JAMES PRESCOTT JOULE

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JAMES PRESCOTT JOULE

• a brief biographical sketch by
• Carl J. Wenning

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James Prescott Joule

• English physicist
• Born Salford, Lancashire, England, December 24,
  1818
• Died Sale, Cheshire, October 11, 1889

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Most notable accomplishments

• First to accurately establish mechanical
  equivalent of heat 1 cal 4.184 J (4.15)
• Worked out resistive heating QI2Rt (at 22)
• Showed that heat is caused by motion

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Other accomplishments

• Measured heat associated with every conceivable
  process.