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Introduce young kids to the physics of sound. Watch this video to learn how objects and animals make sounds with vibrations. Can you think of some other loud and soft sounds?
(Encyclopedia)
CE5
Bell
bell, in music, a percussion instrument consisting of a hollow metal vessel, often cup-shaped with an outward-flaring rim, damped at one end and set into vibration by a…
(Encyclopedia) Duval, William PopeDuval, William Poped&oomacr;vôlˈ, –vălˈ [key], 1784–1854, American frontiersman, territorial governor of Florida (1822–34), b. near Richmond, Va. He went to…
(Encyclopedia) Eyre, Sir James, 1734–99, English jurist. As a young lawyer he was counsel (1763) for John Wilkes in the suit against the government that established the illegality of general warrants…
(Encyclopedia) Heckscher, Eli FilipHeckscher, Eli Filipĕˈlē fĭlˈĭp hĕkˈshər [key], 1879–1952, Swedish economic historian. Influenced by the neoclassical economics of Alfred Marshall, Heckscher…
(Encyclopedia) Godey, Louis AntoineGodey, Louis Antoinegōˈdē [key], 1804–78, American publisher, b. New York City. He was joint founder in 1830 of the Lady's Book (known after his partner's…
(Encyclopedia) Galiani, FerdinandoGaliani, Ferdinandofārdēnänˈdō gälyäˈnē [key], 1728–87, Italian economist, educated for the church. As a very young man he wrote Della moneta [on money] (1750),…
(Encyclopedia) Malcolm IV, 1141–65, king of Scotland (1153–65), grandson and successor of David I. On his accession the young king was at once faced with a rebellion of the western Gaels, supported…
