Chemists have changed the way that science looks at the world. By breaking substances down to the atomic level, chemists have greatly expanded our knowledge of the world. Click here to find articles about the greatest chemists in history.
Gay-Lussac, Joseph Louis (1778-1850), a French chemist and physicist. The formulation of Gay-Lussac's Law (1808) was an important step toward the discovery of fundamental properties of gases. See more »
Julian, Percy Lavon (1899â€“1975), a United States chemist. His research during the 1940's made possible the quantity production of testosterone and progesterone (the male and female hormones) and cortisone from soybeans. See more »
Harkins, William Draper (1873â€“1951), a United States physical chemist. In 1915 he suggested the theory of thermonuclear fusionâ€”that great amounts of energy are liberated by the fusion of four hydrogen atoms to form a helium atom. See more »