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Needham, Joseph

(Encyclopedia) Needham, JosephNeedham, Josephnēdˈəm [key], 1900–1995, British biochemist, historian of science, and sinologist, b. London. He had a lifelong association with Cambridge, where he was…

entablature

(Encyclopedia) CE5 Corinthian entablature showing the parts of the architrave, frieze, and cornice entablatureentablatureĕntăbˈləch&oobreve;r [key], the entire unit of horizontal members…

yarn

(Encyclopedia) yarn, fibers or filaments formed into a continuous strand for use in weaving textiles or for the manufacture of thread. A staple fiber, such as cotton, linen, or wool, is made into…

Chatterton, Thomas

(Encyclopedia) Chatterton, Thomas, 1752–70, English poet. The posthumous son of a poor Bristol schoolmaster, he was already composing the “Rowley Poems” at the age of 12, claiming they were copies of…

hardness

(Encyclopedia) hardness, property of matter commonly described as the resistance of a substance to being scratched by another substance. The degree of hardness is relative, different substances being…

pitot static system

(Encyclopedia) pitot static systempitot static systempētōˈ [key], device for measuring the rate at which a fluid flows. Among the principal applications of the device are an airspeed indicator for…

compression

(Encyclopedia) compression, external stress applied to an object or substance, tending to cause a decrease in volume (see pressure). Gases can be compressed easily, solids and liquids to a very small…

stamen

(Encyclopedia) stamen, one of the four basic parts of a flower. The stamen (microsporophyll), is often called the flower's male reproductive organ. It is typically located between the central pistil…

Plato

(Encyclopedia) PlatoPlatoplāˈtō [key], 427?–347 b.c., Greek philosopher. Plato's teachings have been among the most influential in the history of Western civilization. Many of the late dialogues…

Moseley, Henry Gwyn Jeffreys

(Encyclopedia) Moseley, Henry Gwyn JeffreysMoseley, Henry Gwyn Jeffreysmōzˈlē [key], 1887–1915, English physicist, grad. Trinity College, Oxford, 1910. He began his research under Ernest Rutherford…