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Longinus, c.213–273, Greek rhetorician and philosopher

(Encyclopedia)Longinus (Cassius Longinus), c.213–273, Greek rhetorician and philosopher of the Neoplatonic school. He taught rhetoric at Athens. He later became counselor to Queen Zenobia of Palmyra; when the ant...

Nodier, Charles

(Encyclopedia)Nodier, Charles shärl nôdyāˈ [key], 1780–1844, French novelist and poet. From 1824 he was librarian of the Bibliothèque de l'Arsenal in Paris. His salon was the nucleus of the beginning romanti...

Paré, Ambroise

(Encyclopedia)Paré, Ambroise äNbrwäzˈ pärāˈ [key], c.1510–1590, French surgeon. Serving in the army, he revived the use of ligature instead of cautery with boiling oil and continued to devise and champion ...

thermite

(Encyclopedia)thermite [from Thermit, a trade name], mixture of powdered or granular aluminum metal and powdered iron oxide. When ignited it gives off large amounts of heat. In wartime it has been used in incendiar...

boiling point

(Encyclopedia)boiling point, temperature at which a substance changes its state from liquid to gas. A stricter definition of boiling point is the temperature at which the liquid and vapor (gas) phases of a substanc...

Lodge, Sir Oliver Joseph

(Encyclopedia)Lodge, Sir Oliver Joseph, 1851–1940, English physicist, grad. University College, London (B.S., 1875; D.Sc., 1877). He made valuable contributions to the development of wireless telegraphy and condu...

ventilation

(Encyclopedia)ventilation, process of supplying fresh air to an enclosed space and removing from it air contaminated by odors, gases, or smoke. Proper ventilation requires also that there be a movement or circulati...

thermosets

(Encyclopedia)thermosets, materials that can not be softened on heating. In thermosetting polymers, the polymer chains are joined (or cross-linked) by intermolecular bonding. Thermosets are usually supplied as part...

Cavendish, Henry

(Encyclopedia)Cavendish, Henry, 1731–1810, English physicist and chemist, b. Nice. He was the son of Lord Charles Cavendish and grandson of the 2d duke of Devonshire. He was a recluse, and most of his writings we...

Alger, Horatio

(Encyclopedia)Alger, Horatio ălˈjər [key], 1834–99, American writer of boys' stories, b. Revere, Mass. He wrote over 100 books for boys, the first, Ragged Dick, being published in 1867. By leading exemplary li...