Download this [1.7 MB] if you are running an older version of Windows and the following two programs crash when you run them.

	[Image Combiner - 1.2 MB] This program is for visually representing astronomical data. It takes 5 black-and-white images from different wavelengths and allows you to blend them into one RGB image. You can download source files from the internet via the program and use those.
	[Mastermind - 8 KB] This is a game where you play against the computer in the logic game Mastermind. It is played with 4 digit numbers. See the readme that comes with the program for more information. The computer is hard to beat, so watch out!
	The following programs require the Microsoft .NET Framework [24 MB] and the next two also require Managed DirectX 9 or greater.
	[Galaxy Explorer - 5.9 MB] This program allows you to interactively fly through the universe currently mapped in the Sloan Digital Sky Survey. A 3D Graphics card is recommended for this program.
	[Trajectory - 610 KB] A 3D program that simulates the trajectory of a ball traveling through the atmosphere. You can adjust all the variables to see how it affects the path, and it (might) even be educational! Also attached is the paper that I wrote, about integrating some of the equations that predict the path.
	[Mandelbrot Viewer - 7 KB] This program allows you to explore the Mandelbrot Set fractal as well as all of the related Julia Sets. It can be run interactively or as a screensaver (rename to .scr and put in windows\system32 directory).
	[Think Ahead - 6 KB] A simple board game played against a computer opponent, the goal is to gain more points. However, your move directly determines the opponent's possible moves, so play carefully.
	[Reaction Time - 150 KB] I had trouble finding any reasonable reaction time measuring programs (all of them had some kind of problem), so here's a reasonable one. It can average multiple trials, cue on movement or appearance, mouseup or mousedown. It also measures the display/mouse event loopback time (if you have an optical mouse).
	[FFTW.NET] A C#/.NET wrapper I wrote for the popular fourier transform library FFTW. Not very elaborate, but saves some trouble. That, and FFTW rocks.