(Encyclopedia) actiniumactiniumăktĭnˈēəm [key] [Gr.,=like a ray], radioactive chemical element; symbol Ac; at. no. 89; mass number of most stable isotope 227; m.p. about 1,050℃; b.p. 3,200℃±300℃; sp…
(Encyclopedia) piezoelectric effectpiezoelectric effectpīēˌzōĭlĕkˈtrĭk [key], voltage produced between surfaces of a solid dielectric (nonconducting substance) when a mechanical stress is applied to…
(Encyclopedia) Iberville, Pierre le Moyne, sieur d'Iberville, Pierre le Moyne, sieur d'pyĕr lə mwän syör dēbĕrvēlˈ [key], 1661–1706, French Canadian naval officer, founder of the French territory of…
(Encyclopedia) Vérendrye, Pierre Gaultier de Varennes, sieur de laVérendrye, Pierre Gaultier de Varennes, sieur de lapyĕr gōtyāˈ də värĕnˈ syör də lä vāräNdrēˈ [key], 1685–1749, explorer in W Canada…
(Encyclopedia) radiumradiumrāˈdēəm [key] [Lat. radius=ray], radioactive metallic chemical element; symbol Ra; at. no. 88; mass number of most stable isotope 226; m.p. 700℃; b.p. 1,140℃; sp. gr. about…
by Liz Olson The Nobel Prize for Science has been awarded since 1901 to people who have made outstanding achievements in physics, chemistry, physiology, or medicine. Marie Curie was the…
(Encyclopedia) Du Pont de Nemours, Pierre SamuelDu Pont de Nemours, Pierre Samuelpyĕr sämüĕlˈ dü pôN də nəm&oomacr;rˈ [key], 1739–1817, French economist, one of the physiocrats. Early in his…
(Encyclopedia) Argenson, Marc Pierre de Voyer de Paulmy, comte d'Argenson, Marc Pierre de Voyer de Paulmy, comte d'märk pyĕr də vwäyāˈ də pōmēˈ kôNt därzhäNsôNˈ [key], 1696–1764, French statesman and…
(Encyclopedia) Charpentier, Emmanuelle MarieCharpentier, Emmanuelle Marieāmänüĕl märēˈ shärpäNtyāˈ [key], 1968–, French microbiologist, Ph.D. Pierre and Marie Curie Univ., 1995. Following…
Ten Women Nobel Prize Winners in Science Women's History Month Nobel Peace Prize Winners Pulitzer Prize Winners in Literature Pulitzer Prize Winners in Journalism Women Rulers of the…
