Charles-Augustin de Coulomb was a French physicist and engineer who established a theory known as Coulomb's Law and was praised for his work in torsion balances; he also did work on magnetism and electricity. His force theories explained electrical charges, magnetic repulsion and magnetic attraction. The coulomb, which is a unit of measurement, is named in de Coulomb's honor.
de Coulomb's study of wires under twisting stress led to his study of torsion balance; de Coulomb used this work to determine the Earth's density and to pioneer the use-measuring forces for magnetism and frictional electricity. He would write several papers on various magnetism and electricity aspects in the late 1700s. It was during this time that he developed his Coulomb's Law.
After the French Revolution, de Coulomb devoted most of his time to scientific research. He investigated pivotal friction, fluid viscosity and the ways that man is affected by climate and food.
de Coulomb had two children with Louise Francoise Leproust, although the pair never married until after the youngest son was around 5 years old. He took a fever in the summer of 1796 and never recovered. He died on August 23, 1806, in Paris, France.