Algodoo

Many different blocks that make a rainbow line, and more than 150 lasers that are all the different colors of the blocks, in one beam aimed at a prism. Since there are more than 150 lasers, the prism breaks them up into much richer colors.

Instead of breaking up one white laser into 8 colors, it breaks up around 150 lasers into a 150 laser rainbow, which is really neat with anti-aliasing. Sometimes you'll get red, orange, yellow and green together, and it looks really neat when that happens (When it's paused).

I suggest waiting untill the prism makes a full revolution untill you say whether this scene is good or bad, because you get different color combinations that way.

All you've got to do is download and press play to see all of the cool rainbow things.

WARNING: If your computer doesn't lag ALLOT with this scene running, I'm Abraham Lincoln riding a dicycle with an ice cream cone. That should be warning enough for you.