1887 ⟶ Michelson-Morley Experiment Disproves Aether

Albert A. Michelson and Edward W. Morley: Michelson–Morley e...

Year

1876

1887

1957

1964

1974

⚛️ Josiah Willard Gibbs Formulates Chemical Thermodynamics and the Phase Rule

Josiah Willard Gibbs founded chemical thermodynamics, the phase rule.⟶

Josiah Willard Gibbs Formulates Chemical Thermodynamics and the Phase Rule (1876)

ThermodynamicsChemistryPhysical ChemistryScientific RevolutionGlobal ImpactPhysics

United States

🔬 Michelson-Morley Experiment Disproves Aether

Albert A. Michelson and Edward W. Morley: Michelson–Morley experiment which showed a lack of evidence for the aether.⟶

Michelson-Morley Experiment Disproves Aether (1887)

PhysicsRelativityGlobal ImpactScientific Revolution

United States

⚛️ Wu's Experiment Reveals Parity Violation in Weak Interactions

Chien Shiung Wu: demonstrated that parity, and thus charge conjugation and time-reversals, are violated for weak interactions⟶

Wu's Experiment Reveals Parity Violation in Weak Interactions (1957)

PhysicsParticle PhysicsExperimental PhysicsQuantum Mechanics20th Century Science

United States

⚛️ Gell-Mann and Zweig Propose Quarks

Murray Gell-Mann and George Zweig: postulates quarks, leading to the standard model⟶

Gell-Mann and Zweig Propose Quarks (1964)

PhysicsParticle PhysicsStandard ModelTheoretical Physics

United States

🔭 Discovery of Indirect Evidence for Gravitational Waves in a Binary Pulsar

Russell Alan Hulse and Joseph Hooton Taylor, Jr. discover indirect evidence for gravitational wave radiation in the Hulse–Taylor binary⟶

Discovery of Indirect Evidence for Gravitational Waves in a Binary Pulsar (1974)

PhysicsAstrophysicsRelativityGravitational WavesRadio Astronomy20th Century Science

United States