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photometry

(Encyclopedia)photometry fōtŏmˈətrē [key], branch of physics dealing with the measurement of the intensity of a source of light, such as an electric lamp, and with the intensity of light such a source may cast...

Taylor, Frederick Winslow

(Encyclopedia)Taylor, Frederick Winslow, 1856–1915, American industrial engineer, b. Germantown, Pa., grad. Stevens Institute of Technology, 1883. He was called the father of scientific management. His management...

Hohenstaufen

(Encyclopedia)Hohenstaufen hōˌənshtouˈfən [key], German princely family, whose name is derived from the castle of Staufen built in 1077 by a Swabian count, Frederick. In 1079, Frederick married Agnes, daughter...

Athabasca Pass

(Encyclopedia)Athabasca Pass, 5,736 ft (1,748 m) high, W Alta. and E British Columbia, Canada, leading from the headwaters of the Athabasca River across the Continental Divide to the Columbia River. It was discover...

Ross, Betsy

(Encyclopedia)Ross, Betsy, 1752–1836, American seamstress, b. Philadelphia. Her full name was Elizabeth Griscom Ross Ashburn Claypoole. She is known to have made flags during the American Revolution, although the...

Thomson, Mortimer Neal

(Encyclopedia)Thomson or Thompson, Mortimer Neal, 1831–75, American journalist and humorist who used the pseudonym Q. K. Philander Doesticks, P.B., b. Riga, N.Y. He joined the staff of the New York Tribune in 185...

Kamloops

(Encyclopedia)Kamloops kămˈlo͞ops [key], city (1991 pop. 67,057), S British Columbia, Canada, at the junction of the North Thompson and South Thompson rivers. A trading post was first established on the site in ...

Gage, Thomas, English traveler

(Encyclopedia)Gage, Thomas, d. 1656, English traveler. He went (1612) to Spain to study and became a Dominican. He lived and traveled among the Native populations of Central America from 1625 to 1637, when he retur...

Pratt, Matthew

(Encyclopedia)Pratt, Matthew, 1734–1805, American portrait painter, b. Philadelphia. After he was an apprentice to his uncle, a painter in Philadelphia, he practiced portrait painting and then studied under Benja...

Fernán González

(Encyclopedia)Fernán González fārnänˈ gōnthäˈlāth [key], d. 970, first count of Castile. As count of Burgos from c.930 he took advantage of Leonese divisions and the war against the Moors to establish the ...