11. In statistical mechanics, a degree of freedom is a single microstate of a system. 12. The city-state and microstate is bordered exclusively by France and the Mediterranean Sea. 13. :: See microstate , the most famous of which is arguably the Hutt River Province. 14. Even when a system is entirely isolated from external influences, its microstate is constantly changing. 15. The microstate article doesn't really describe what I think you're asking about. 16. Cyprus placed second to last in its World Cup qualifying group, only finishing above microstate Andorra. 17. The microstate of such a system will be specified by a single point in the phase space. 18. But for a system with a huge number of degrees of freedom its exact microstate usually is not important. 19. In other words, a microstate in classical mechanics is a phase space region, and this region has volume. 20. Now, by microstate of an isolated system ( its information-theoretic joint entropy ) is constant in time.