Related by context. Frequent words. (Click for all words.) 50 IUPAC 50 E = mc 49 QCD 47 ETH Zurich 46 COBE 46 JILA 46 Fourier 45 particle physicist 45 E = mc2 45 LCLS 44 positron 44 Garching Germany 44 polynomial 44 quantized 44 Leibniz 43 logarithmic 43 physicists 43 gas chromatograph 43 Nuclear Physics 43 googol 43 DESY 42 rubidium 42 Feynman 42 geoid 42 attosecond 42 interferometers 42 Niels Bohr Institute 41 LLNL 41 muon 41 nanomechanical 41 synchrotron radiation 41 pi 41 tokamak 41 frequency comb 41 Fibonacci sequence 41 Jülich 41 quadratic 41 COROT 41 Nuclear Magnetic Resonance 41 antiprotons 41 beamline 40 spectroscopic 40 particle detector 40 TRIUMF 40 theoretical calculations 40 GeV 40 LSST 40 particle physicists 40 photon 40 physicist 40 particle detectors 40 extrasolar planet 39 Paul Dirac 39 STScI 39 phi 39 Nicolaus Copernicus 39 astrophysicists 39 quantum physicist 39 theoretical physicists 39 theoretical physicist 39 Astrophysicist 39 Johannes Kepler 39 Physicist 39 Nanowerk 39 Einstein 39 LIGO 39 Fresnel 38 picosecond 38 elemental composition 38 Blaise Pascal 38 angstrom 38 magnetar 38 Linpack benchmark 38 Bardeen 38 femtosecond 38 quintillion 38 electron spins 38 Bose Einstein condensate 38 Cosmologists 38 National Astronomical Observatory 38 Southern Observatory ESO 38 Niels Bohr 38 mathematicians 38 cosmologists 38 Astrophysicists 38 DAMA 37 WASP #b 37 Cancri 37 integer 37 quanta 37 Ames Laboratory 37 subatomic particle 37 Richard Feynman 37 Gravity Probe B 37 Maskawa 37 physics 37 planet Uranus 37 mathematical equation 37 integers 37 trillionth 37 mathematical calculation