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Greek music

(Encyclopedia)Greek music, the music of the ancient and modern inhabitants of Greece. Dormant for nearly two thousand years, Greek music underwent a musical rebirth in the 19th cent. with the works of the opera c...

Stonehenge

(Encyclopedia)Stonehenge stōnˈhĕnjˌ [key], group of standing stones on Salisbury Plain, Wiltshire, S England. Preeminent among megalithic monuments in the British Isles, it is similar to an older and larger mon...

Magna Carta

(Encyclopedia)Magna Carta or Magna Charta [Lat., = great charter], the most famous document of British constitutional history, issued by King John at Runnymede under compulsion from the barons and the church in...

Tolstoy, Leo, Count

(Encyclopedia)Tolstoy, Leo, Count, Rus. Lev Nikolayevich Tolstoi (lyĕf), 1828–1910, Russian novelist and philosopher, considered one of the world's greatest writers. About 1876 the doubts that had beset Tols...

seismology

(Encyclopedia)seismology sīzmŏlˈəjē, sīs– [key], scientific study of earthquakes and related phenomena, including the propagation of waves and shocks on or within the earth by natural or artificially genera...

clock

(Encyclopedia)CE5 A pendulum clock: Weight-driven clock mechanism clock, instrument for measuring and indicating time. Predecessors of the clock were the sundial, the hourglass, and the clepsydra. See also watc...

Galileo

(Encyclopedia)Galileo (Galileo Galilei) gălˌĭlēˈō; gälēlĕˈō gälēlĕˈē [key], 1564–1642, great Italian astronomer, mathematician, and physicist. By his persistent investigation of natural laws he la...

peace congresses

(Encyclopedia)peace congresses, multinational meetings to achieve or preserve peace and to prevent wars. Although philosophical and religious pacifism is almost as old as war itself, organized efforts to outlaw war...

science fiction

(Encyclopedia)science fiction, literary genre in which a background of science or pseudoscience is an integral part of the story. Although science fiction is a form of fantastic literature, many of the events recou...

spectrum

(Encyclopedia)CE5 Dispersion of white light by a triangular prism spectrum, arrangement or display of light or other form of radiation separated according to wavelength, frequency, energy, or some other propert...

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