Beer and Relaxation

Around 1970 I was an auxiliary teacher at my old High School, earning some money needed to see me through my study of physics.
Just before christmas, I always conducted a lot of "fun" experiments, including an experiment the students did (I provided the material): Measure the decay of the froth on top of a mug of beer.
Everbody always got the exponential decay law, learned a bit about relaxation phenomena, and just had plain old fun.
Little did I know then that this could have gotten me the (Ig)-Nobelprize!
Arnd Leike of the University of Munich, won the 2002 physics Ig Nobel prize for demonstrating that beer froth obeys the mathematical Law of Exponential Decay. [REFERENCE: "Demonstration of the Exponential Decay Law Using Beer Froth," Arnd Leike, European Journal of Physics, vol. 23, January 2002, pp. 21-26.] INTERDISCIPLINARY
Here is a link to this groundbreaking paper, showing that relaxation with beer may have more meanings than you would have imagined.

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go to 3.3.2 Dipole Relaxation

© H. Föll (Electronic Materials - Script)