Quote:
Originally posted by redlemon
Scientifically, there will always be one "bald spot" in your hair. If you care, you can probably find the proof online somewhere. The same proof can be used to show that at some point on the earth, the windspeed is zero.
|
The proof doesn't work as well if your hair isn't lieing flat. =)
Ah, here is a varient on it: the
hairy ball theorem!
The actual theorem he is talking about is the
Brouwer fixed point theorem for the
disk. (disk-only version is easier).
Edit: Fixed a formatting mistake.