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Penzias, Arno Allan

(Encyclopedia)Penzias, Arno Allan, 1933–, German-American physicist, b. Munich, Germany, Ph.D. Columbia Univ., 1962. He fled Nazi Germany with his family and after finishing school began work at Bell Telephone La...

theodolite

(Encyclopedia)theodolite thēŏdˈəlītˌ [key], calibrated optical instrument used to determine relative position in surveying, navigation, and meteorology. It is similar in construction to a surveyor's transit, ...

ring, in astronomy

(Encyclopedia)ring, in astronomy, relatively thin band of rocks and dust and ice particles that orbit around a planet in the planet's equatorial plane. All four of the giant planets in the solar system—Jupiter, S...

presbytery

(Encyclopedia)presbytery prĕzˈbĭtĕrˌē, prĕsˈ– [key], in architecture, the space in the eastern end of a church reserved for the higher clergy. It was also known in the early Christian Church as the apse, ...

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 small monoplane, ...

parity

(Encyclopedia)parity or space parity, in physics, quantity that refers to the relationship between an object or process and the image that it can produce in a mirror. For example, any right-handed object will produ...

Canary Islands

(Encyclopedia)Canary Islands, Span. Islas Canarias, group of seven islands (2020 est. pop. 2,161,000), 2,875 sq mi (7,445 sq km), autonomous community of Spain, ...

Gagarin, Yuri Alekseyevich

(Encyclopedia)Gagarin, Yuri Alekseyevich yo͞oˈrē əlyĭksyāˈyəvĭch gägäˈrĭn [key], 1934–68, Russian astronaut (cosmonaut), b. near Gzhatsk, RSFSR. He was the first in history to be rocketed into orbita...

More, Henry

(Encyclopedia)More, Henry, 1614–87, English philosopher, one of the foremost representatives of the school of Cambridge Platonists. His writings emphasized the mystical and theosophic phases of that philosophy, a...

Leonov, Aleksei Arkhipovich

(Encyclopedia)Leonov, Aleksei Arkhipovich ŭlˌyĭksyāˈ ärkhˌyĭpôˈvyĭch [key], 1934–2019, Soviet-Russian cosmonaut and military officer. While serving as copilot of Voskhod 2 (Mar. 18–19, 1964), he beca...