Related by context. Frequent words. (Click for all words.) 52 symmetries 50 general relativity 49 quantum mechanics 49 quantum theory 48 cosmological 48 singularities 48 thermodynamic 48 relativistic 47 quantum entanglement 47 gravitational wave 47 spacetime 46 subatomic 46 exciton 46 relativity 46 astrophysical 46 proportionality 46 cuprates 45 gravitational lensing 45 quantum gravity 45 numerical simulations 45 Newtonian physics 45 excitons 45 Hawking radiation 44 Wis. Stat 44 Earth magnetosphere 44 high temperature superconductivity 44 optical microscopy 44 magnetic flux 44 superfluidity 44 Einstein theory 44 thermodynamics 44 plasmonic 44 Higgs particle 44 theoretical calculations 43 fermions 43 Geneva conventions 43 symmetry 43 superposition 43 quantum mechanical 43 diffraction 43 interferometry 43 excitations 43 cosmic microwave background 43 quantized 43 Brownian motion 43 astronomical observations 42 atomic nuclei 42 unconscionability 42 photonic crystal 42 macroscopic 42 Type Ia supernovae 42 GPa 42 Confrontation Clause 42 electromagnetism 42 z = 42 topological 42 observable 42 particle physics 42 nanoscopic 42 spatial dimensions 42 superconducting materials 42 QCD 42 microwave radiation 42 anisotropy 41 Apprendi 41 Bose Einstein condensate 41 irreducible complexity 41 WIMPs 41 Gen. Stat 41 invariant 41 exclusionary rule 41 crystal lattice 41 unobservable 41 subatomic particle 41 amplitudes 41 bosons 41 phenomenology 41 theoretic 41 cosmic ray 41 quantum optics 41 superconductivity 41 shorter wavelengths 41 semiconducting 41 Notify us 40 physics 40 electron spin 40 supersymmetry 40 radioactive decay 40 galaxy clusters 40 positron 40 Newtonian 40 Eighth Amendment prohibition 40 magnetic reconnection 40 superfluid 40 nanotube 40 terahertz radiation 40 quotation omitted 40 nanometer scale 40 galaxy formation 40 parallax 40 phonons