articulated mechanical structure
51keyboard instrument — ▪ music Introduction any musical instrument on which different notes can be sounded by pressing a series of keys, push buttons, or parallel levers. In nearly all cases in Western music the keys correspond to consecutive notes in the… …
52Dalek variants — …
53EDUCATION, JEWISH — This entry is arranged according to the following outline. Bibliography at the end of a section is indicated by (†). in the biblical period the nature of the sources historical survey the patriarchal period and the settlement the kingdom the… …
54Albert Einstein — Einstein redirects here. For other uses, see Einstein (disambiguation) …
55DNA — For a non technical introduction to the topic, see Introduction to genetics. For other uses, see DNA (disambiguation). The structure of the DNA double helix. The atoms in the structure are colour coded by element and the detailed structure of two …
56International Phonetic Alphabet — Not to be confused with NATO phonetic alphabet. IPA redirects here. For other uses, see IPA (disambiguation). For usage of IPA in Wikipedia, see Wikipedia:IPA or Wikipedia:IPA/Introduction International Phonetic Alphabet …
57Robotic spacecraft — An artist s interpretation of the MESSENGER spacecraft at Mercury A robotic spacecraft is a spacecraft with no humans on board, that is usually under telerobotic control. A robotic spacecraft designed to make scientific research measurements is… …
58Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …
59Science (Philosophies of) — Philosophies of science Mach, Duhem, Bachelard Babette E.Babich THE TRADITION OF CONTINENTAL PHILOSOPHY OF SCIENCE If the philosophy of science is not typically represented as a ‘continental’ discipline it is nevertheless historically rooted in… …
60Italy — /it l ee/, n. a republic in S Europe, comprising a peninsula S of the Alps, and Sicily, Sardinia, Elba, and other smaller islands: a kingdom 1870 1946. 57,534,088; 116,294 sq. mi. (301,200 sq. km). Cap.: Rome. Italian, Italia. * * * Italy… …
