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Ghez, Andrea Mia

(Encyclopedia)Ghez, Andrea Mia, 1965–, American astrophysicist, b. New York City, Ph.D. California Institute of Technology, 1992. She has been on the faculty at the Univ. of California, Los Angeles, since 1994. G...

isopropanol

(Encyclopedia)isopropanol, isopropyl alcohol, or 2-propanol īˌsəprōˈpənōl, īˌsəprōˈpĭl [key], (CH3)2CHOH, a colorless liquid that is miscible with water. It melts at −89℃ and boils at 82.3℃. It ...

Jovian planets

(Encyclopedia)Jovian planets, the planets Jupiter, Saturn, Uranus, and Neptune. They are all larger and more massive than the earth. Since they rotate faster, they are more flattened at the poles than are the terre...

Davy, Sir Humphry

(Encyclopedia)Davy, Sir Humphry, 1778–1829, English chemist and physicist. The son of a woodcarver, he received his early education at Truro and was apprenticed (1795) to a surgeon-apothecary at Penzance. While d...

chloroform

(Encyclopedia)chloroform trīˌklôrōmĕthˈān [key], CHCl3, volatile, colorless, nonflammable liquid that has a sweetish taste and a somewhat pungent odor; it boils at 61.7℃. It dissolves freely in ethanol and...

Coanda effect

(Encyclopedia)Coanda effect or wall-attachment effect, the tendency of a moving fluid, either liquid or gas, to attach itself to a surface and flow along it. As a fluid moves across a surface a certain amount of fr...

embolus

(Encyclopedia)embolus ĕmˈbələs [key], foreign matter circulating in and obstructing a blood vessel. It may be a portion of a clot that has separated from the wall of a vessel (see thrombosis), a bubble of gas o...

Saratov

(Encyclopedia)Saratov səräˈtəf [key], city (1991 est. pop. 910,000), capital of Saratov region, E European Russia, on the Volga River. It is a major industrial, transportation, and cultural center of the lower ...

Nuuk

(Encyclopedia)Nuuk gôtˈhôp [key], town (1996 pop. 12,882), Nuuk dist., W Greenland, on the Godthåbfjord. The largest town and capital of Greenland, it is the seat of the national council and of the supreme cour...

Permian Basin

(Encyclopedia)Permian Basin or West Texas Basin, extensive sedimentary basin, West Texas and SE New Mexico. Covering an area of more than 75,000 sq mi (194,000 sq km), its main components are the Midland Basin on t...