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prime meridian

(Encyclopedia)prime meridian, meridian that is designated zero degree (0°) longitude, from which all other longitudes are measured. By international convention, it passes through the site of the Royal Observatory ...

gamma-ray astronomy

(Encyclopedia)gamma-ray astronomy, study of astronomical objects by analysis of the most energetic electromagnetic radiation they emit. Gamma rays are shorter in wavelength and hence more energetic than X rays (see...

satellite, artificial

(Encyclopedia)CE5 A. Nimbus weather satellite B. Syncom communications satellite satellite, artificial, object constructed by humans and placed in orbit around the earth or other celestial body (see also space ...

Carnatic

(Encyclopedia)Carnatic kärnăˈtĭk [key], historic region in SE India, comprising roughly the area between the S Coromandel Coast of the Bay of Bengal and the Deccan Plateau. The region comprised the domains of t...

Stark, Freya Madeline

(Encyclopedia)Stark, Freya Madeline frāˈə [key], 1893–1993, British author, traveler, and Arabist. The first European to visit several areas in the Middle East, she was born in Paris to artist parents and grew...

Vesuvius

(Encyclopedia)Vesuvius vəso͞oˈvēəs [key], Ital. Vesuvio, active volcano, S Italy, on the eastern shore of the Bay of Naples, SE of Naples. The only other active volcano on the European mainland is the Campi Fl...

bass, in zoology

(Encyclopedia)bass băs [key], common name applied to various fishes of Centrarchidae (black basses and sunfishes), Serranidae (sea basses and groupers), Moronidae (temperate basses), and other families. All basses...

Dunbar, William, American scientist

(Encyclopedia)Dunbar, William, 1749–1810, American scientist in the old Southwest, b. near Elgin, Scotland. He came to America in 1771. Commissioned by President Jefferson to investigate the Ouachita and Red Rive...

Glaisher, James

(Encyclopedia)Glaisher, James glāˈshər [key], 1809–1903, English meteorologist and balloonist, b. London. He served as superintendent of the department of meteorology and magnetism at Greenwich Observatory fro...

Flamsteed, John

(Encyclopedia)Flamsteed, John flămˈstēd [key], 1646–1719, English astronomer. He was appointed (1675) astronomer royal by King Charles II and carried on his researches at Greenwich Observatory. Over his protes...