(Encyclopedia) pound, abbr. lb, unit of either mass or force in the customary system of English units of measurement. Two different pounds of mass are defined, one in the avoirdupois system of units…
(Encyclopedia) Bounty, British naval vessel, a 220-ton (200-metric-ton), 85-ft (26-m) cutter, commanded by William Bligh. She set sail for the Pacific in Dec., 1787, to transport breadfruit trees…
(Encyclopedia) Atlas, in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XV (or S15), Atlas is a small, irregularly shaped (nonspherical) body measuring…
(Encyclopedia) Sakmann, Bert, 1942–, German biophysicist, M.D. Univ. of Göttingen, Germany, 1974. He has been a researcher at the Max Planck Institute for Biophysical Chemistry in Göttingen since…
(Encyclopedia) EratosthenesEratosthenesĕrətŏsˈthənēz [key], c.275–c.195 b.c., Greek scholar, b. Cyrene. A pupil of Callimachus in Athens, he became (c.240 b.c.) head of the library at Alexandria.…
Upper-Air ObservationsWeatherMeasuring the AtmosphereThe Take on TemperatureIs the Pressure Getting to You?The Wind in the WillowsIt's Not the Heat, It's the HumidityMeasuring the RainPlacing the…
Earth ScienceAdvanced-Level Science ProjectsEarth ScienceHow Much Oxygen Is in the Air?Which Is More Acidic, Snow or Rain? How Can Different Polymers Be Identified? It seems at times that we…
(Encyclopedia) Siding Spring Observatory, astronomical observatory located on Siding Spring Mountain, near Coonabarabran, at an altitude of nearly 4,000 ft (1,220 m) in the Warrumbungle Mts. of New…
(Encyclopedia) Cherokee Strip or Cherokee Outlet, a narrow piece of land in N Oklahoma. Bounded on the north by the Kansas border, it has an area of more than 6 million acres (2.4 million hectares).…
