light take as they are emitted, absorbed, reflected, and refracted, in order to predict the visual appearance of various arrangements of spheres unlikely to occur naturally in the real world.

Detecting interactions, calculating impulses, resolving collisions, and paying Newton's laws the respect they deserve.