1. ~ a brief biographical sketch by ~ Carl J. Wenning
JAMES PRESCOTT JOULE
~ a brief biographical sketch by ~
Carl J. Wenning

2. James Prescott Joule English physicist
Born: Salford, Lancashire, England, December 24, 1818
Died: Sale, Cheshire, October 11, 1889

3. Most notable accomplishments
First to accurately establish mechanical equivalent of heat: cal = J (4.15)
Worked out resistive heating Q=I2Rt (at 22)
Showed that heat is caused by motion

4. Other accomplishments
Measured heat associated with every conceivable process.