- Niels Bohr & Max Planck: Quantum mechanics 1925 - Stellar structure understood 1926 - Fermi-Dirac Statistics 1926 - Erwin Schrödinger: Schrödinger Equation 1927 - Werner Heisenberg: Uncertainty principle 1927 - Georges Lemaître: Big Bang 1927 - Paul Dirac: Dirac equation 1927 - Max Born interpretation of the Schrödinger equation 1928 - Paul Dirac proposes the antiparticle 1929 - Edwin Hubble: Expansion of the universe confirmed 1932 - Carl David Anderson: Antimatter discovered 1932 - James Chadwick: Neutron discovered 1933 - Ernst Ruska: Invention of the electron microscope 1935 - Subrahmanyan Chandrasekhar: Chandrasekhar limit for black hole collapse 1937 - Muon discovered by Carl David Anderson and Seth Neddermeyer 1938 - Pyotr Kapitsa: Superfluidity discovered 1938 - Otto Hahn, Lise Meitner and Fritz Strassmann Nuclear fission discovered 1938-39 - Stellar fusion explains energy production in stars 1939 - Uranium fission discovered 1941 - Feynman path integral 1944 - Theory of magnetism in 2D: Ising model 1947 - C.F. Powell, Giuseppe Occhialini, César Lattes: Pion discovered 1948 - Richard Feynman, Shinichiro Tomonaga, Julian Schwinger, Freeman Dyson: Quantum electrodynamics 1948 - Invention of the maser and laser by Charles Townes 1948 - Feynman diagrams 1956 - Electron neutrino discovered 1956-57 - Parity violation proved by Dr. Chien-Shiung Wu 1957 - BCS theory explaining superconductivity 1959-60 - Role of topology in quantum physics predicted and confirmed 1962 - SU(3) theory of strong interactions 1962 - Muon neutrino discovered 1963 - Chien-Shiung Wu confirms the conserved vector current theory for weak interactions 1963 - Murray Gell-Mann and George Zweig: Quarks predicted 1964 - Bell's Theorem initiates quantitative study of quantum entanglement 1967 - Unification of weak interaction and electromagnetism (electroweak theory) 1967 - Solar neutrino problem found 1967 - Pulsars (rotating neutron stars) discovered 1968 - Experimental evidence for quarks found 1968 - Vera Rubin: Dark matter theories 1970-73 - Standard Model of elementary particles invented 1971 - Helium 3 superfluidity 1971-75 - Michael Fisher, Kenneth G. Wilson, and Leo Kadanoff: Renormalization group 1972 - Black Hole Entropy 1974 - Black hole radiation (Hawking radiation) predicted 1974 - Charmed quark discovered 1975 - Tau lepton found 1977 - Bottom quark found 1977 - Anderson localization recognised (Nobel prize in 1977, Philip W. Anderson, Mott, Van Fleck) 1980 - Strangeness as a signature of quark-gluon plasma predicted 1980 - Richard Feynman proposes quantum computing 1980 - Quantum Hall effect 1981 - Alan Guth Theory of