Clausius

Clausius was a physicist who contributed to our understanding of thermodynamics, specifically heat flow. He formulated the Clausius statement of the second law, which states that heat cannot spontaneously transfer from a colder body to a warmer one without external work. Essentially, natural processes tend to move toward increasing disorder or entropy, and energy flows naturally from hot to cold. This principle helps explain why refrigerators require energy to keep things cool and why certain energy conversions are inherently inefficient. Clausius's work helps us understand and predict the behavior of energy and heat in physical systems.