31.2 Contemporary Physics: classical and modern 3. Thermodynamics Engine efficiency (Sadi Carnot)dissipation of mechanical energy and heat transfer (James Prescott Joule)entropy (rudolf Clausius)the statistical meanings of entropy ( ludwig Boltzmann) Willard Gibbs) The physical laws of thermodynamics 31.2 Contemporary Physics: classical and modern 4. Modern Physics relativity developed by albert einstein in 1905 is a more general theory of space, time, and motion Quantum mechanics is the theory developed during the1920s by such giants of 20th-centur hysics as Erwin Schrodinger, wolfgang Pauli, Werner Heisenberg, P.A. M.Dirac, Niels Bohr, and Enrico fermi, all of whom eventually became Nobel laureates in physics5 §1.2 Contemporary Physics: classical and modern 3. Thermodynamics Engine efficiency(Sadi Carnot)—dissipation of mechanical energy and heat transfer(James Prescott Joule)—entropy(Rudolf Clausius)—the statistical meanings of entropy(Ludwig Boltzmann) The physical laws of thermodynamics (Willard Gibbs) §1.2 Contemporary Physics: classical and modern 4. Modern Physics relativity developed by Albert Einstein in 1905 is a more general theory of space, time, and motion. Quantum mechanics is the theory developed during the1920s by such giants of 20th-century physics as Erwin Schrodinger, Wolfgang Pauli, Werner Heisenberg, P.A.M.Dirac, Niels Bohr, and Enrico Fermi, all of whom eventually became Nobel laureates in physics