Third law of thermodynamics

Proposed that absolute zero is a theoretical limit that cannot be reached, only approached, just like the speed of light. This principle is sometimes called the third law of thermodynamics.
 Walther Hermann Nernst Germany 1906 Third law of thermodynamics

Proposed that absolute zero is a theoretical limit that cannot be reached, only approached, just like the speed of light. This principle is sometimes called the third law of thermodynamics.