Curly hair and thermodynamics

Curly hair is cool. You stretch and straighten one  in your hands, let it go, and it springs back into curly messiness. 

This always reminds me of the behaviour of an ENTROPIC SPRING. When you stretch an entropic spring, rubber molecules for example, you have to do work to stretch it. When stretched there are fewer ways to arrange the molecule than in its tangled state, thus you have decreased its entropy. The molecule wants to spring back into its messy/random state to increase its entropy (disorder) and lower its free energy.

Curly hair and entropy, curly hair and entropy...