Martin D. Kamen, 89, a Discoverer of Radioactive Carbon-14

By KENNETH CHANG
Published: September 5, 2002

Martin D. Kamen, one of the scientists who discovered radioactive carbon-14 and in doing so helped lay a foundation for deciphering the chemical processes in plants and animals, died on Aug. 31 at his home in Santa Barbara, Calif. He was 89. ...