Events & Influences in Joule's Life
- The result of his studies: Joule was fascinated by electricity. He and his brother experimented by giving electric shocks to each other and to the family's servants.
- Father's footsteps: Joule became a manager of the brewery until 1854. He started to investigate the feasibility of replacing the brewery's steam engines with the electric motor. He has already written his first scientific paper.
- Experimentation: He discovered Joule's law in 1840, although he didn't gain any notoriety with the Royal Society.
- Cambridge: In 1845, Joule read his paper On the Mechanical Equivalent of Heat to the British Association meeting in Cambridge. He explained one of his most famous experiments, involving the use of a falling weight to spin a paddle-wheel in an insulated barrel of water, and measuring the increase in temperature of the water.
- Teamwork: Joule collaborates with William Thomson and discovers the Joule-Thomson effect in 1852, showing that gas can expand at a constant internal energy.
This collaboration lasts four years.
- Bankruptcy: Joule funded most his research himself, and the funds finally ran out in 1875. He was granted a government pension shortly after, but he was often ill until his death in 1889 in Sale.