17 Nov 2012
See the help page for how it worked on different browsers. The best bet is to get the latest Firefox. Then, free up system resources by 1) restarting Firefox to free up and reset it's memory usage, 2) running the link with no other tabs, and 3) closing as many other processes as you can. It will also help to have a fast machine with a lot of memory and a good video card.
In 1989, I saw an exhibit at the Exploratorium in San Francisco. It was a little CRT computer display running a program consisting of a blue circle (Earth) in the middle of the screen and a dot moving around the circle (a satellite). (Find it here.) There were two buttons to control it. One button added a burst of speed in the direction the dot was moving (sped it up). The other button added a burst of speed in the opposite direction (slowed it down). I was enthralled!
I was (and am) an aeronautical engineer. I had had classes where we learned how to calculate orbits and transfers and all that. I knew the stuff, right? I did. But, I hadn't lived it. After five minutes playing with that thing, I felt it in me! And, while I was flying the dot around, I had a weird sensation that I was actually flying in it in space. I'm not kidding. What a thrill!
This is my third re-creation of that exhibit. The first re-creation was in Borland C++ in 1994. Very crude, but satisfying for me at least -- I got the feeling back. Last year I re-did it in Python and added an Earth space elevator you could release from. It was pretty, but the interpreted graphics slowed it down and my method for controlling the program was to modify the script and run it again! The code was also very spaghettified too by the time I tacked on all the new features that I made up as I went along.