Related by context. Frequent words. (Click for all words.) 63 physicist 61 Johannes Kepler 60 Paul Dirac 59 quantum theory 58 elementary particle physics 58 Szilard 57 Werner Heisenberg 57 Einstein theories 56 theoretical physicist 56 physicist Albert Einstein 56 Hawking radiation 55 Niels Bohr 55 physicists 55 Heisenberg 55 Nicolaus Copernicus 54 photoelectric effect 53 biophysicist 53 Richard Feynman 53 quantum optics 52 quantum mechanics 52 quantum physicist 52 Cosmologists 52 mathematician 52 Feynman 52 Rene Descartes 52 Maskawa 52 Bose Einstein condensate 52 theoretical physicists 51 Quantum Optics 51 Madame Curie 51 Paracelsus 51 Schrödinger 51 Einstein 51 Albert Einstein 51 particle physicist 51 von Neumann 51 boson 51 Nobelist 51 stimulated emission 51 interplanetary spacecraft 50 Charles Babbage 50 Physicist 50 quantum gravity 50 philologist 50 Brownian motion 50 cosmologist 50 Fraunhofer ISE 50 tokamak 50 Einstein theory 50 electromagnetism 50 Panofsky 50 E = mc2 50 singularities 50 cosmic microwave background 49 Edward Teller 49 interferometers 49 Wernher von Braun 49 Edwin Hubble 49 general relativity 49 quanta 49 electromagnetic induction 49 Niels Bohr Institute 49 Astrophysicist 49 Gregor Mendel 49 Martin Heidegger 49 cosmological 49 Fourier 49 decoherence 48 positron 48 Leibniz 48 thermodynamics 48 frequency comb 48 Theodore Herzl 48 E = mc 48 cosmologists 48 quantum physics 48 superfluidity 48 Nobel Physics 48 Heinrich Heine 48 Higgs particle 48 parapsychology 48 quantized 48 constructivism 48 physics 48 magnetron 48 Antonio Gramsci 47 Blaise Pascal 47 nuclear fission 47 astrophysical 47 scanning tunneling microscope 47 theorist 47 planet Uranus 47 subatomic particle 47 Quantum Physics 47 journal Applied Physics 47 Changizi 47 Baal Shem Tov 47 high temperature superconductivity 47 Bernoulli 47 Adaptive Optics 47 astrophysicist