| How stuff works is a free collection of articles explaining how different things in real life work. For example, there are articles on how MP3 works, how helicopters work, how horses work, how cruise missiles work, how your teeth work and lots of other stuff. It is all well-explained and illustrated (no pr0n, though). The author is a guy who calls himself "Marshall Brain". That seems to be his real name, actually. He also tells juveniles not to have sex, which is dangerous. But other than that, he's a nice guy.
HSW is at <www.howstuffworks.com>. Duh.
Cf.: How Things Work: <http://rabi.phys.virginia.edu/HTW/> | 
