JOULE

Joule, named in honor of British physicist James P. Joule who proved in 1843 that a specific amount of work was converted into a specific amount of heat. A joule is now a unit for all forms of energy. One joule of work is done when the force of one NEWTON is exerted on an object moving in the direction of the force, a distance of one meter. It takes about one joule to lift an apple over your head. It is equivalent to one watt second.
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