Planck:Max Karl Ernst Ludwig Planck; 1858; The Planck–Einstein relation; Germany Dirac:Paul Adrien Maurice Dirac; 1902; Dirac equation; UK Bohr:Niels Henrik David Bohr; 1885; Bohr model; Denmark Faraday:Michael Faraday; 1791; Electromagnetic induction; UK Lorentz:Hendrik Antoon Lorentz; 1853; Lorentz force; Netherlands Feynman:Richard Phillips Feynman; 1988; Feynman diagrams, Feynman rules; US Einstein:Albert Einstein; 1879; Photoelectric Effect, Mass–energy equivalence, Special relativity, General relativity; US Heisenberg:Werner Heisenberg; 1901; Uncertainty principle; Germany Schrödinger:Erwin Rudolf Josef Alexander Schrödinger; 1887; Schrödinger equation, Schrödinger's cat; Austria