For two centuries, students have learned that heat flows and engines work according to rigid limits that no machine can beat.

Almost exactly 200 years ago, French physicist Sadi Carnot determined the maximum efficiency of heat engines. The Carnot ...

Two physicists at the University of Stuttgart have proven that the Carnot principle, a central law of thermodynamics, does not apply to objects on the atomic scale whose physical properties are linked ...

Prof. SUN Qingping (left) and Research Assistant Prof. LI Qiao (right), both from the Department of Mechanical and Aerospace Engineering at HKUST, demonstrate their newly developed Ti₇₈Nb₂₂ elastic ...