A couple of weeks ago, I put up a piece on Fall Factors. I included a Fall Factor calculator which was a bit screwy. A couple of people noticed that it wasn't working and had some additional questions about Fall Factors.
While thinking about this, I came across this video from a mathematics professor and climber at Emory University. It's a very nice piece that does a very good job in discussing the basics of Fall Factors.
--Jason D. Martin