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milling

(Encyclopedia)milling, mechanical grinding of wheat or other grains to produce flour. Milling separates the fine, mealy parts of grain from the fibrous bran covering. In prehistoric times grain was crushed between ...

Archimedes' principle

(Encyclopedia)Archimedes' principle, principle that states that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid. The principle applies to both floating and submerged bo...

Pei, I. M.

(Encyclopedia)Pei, I. M. (Ieoh Ming Pei) pā [key], 1917–2019, Chinese-American architect, b. Guangzhou, China. Pei immigrated to the United States in 1935 and studied at the Univ. of Pennsylvania, the Massachuse...

Niépce, Joseph Nicéphore

(Encyclopedia)Niépce, Joseph Nicéphore zhôzĕfˈ nēsāfôrˈ nyĕps [key], 1765–1833, French chemist who originated a process of photography (see photography, still). In 1826 he produced the first known photo...

Linz

(Encyclopedia)Linz lĭnts [key], city (1991 pop. 203,044), capital of Upper Austria, NW Austria, a major port on the Danube River. It is a commercial and industrial center and a rail junction. Manufactures include ...

Luhansk

(Encyclopedia)Luhansk lo͞ohänskˈ [key], Rus. Lugansk, city (1989 pop. 497,000), capital of Luhansk region, E Ukraine, at the confluence of the Luhan and Vilkhivka rivers, in the Donets Basin. Its products includ...

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...

Monongahela

(Encyclopedia)Monongahela mənŏnˌgəhēˈlə, –hāˈlə [key], river, 128 mi (206 km) long, formed at Fairmont, N W.Va., by the junction of the West Fork and Tygart rivers. It flows north, through a valley mark...

Mülheim an der Ruhr

(Encyclopedia)Mülheim an der Ruhr mülˈhīm än dĕr ro͞or [key] or Mülheim, city (1994 pop. 177,175), North Rhine–Westphalia, W Germany, on the Ruhr River. It is an industrial center of the Ruhr district and...

Mulhouse

(Encyclopedia)Mulhouse mülo͞ozˈ [key], Ger. Mülhausen, city (1990 pop. 109,905), Haut-Rhin dept., E France, in Alsace, on the Ill River and the Rhône-Rhine canal. Cotton, wool, and clothing are the chief manuf...