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24/12/1818 Discoverer of the conservation of energy is born

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Discovery Of Energy ~ James Prescott Joule & William Thomson

5:10

James Joule

English physicist James Joule discovered the law of the conservation of energy, probably most important natural law ever. His motivation was practical. He studied heat to help engineers build better steam engines. Unit of energy is called after him. Joule was a brewery manager. Science was the only hobby for him.
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    • Essentials 

    • Personal 

    • Early years 

    • The mechanical equivalent of heat 

    • Reception and priority 

    • Kinetic theory 

    • Honours