James Prescott Joule – His Life and Work

James Prescott Joule was an English physicist, one of the most notable of his time, best known for his research in electricity, thermodynamics, and energy. He studied magnetism and discovered its relationship with mechanical work, which led him to the theory of energy. The international unit for energy, heat, and work, the Joule, was named in his honor. He worked with Lord Kelvin to develop the absolute temperature scale, made observations on the thermodynamic theory (Joule-Thomson effect), and postulated the now called Joule’s Law, which is a relationship between the electric current through a resistance and the heat.

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