資料來源 : pyDict

焦耳

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Joule \Joule\ (j[=oo]l), n. [From the distinguished English
   physicist, James P. Joule.] (Physics.)
   A unit of work which is equal to 10^{7} units of work in the
   C. G. S. system of units (ergs), and is practically
   equivalent to the energy expended in one second by an
   electric current of one ampere in a resistance of one ohm.
   One joule is approximately equal to 0.738 foot pounds.

   {Joule's equivalent}. See under {Equivalent}, n.

資料來源 : WordNet®

joule
     n 1: a unit of electrical energy equal to the work done when a
          current of one ampere passes through a resistance of one
          ohm for one second [syn: {J}, {watt second}]
     2: English physicist who established the mechanical theory of
        heat and discovered the first law of thermodynamics
        (1818-1889) [syn: {James Prescott Joule}]