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ballistics

(Encyclopedia)ballistics bəlĭsˈtĭks [key], science of projectiles. Interior ballistics deals with the propulsion and the motion of a projectile within a gun or firing device. Its problems include the ignition a...

seeing

(Encyclopedia)seeing, in astronomy, the clarity with which stars and other celestial objects can be observed. It is primarily determined by the atmosphere of the earth. The most obvious phenomenon is twinkling, whe...

Crome, John

(Encyclopedia)Crome, John, 1768–1821, English landscape painter, b. Norwich. Crome was the principal painter of the Norwich school. He is often called Old Crome to distinguish him from his son who painted in the ...

mezzotint

(Encyclopedia)mezzotint mĕtˈsətĭnt, mĕdˈzə–, mĕzˈə– [key] [Ital.,=halftint], method of copper or steel engraving in tone. A Dutch officer, Ludwig von Siegen, is given credit for the invention of mezzo...

Ausonius

(Encyclopedia)Ausonius (Decimus Magnus Ausonius) ôsōˈnēəs [key], c.310–c.395, Latin poet and man of letters, b. Bordeaux. He tutored Gratian, who, when he ascended the throne, made Ausonius prefect of Gaul, ...

Sachs, Hans

(Encyclopedia)Sachs, Hans häns zäks [key], 1494–1576, German poet, leading meistersinger of the Nuremberg school. A shoemaker and guild master, he wrote more than 4,000 master songs in addition to some 2,000 fa...

Töpffer, Rodolphe

(Encyclopedia)Töpffer, Rodolphe rôdôlfˈ töpˈfər [key], 1799–1846, Swiss artist and writer, b. Geneva. Often called the father of the comic strip (or the graphic novel), he wanted to be a painter but found ...

Zephaniah, book of the Bible

(Encyclopedia)Zephaniah zĕfˌənīˈə [key], prophetic book of the Bible. The prophet, who lived in the reign (c.640–609 b.c.) of King Josiah of Judah, traces his genealogy to King Hezekiah. Zephaniah denounces...

Roger of Wendover

(Encyclopedia)Roger of Wendover, d. c.1236, English chronicler, a monk of St. Albans. As historiographer of St. Albans, he began the Flores historiarum (see Matthew of Westminster), a general chronicle starting wit...

Green, George

(Encyclopedia)Green, George, 1793–1841, English mathematician and physicist. He was largely self-taught until, in 1833, he entered Caius College, Cambridge. In addition to making a number of contributions to the ...