Subcategories - Physics, Physicists
- Ernest Rutherford
- Erwin Schrödinger
- Esaki Demonstrates Electron Tunneling in Semiconductors
- Evangelista Torricelli
- Fabry Quantifies Ozone in the Upper Atmosphere
- Faraday Converts Magnetic Force into Electricity
- Fermi Creates the First Controlled Nuclear Fission Chain Reaction
- Fermi Proposes the Neutrino Theory of Beta Decay
- The First Atomic Bomb Is Successfully Detonated
- First Commercial Atomic-Powered Ship, Savannah, Is Launched
- The First Controlled Fission Reaction Occurs
- The First Laser Is Developed in the United States
- First Tidal Power Plant Begins Operation
- Fleming Files a Patent for the First Vacuum Tube
- Frédéric Joliot and Irène Joliot-Curie Develop the First Artificial Radioactive Element
- Gabor Develops the Basic Concept of Holography
- Galileo Confirms Heliocentric Model of the Solar System
- Gamow and Associates Develop the Big Bang Theory
- Gamow Explains Radioactive Alpha Decay
- Gamow Explains Radioactive Alpha-Decay with Quantum Tunneling
- Gaspard Monge
- Geiger and Rutherford Develop the Geiger Counter
- Gell-Mann Formulates the Theory of Quantum Chromodynamics (QCD)
- Georges Lemaître
- Georgi and Glashow Develop the First Grand Unified Theory
- Giacconi and Associates Discover the First Known X-Ray Source Outside the Solar System
- Glenn Theodore Seaborg
- Goddard Launches the First Liquid Fuel Propelled Rocket
- Guglielmo Marconi
- Gustav Hertz
- Hahn Splits an Atom of Uranium
- Hale Constructs the Largest Telescope of the Time
- Hans Albrecht Bethe
- Heeger and MacDiarmid Discover That Iodine-Doped Polyacetylene Conducts Electricity
- Heisenberg Articulates the Uncertainty Principle
- Hendrik Antoon Lorentz
- Henri Poincaré
- Hermann von Helmholtz
- Hess Discovers Cosmic Rays Through High-Altitude Ionizations
- Hideki Yukawa
- Hofstadter Discovers That Protons and Neutrons Each Have a Structure
- Hounsfield Introduces a CAT Scanner That Can See Clearly into the Body
- Hydrogen Bomb Is Detonated
- Igor Vasilyevich Kurchatov
- Isidor Isaac Rabi
- J. Robert Oppenheimer
- James Chadwick
- James Clerk Maxwell
- Jean Buridan
- Jean le Rond d’Alembert
