(Encyclopedia) Lemonnier, Pierre CharlesLemonnier, Pierre Charlespyĕr shärl ləmônyāˈ [key], 1715–99, French astronomer. For many years he was professor of physics at the Collège de France. He studied…
(Encyclopedia) Lalande, Joseph Jérôme Lefrançais deLalande, Joseph Jérôme Lefrançais dezhôzĕfˈ zhārōmˈ ləfräNsāˈ də [key]Lalande, Joseph Jérôme Lefrançais de läläNdˈ [key], 1732–1807, French…
(Encyclopedia) Hercules cluster, giant globular star cluster in the northern constellation Hercules; cataloged as M13 or NGC 6205. The cluster is just visible to the naked eye and is the best example…
(Encyclopedia) Harris, Julie, 1925–2013, American actress, b. Grosse Point, Mich. Harris made her New York debut in It's a Gift (1945). Her versatility and power won her enormous critical acclaim,…
(Encyclopedia) Burnett, CarolBurnett, Carolbərnĕtˈ [key], 1936–, American television performer, b. San Antonio, Tex. Beginning her show-business life as a singer, she soon turned to comedy. After…
astronautBorn: 4/3/1926Birthplace: Mitchell, Ind. Grissom was raised in Mitchell, Ind., the oldest of four children. Following high school, he served in the Army Air Corps from 1944 to 1945. With…
(Encyclopedia)
CE5
Image formation by curved mirrors and lenses
reflection, return of a wave from a surface that it strikes into the medium through which it has traveled. The general principles…
