How to calculate the terminal velocity of a Balrog.
Eric’s Update: It turns out, this sequence begins two comics earlier. If you wish to know the origin of the line “Assume a spherical Balrog” check out the first and second comics (the third is even funnier after.).
Via Boing Boing

January 29, 2008 at 8:25 pm
Oh my. I knew that people got into the Lord of the Rings, but had no idea to what extent.
Forwarded the link on to an engineer/hard-core LOTR fan that I know. He will probably start trying to calculate it himself.
His wife is going to kill me.
Gila
January 29, 2008 at 9:08 pm
Excellent! Nerd-enabling is my favorite pasttime.