Adolf Eugen Fick - Definition and Overview

Adolf Eugen Fick (1829-1901) was a German physiologist and inventor. He is best known for his 1887 invention of the contact lens. In 1855 he introduced Fick's law of diffusion, which governs the diffusion of a gas across a fluid membrane. In 1870 he was the first to devise a technique for measuring cardiac output, called the Fick Principle.