The Lorenz equation is remarkable for it's
conciseness. I recall that
when I first learned about it (late 80's?) I was told that it was
originally intended to model some sort of atmospheric or gas flow
phenomena.
When I first heard of the Lorenz attractor, I read that Lorenz was trying to model
weather on a Royal-McBee computer (ontopic!), but due to processing constraints
was forced to drop everything but the wind (and perhaps temperature, but I'm not sure
there)
The Lorenz Attractor came out of these equations.
Came out of a popular article, so, remember, "The Guide is definitive, reality is
frequently inaccurate"