Strength 12:00 [1]
Core at home.
3rd law of thermodynamics day. Short statement: T=0K is the twilight zone. Entropy stops decreasing, which means that no system can ever (read: in finite time) be motivated to actually *get* to T=0K. So that's cool.
But there is debate, it seems about whether S -> 0 as T -> or if just S -> C where C is greater than or equal to zero. From a stat mech standpoint, it depends if the ground state is degenerate or not. Apparently it is in systems known as spin glasses, but I don't yet know much about them...