1818 - 1889
Born in Salford,
England. A physicist, he shared in discovering the law of
the conservation of energy. Two German physicists, Hermann
von Helmholtz and Julius von Mayer, and Irish/Scottish physicist
Lord Kelvin, also worked on the law of physics. The law
states that energy used up in one form reappears in another
and is never lost.
In 1840, he stated a law, now called
Joule's Law, that heat is produced in an electrical
conductor. The International unit of energy, the joule, is
named in his honor.
Other Places to Visit...
James Joule Website (Michigan State University)
Answers.COM Web Page on Joule