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New Stone Age
(Encyclopedia) New Stone Age: see Neolithic period.Reason, Age of
(Encyclopedia) Reason, Age of: see Enlightenment.old-age pension
(Encyclopedia) old-age pension: see pension; social security.Old Stone Age
(Encyclopedia) Old Stone Age: see Paleolithic period.age of consent
(Encyclopedia) age of consent, the age at which, according to the law, persons are bound by their words and acts. There are different ages at which one acquires legal capacity to consent to marriage…neutrino astronomy
(Encyclopedia) neutrino astronomy, study of stars by means of their emission of neutrinos, fundamental particles that result from nuclear reactions and are emitted by stars along with light.…polar bear
(Encyclopedia) polar bear, large white bear, Ursus maritimus, formerly Thalarctos maritimus, of the coasts of arctic North America, Asia, and Europe. Polar bears usually live on drifting pack ice,…Nordenskjöld, Nils Adolf Erik, Baron
(Encyclopedia) Nordenskjöld, Nils Adolf Erik, BaronNordenskjöld, Nils Adolf Erik, Baronnĭls äˈdôlf āˈrĭk n&oomacr;rˈdənshöld [key], 1832–1901, Swedish geologist and arctic explorer, first to…Jágr, Jaromír
(Encyclopedia) Jágr, Jaromír, 1972–, Czech ice hockey player, b. Kladno. Jágr played professional hockey in Czechoslovakia as a teenager, and joined the Pittsburgh Penguins of the National Hockey…Mars, in astronomy
(Encyclopedia) Mars, in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Mars has two natural satellites, discovered by Asaph Hall in 1877. The innermost…