Coulomb was born in Angoulême, France. He chose the profession of military engineer, and spent three years, to the decided injury of his health, at Fort Bourbon, Martinique. Upon his return, he was employed at La Rochelle, the Isle of Aix and Cherbourg. He discovered an inverse relationship on the force between charges and the square of its distance.

William Gilbert was born in Colchester, England, into a middle class family of some wealth. He entered St. John's College, Cambridge, in 1558 and obtained an B.A. in 1561, an M.A. in 1564, and finally an M.D. in 1569.