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aesthetics

(Encyclopedia)aesthetics ĕsthĕtˈĭks [key], the branch of philosophy that is concerned with the nature of art and the criteria of artistic judgment. The classical conception of art as the imitation of nature was...

chronometer

(Encyclopedia)chronometer krənŏmˈətər [key], instrument for keeping highly accurate time, used especially in navigation. Before the advent of radio time signals it was the only device that provided the time ac...

copyright

(Encyclopedia)copyright, right granted by statute to the author or originator of certain literary, artistic, and musical productions whereby for a limited period of time he or she controls the use of the product. T...

hourglass

(Encyclopedia)hourglass, glass instrument for measuring time, usually consisting of two bulbs united by a narrow neck. One bulb is filled with fine sand that runs through the neck into the other bulb in an hour's t...

Dylan, Bob

(Encyclopedia)Dylan, Bob dĭlˈən [key], 1941–, American singer and composer, b. Duluth, Minn., as Robert Zimmerman. Dylan learned guitar at the age of 10 and autoharp and harmonica at 15. After a rebellious you...

Nicaea, First Council of

(Encyclopedia)Nicaea, First Council of, 325, 1st ecumenical council, convened by Roman Emperor Constantine the Great to solve the problems raised by Arianism. It has been said that 318 persons attended, but a more ...

Lamennais, Félicité Robert de

(Encyclopedia)Lamennais or La Mennais, Félicité Robert de fālēsētāˈ rōbĕrˈ də lämənāˈ [key], 1782–1854, French Roman Catholic apologist and liberal, b. Saint-Malo. He was largely self-educated by w...

Ledru-Rollin, Alexandre Auguste

(Encyclopedia)Ledru-Rollin, Alexandre Auguste älĕksäNˈdrə ôgüstˈ lədrüˈ-rôlăNˈ [key], 1807–74, French politician. A lawyer, he first became known as a radical opponent to the accession (1830) of Lou...

Martin V, 1368–1431, pope

(Encyclopedia)Martin V, 1368–1431, pope (1417–31), a Roman named Oddone Colonna; successor of Gregory XII. He was created cardinal by Innocent VII, and in the schism (see Schism, Great) he attended and supporte...

Barnard, Frederick Augustus Porter

(Encyclopedia)Barnard, Frederick Augustus Porter, 1809–89, American educator and mathematician, b. Sheffield, Mass., grad. Yale, 1828. After tutoring at Yale and teaching in institutions for the deaf and mute, he...