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Faraday, Michael
(Encyclopedia)Faraday, Michael fârˈədē, –dāˌ [key], 1791–1867, English scientist. The son of a blacksmith, he was apprenticed to a bookbinder at the age of 14. He had little formal education, but acquired...Sacco-Vanzetti Case
(Encyclopedia)Sacco-Vanzetti Case săkˈō-vănzĕtˈē [key]. On Apr. 15, 1920, a paymaster for a shoe company in South Braintree, Mass., and his guard were shot and killed by two men who escaped with over $15,000...relativity
(Encyclopedia)relativity, physical theory, introduced by Albert Einstein, that discards the concept of absolute motion and instead treats only relative motion between two systems or frames of reference. One consequ...letters
(Encyclopedia)letters, in literature, written messages, ranging from those addressed to the public and those sent from lover to lover, to business letters and thank-you notes. The common quality they share is a liv...Orkney Islands
(Encyclopedia)Orkney Islands, archipelago and council area (1991 pop. 19,650), 376 sq mi (974 sq km), N Scotland, consisting of about 70 islands in the Atlantic Ocean and the North Sea, N of Scottish mainland acros...Walcott, Derek Alton
(Encyclopedia)Walcott, Derek Alton, 1930–2017, West Indian dramatist and poet, b. Castries, St. Lucia, grad. Univ. of the West Indies, Mona, Jamaica, 1953. His grandfathers were both white, one of English, the ot...La Follette, Robert Marion
(Encyclopedia)La Follette, Robert Marion ləfŏlˈĭt [key], 1855–1925, American political leader, U.S. Senator from Wisconsin (1906–25), b. Primrose, Wis. Robert La Follete's wife, Belle Case La Follette, 18...magnetism
(Encyclopedia)CE5 Lines of induction around a single bar magnet and between opposite poles of different magnets magnetism, force of attraction or repulsion between various substances, especially those made of i...physics
(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...light
(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...Browse by Subject
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