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weights and measures

(Encyclopedia)CE5 weights and measures, units and standards for expressing the amount of some quantity, such as length, capacity, or weight; the science of measurement standards and methods is known as metrology...

Sault Sainte Marie, city, Canada

(Encyclopedia)Sault Sainte Marie so͞o sānt mərēˈ [key], city (1991 pop. 81,476), S Ont., Canada, on the St. Marys River opposite Sault Ste Marie, Mich. A bridge connects the two cities. Sault Ste Marie is an i...

dark matter

(Encyclopedia)dark matter, material that is believed to make up nearly 27% of the mass of the universe but is not readily visible because it neither emits nor reflects electromagnetic radiation, such as light or ra...

Teschen

(Encyclopedia)Teschen tĕˈshən [key], Czech Tĕšín, Pol. Cieszyn, former principality (c.850 sq mi/2,200 sq km), now divided between the Czech Republic and Poland. Teschen was its chief town. A part of Silesia,...

Europe

(Encyclopedia)CE5 Europe yo͝orˈəp [key], 6th largest continent, c.4,000,000 sq mi (10,360,000 sq km) including adjacent islands (2015 est. pop. 740,814,000). It is actually a vast peninsula of the great Euras...

hydrogen peroxide

(Encyclopedia)hydrogen peroxide, chemical compound, H2O2, a colorless, syrupy liquid that is a strong oxidizing agent and, in water solution, a weak acid. It is miscible with cold water and is soluble in alcohol an...

Michael the Brave

(Encyclopedia)Michael the Brave, d. 1601, prince of Walachia (1593–1601), of Transylvania (1599–1600), and of Moldavia (1600). Michael was one of Romania's greatest medieval rulers, as well as a celebrated mili...

Lochiel, the Gentle

(Encyclopedia)Lochiel, the Gentle: see Cameron of Lochiel, Donald. ...

Louis the Bavarian

(Encyclopedia)Louis the Bavarian: see Louis IV, Holy Roman emperor. ...

Louis the Child

(Encyclopedia)Louis the Child, 893–911, German king (900–911), son and successor of King Arnulf. He was the last of the German line of the Carolingians. The archbishop of Mainz was regent for him. During his re...