Columbia Encyclopedia
Search results
500 results found
vertical circle
(Encyclopedia)vertical circle, in astronomy, the great circle on the celestial sphere that passes from the observer's zenith through a given celestial body. In the altazimuth coordinate system the altitude of a bod...Beta Crucis
(Encyclopedia)Beta Crucis kro͞oˈsĭs [key]: see Mimosa, in astronomy. ...Arecibo Observatory
(Encyclopedia)Arecibo Observatory, radio-astronomy facility located near Arecibo, Puerto Rico, part of the National Astronomy and Ionosphere Center. Conceived by, designed by, and built under the supervision of Wil...Lodge, Sir Oliver Joseph
(Encyclopedia)Lodge, Sir Oliver Joseph, 1851–1940, English physicist, grad. University College, London (B.S., 1875; D.Sc., 1877). He made valuable contributions to the development of wireless telegraphy and condu...right ascension
(Encyclopedia)right ascension, in astronomy, one of the coordinates in the equatorial coordinate system. The right ascension of a celestial body is the angular distance measured eastward from the vernal equinox alo...nadir
(Encyclopedia)nadir nāˈdər [key] [Arab.,=opposite], in astronomy, the point on the celestial sphere directly opposite the zenith, i.e., directly beneath the observer. ...Langley, Samuel Pierpont
(Encyclopedia)Langley, Samuel Pierpont, 1834–1906, American scientist, b. Roxbury, Mass., received only a high school education but continued his studies in science in Boston libraries. He became, in 1866, profes...National Science Foundation
(Encyclopedia)National Science Foundation (NSF), an independent agency in the executive branch of the U.S. federal government concerned with promoting a national science policy by supporting basic research and educ...Alger, Horatio
(Encyclopedia)Alger, Horatio ălˈjər [key], 1834–99, American writer of boys' stories, b. Revere, Mass. He wrote over 100 books for boys, the first, Ragged Dick, being published in 1867. By leading exemplary li...Waley, Arthur
(Encyclopedia)Waley, Arthur, 1889–1966, English orientalist, b. London as Arthur David Schloss, educated at Cambridge. He was and still is considered one of the world's great Asian scholars. His most important wo...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
-
Places
+-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
