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The changing concept of 'Energy' over History

By efinny
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    Gottfried Willhelm Leibniz

  • Gottfried Wilhelm Leibniz

    Gottfried Wilhelm Leibniz
    Leibniz was a German mathematician and philosopher (July 1, 1646 – November 14, 1716) who invented a theory in which motion, kinetic and potential energy, is relative instead of absolute. He also invented Leibniz wheel which is used in a mechanical calculator (arithmometer). This was used till the electric calculator was invented in the late 19th century.
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    Joseph Black

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    Benjamin Thompson

  • Joseph Black

    Joseph Black
    Joseph Black was a French-Scottish physician and chemist (16 April 1728 – 6 December 1799). The things that he discovered and were known for were latent heat, specific heat, and carbon dioxide. Latent heat is when heat is abosrbed but it does not change temperature. Specific heat is the heat capacity per unit mass of a material. With his work, he influenced James Watt and Benjamin Rush. He believed heat was an invisible liquid.
  • Benjamin Thompson

    Benjamin Thompson
    Thompson was an American born British physicist and inventor (March 26, 1753 – August 21, 1814), his work was a part of the thermodynamics revolution in the 19th century.Thompson experimented with cannons and the heat that was generated from the friction of the motion of the cannon ball being fired from the cannon. He was an active inventor, inventing and improving on furnaces, chimneys, ect. He disproved Black's theory that heat was a liquid but instead something that could be made by motion
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    James Prescot Joule

  • James Prescot Joule

    James Prescot Joule
    Joule was an English physicist and brewer, born in Salford, Lancashire (24 December 1818 – 11 October 1889). He studied heat and discovered its relationship to energy. He discovered that heat flows from a hot object to a cool one and and he also discovered that heat is always lost.This led to the invention of the law of conservation of energy and then to the first law of thermodynamics. He invented the electric motor that then replaced steam engines.