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Charles Coulomb began his career as a military engineer. After nine years in the West Indies, his health began to fail and he retired to research. Coulomb worked on many different subjects, including mechanics, arches, and structural analysis, but his work was on electricity and magnetism. Coulomb discovered that the electric force is equal to a constant, k, times the product of the charges and divided by the distance between he charges squared. He verified this experimentally and found k to be nine million N*m2/C2. He had a unit of electric charge, the coulomb (C), named after him. |