(Encyclopedia) electroscope, device for detecting electric charge invented by Nollet in 1748. There are various types of electroscopes. The most common has a cylindrical metal case closed by two…
(Encyclopedia) Schopenhauer, ArthurSchopenhauer, Arthurärˈt&oobreve;r shōˈpənhouˌər [key], 1788–1860, German philosopher, b. Danzig (now Gdansk). The bias of his own temperament and experience…
(Encyclopedia) Joel, prophetic book of the Bible. It is a collection of the oracles of an otherwise unknown prophet, dated variously from the 9th to the 3d cent. b.c., though a date in c.400 b.c. is…
(Encyclopedia) Truman, Harry S., 1884–1972, 33d President of the United States, b. Lamar, Mo.
Truman remained active in politics for many years after his retirement, campaigning around the…
(Encyclopedia) legacy, bequest by will of personal property, similar in many respects to a gift causa mortis. A legacy ordinarily is distinguished from a devise, which transfers real property by will…
(Encyclopedia) Marshall, George Catlett, 1880–1959, American general and cabinet member, b. Uniontown, Pa. A career army officer, Marshall graduated from the Virginia Military Institute. He first…
(Encyclopedia) Schick test, diagnostic test designed to evaluate susceptibility to diphtheria. A small amount of diphtheria toxin is injected into the skin; the injection will produce an area of…
