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Lefkowitz, Robert Joseph

(Encyclopedia)Lefkowitz, Robert Joseph, 1943–, American physician, b. New York City, M.D. Columbia, 1966. Since 1973 Lefkowitz has been a professor at Duke Univ.; he was appointed a Howard Hughes Medical Institut...

Kirchhoff, Gustav Robert

(Encyclopedia)Kirchhoff, Gustav Robert go͝osˈtäf rōˈbĕrt kĭrkhˈhôf [key], 1824–87, German physicist. He served as professor of physics at the universities of Breslau (1850–54), Heidelberg (1854–74), ...

Laughlin, Robert Betts

(Encyclopedia)Laughlin, Robert Betts, 1950–, American physicist, b. Visalia, Calif., Ph.D. Massachusetts Institute of Technology, 1979. Laughlin was a researcher at Lawrence Livermore National Laboratory from 198...

Kremer, Michael Robert

(Encyclopedia)Kremer, Michael Robert, 1964–, American economist, b. New York City, Ph.D. Harvard, 1992. After serving as a postdoctoral fellow (1992–93) at the Massachusetts Institute of Technology, he taught e...

Klein, Lawrence Robert

(Encyclopedia)Klein, Lawrence Robert, 1920–2013, American economist, b. Omaha, Nebr., Ph.D Massachusetts Institute of Technology, 1944. He was active in academia, government, and private research institutes throu...

Knolles, Sir Robert

(Encyclopedia)Knolles or Knollys, Sir Robert both: nōlz [key], d. 1407, English military commander in the Hundred Years War. He became a leader of a company of mercenaries, fought against Bertrand Du Guesclin, who...

Kocharian, Robert Sedraki

(Encyclopedia)Kocharian or Kocharyan, Robert Sedraki, 1954–, Armenian political leader. He served (1972–74) in the Soviet army and worked as a mechanical engineer (1977–81) before graduating (1982) from the Y...

Laird, Melvin Robert

(Encyclopedia)Laird, Melvin Robert, 1922–2016, American politician, U.S. secretary of defense (1969–73), b. Omaha, Nebr. After serving (1942–46) in the navy during World War II, he entered politics as a Repub...

Paine, Robert Treat

(Encyclopedia)Paine, Robert Treat, 1731–1814, political figure in the American Revolution, signer of the Declaration of Independence, b. Boston, Mass. He served briefly as a chaplain in the French and Indian War ...

Ripley, Robert LeRoy

(Encyclopedia)Ripley, Robert LeRoy, 1890–1949, American cartoonist, b. Santa Rosa, Calif., as Leroy Robert Ripley. The creator of the Believe It or Not! newspaper cartoon, Ripley began his career at 16 as a sport...