Frink is a programming language by Alan Eliasen. It is really good at dealing with physical matters, tracking units along with numbers, so that physical calculations are really simple.
For example, how many gallons of gasoline have as much energy as a teaspoon of water (according to Einstein)? A line of Frink prints the answer:
teaspoon water c^2 -> "gallons gasoline"
3164209.862836101 gallons gasoline
The Sample Calculations are a hoot, ranging from frat-house liquor calculations to fart jokes to spam-debunking. And of course, the name of the language is from every geek's favorite Simpson's character. Frink will be the topic of one of the talks at the Lightweight Languages 2004 forum.