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Major Planets of the Solar System (table)

(Encyclopedia)Major Planets of the Solar System ...

U.S. Customary System of weights and measures

(Encyclopedia)U.S. Customary System of weights and measures: see English units of measurement. ...

British Imperial System of weights and measures

(Encyclopedia)British Imperial System of weights and measures: see English units of measurement. ...

Gibbs, Josiah Willard

(Encyclopedia)Gibbs, Josiah Willard, 1839–1903, American mathematical physicist, b. New Haven, Conn., grad. Yale, 1858. He studied abroad and was professor of mathematical physics at Yale from 1871. His great con...

Slipher, Vesto Melvin

(Encyclopedia)Slipher, Vesto Melvin slīˈfər [key], 1875–1969, American astronomer, b. Mulberry, Ind. From 1901 he was at Lowell Observatory, Flagstaff, Ariz., where he served as director (1917–54). Much of h...

nebula

(Encyclopedia)nebula nĕbˈyo͝olə [key] [Lat.,=mist], in astronomy, observed manifestation of a collection of highly rarefied gas and dust in interstellar space. Prior to the 1960s this term was also applied to b...

Kepler's laws

(Encyclopedia)CE5 Schematic representation of Kepler's second law: The areas ABF and A′B′F′ are equal and are swept out in equal intervals of time by a planet orbiting around the sun (at F). Kepler's laws...

Pandora, in astronomy

(Encyclopedia)Pandora păndôrˈə [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XVII (or S17), Pandora is an irregularly shaped (nonspherical) body measuring a...

SI, abbreviation for the International System of Units

(Encyclopedia)SI: see International System of Units. ...

Herzberg, Gerhard

(Encyclopedia)Herzberg, Gerhard gĕrˈhärt hûrtsˈbûrg [key], 1904–99, Canadian physicist, b. Hamburg, Germany. He studied at Darmstadt, Göttingen, and Bristol, England, receiving a doctorate in engineering p...