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Attenborough, Sir David Frederick

(Encyclopedia)Attenborough, Sir David Frederick, 1926–, British naturalist and television personality. After serving in the Royal Navy (1947–49), he worked as an editor, then joined the BBC (1952) as a producer...

center of mass

(Encyclopedia)center of mass, the point at which all the mass of a body may be considered to be concentrated in analyzing its motion. The center of mass of a sphere of uniform density coincides with the center of t...

Latter Day Saints, Reorganized Church of Jesus Christ of

(Encyclopedia)Latter Day Saints, Reorganized Church of Jesus Christ of: see Community of Christ. ...

continent

(Encyclopedia)continent, largest unit of landmasses on the earth. The continents include Eurasia (conventionally regarded as two continents, Europe and Asia), Africa, North America, South America, Australia, and An...

Moho

(Encyclopedia)Moho mōˌhōrōˈvəchĭch [key]: see earth. ...

Nut, in Egyptian religion

(Encyclopedia)Nut no͝ot, nŭt [key], in Egyptian religion, sky-goddess. She was the sister-wife of the earth god Geb, to whom she bore Osiris, Isis, Set, and Nephthys. She was sometimes represented with her hands ...

inclination

(Encyclopedia)inclination, in astronomy, the angle of intersection between two planes, one of which is an orbital plane. The inclination of the plane of the moon's orbit is 5°9′ with respect to the plane of the ...

chemosynthesis

(Encyclopedia)chemosynthesis, process in which carbohydrates are manufactured from carbon dioxide and water using chemical nutrients as the energy source, rather than the sunlight used for energy in photosynthesis....

Sabbath

(Encyclopedia)Sabbath [Heb.,=repose], in Judaism, last day of the week (Saturday), observed as a rest day for the twenty-five hours commencing with sundown on Friday. In the biblical account of creation (Gen. 1) th...

Ashura

(Encyclopedia)Ashura, holy day in Islam, the 10th day of the month of Muharram. It commemorates the day Noah left the ark and the day Moses was saved by God from the Egyptians, and is a voluntary day of fasting for...