1865 ⟶ Rudolf Clausius Defines Entropy
Rudolf Clausius: Definition of entropy.Year
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💡 Joule's Presentation on the Conservation of Energy
James Prescott Joule: Law of Conservation of energy (First law of thermodynamics), also 1847 – Helmholtz, Conservation of energy.⟶

PhysicsThermodynamicsEnergyScientific Revolution

🌡️ Rudolf Clausius Defines Entropy
⚛️ Boltzmann Defines Entropy Statistically
Ludwig Boltzmann: Statistical definition of entropy.⟶

PhysicsThermodynamicsScientific RevolutionEnergyTheoretical Physics

📡 Hertz Demonstrates Radio Waves, Validating Maxwell's Electromagnetic Theory
Heinrich Hertz publishes a conclusive proof of James Clerk Maxwell's electromagnetic theory in experiments that also demonstrate the existence of radio waves. The effects of electromagnetic waves had been observed by many people before this but no usable theory explaining them existed until Maxwell.⟶

PhysicsElectromagnetismScientific RevolutionCommunicationGlobal Impact

⚛️ Walther Nernst Formulates the Third Law of Thermodynamics

PhysicsThermodynamicsChemistryPhysical ChemistryGerman Science
