Yes. Noether theorem is truly a beautiful piece of insight. I also remember fondly spontaneous symmetry breaking [0] as the key mechanism behind phase transitio

Yes. Noether theorem is truly a beautiful piece of insight. I also remember fondly spontaneous symmetry breaking [0] as the key mechanism behind phase transitions. [0] http://en.wikipedia.org/wiki/Spontaneous_symmetry_breaking http://en.wikipedia.org/wiki/Spontaneous_symmetry_breaking