The dataset of 50 physics terms was selected by hand from the [bigger dataset](dataset-of-1038-physic-terms.md) obtained by the [master-keyword-extraction](../../code/projects/master-keyword-extraction.md) project: ``` Antimatter Atom Black hole Boson Collider Color charge Convection Cosmic background radiation Casimir effect Classical mechanics Dark energy Density Diamagnetism Electromagnetism Entropy Fermi gas Ferromagnet Frequency Gauge symmetry Galaxy General relativity Gluon Gravitational wave Hadron Harmonic oscillator Ideal gas Kinetic energy Laser Mass Nuclear fusion Optics Particle accelerator Phonon Planet Quantum mechanics Radioactive decay Schrödinger equation Solar System Spectroscopy Superconductor Supernova Surface tension Synchrotron radiation Telescope Temperature Thermodynamics Ultraviolet radiation Vacuum Velocity Weak interaction ```