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copernicium
(Encyclopedia) copernicium, artificially produced radioactive chemical element; symbol Cn; at. no. 112; mass number of most stable isotope 285; m.p., b.p., sp. gr., and valence unknown. Situated in…Franklin, Ann Smith
(Encyclopedia) Franklin, Ann Smith, 1696–1763, American printer; sister-in-law of Benjamin Franklin. After the death in 1735 of her husband, James Franklin, she carried on his commercial printing…blood pressure
(Encyclopedia) blood pressure, force exerted by the blood upon the walls of the arteries. The pressure in the arteries originates in the pumping action of the heart, and pressure waves can be felt at…MESSENGER to Enter Mercury's Orbit to Find Clues to the Mysteries of the Planet
Mercury mission coincides with journey of New Horizons as it crosses the orbit of Uranus by Catherine McNiff Related Links Space Shuttle TimelineSpace Shuttle (Encyclopedia) Space…McDonnell, James Smith
(Encyclopedia) McDonnell, James Smith, 1899–1980, American aviation pioneer, b. Denver, B.S. Princeton, 1921, M.S. Massachusetts Institute of Technology, 1925. He designed the Doodlebug (1929), a…Schiaparelli, Giovanni Virginio
(Encyclopedia) Schiaparelli, Giovanni VirginioSchiaparelli, Giovanni Virginiojōvänˈnē vērjēˈnyō [key]Schiaparelli, Giovanni Virginio skyäpärĕlˈlē [key], 1835–1910, Italian astronomer. He was director…Notker Labeo
(Encyclopedia) Notker LabeoNotker Labeonōtˈkər [key]Notker Labeoläˈbēō [key], c.950–1022, German monk, also known as Teŭtonĭcus. He was a teacher at St. Gall. Notker translated into Old High German…STP
(Encyclopedia) STP or standard temperature and pressure, standard conditions for measurement of the properties of matter. The standard temperature is the freezing point of pure water, 0℃ or 273.15K.…Alpha Centauri
(Encyclopedia) Alpha CentauriAlpha Centauriălˈfə sĕntôrˈē [key], brightest star in the constellation Centaurus and 3d-brightest star in the sky; also known as Rigil Kent or Rigil Kentaurus; 1992…satellite, natural
(Encyclopedia) satellite, natural, celestial body orbiting a planet, dwarf planet, asteroid, or star of a larger size. The most familiar natural satellite is the earth's moon; thus, satellites of…Trending
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