make-and-break mechanism
91keyboard instrument — ▪ music Introduction any musical instrument on which different notes can be sounded by pressing a series of keys, push buttons, or parallel levers. In nearly all cases in Western music the keys correspond to consecutive notes in the… …
92Vocal pedagogy — Vocal pedagogy, or voice pedagogy, is the study of the teaching of singing. Vocal pedagogists are people who study the teaching of singing. To some extent all voice teachers are vocal pedagogists because vocal pedagogy informs them about not only …
93pregnancy — /preg neuhn see/, n., pl. pregnancies. the state, condition, or quality of being pregnant. [1520 30; PREGN(ANT) + ANCY] * * * Process of human gestation that takes place in the female s body as a fetus develops, from fertilization to birth (see… …
94Thompson Center Arms — Thompson/Center Arms Company is an American firearms company based in Rochester, New Hampshire. The company is best known for its line of interchangeable barrel single shot pistols, and its muzzleloading rifles, though they have recently added a… …
95Digital Compact Cassette — For other uses, see DCC (disambiguation). Digital Compact Cassette Media type Magnetic tape Encoding Precision Adaptive Sub band Coding (MPEG 1 Audio Layer I) …
96Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …
97Nietzsche, Friedrich Wilhelm — Nietzsche Robin Small LIFE AND PERSONALITY Friedrich Wilhelm Nietzsche (1844–1900) is one of those thinkers whose personalities cannot easily be separated from their achievements in philosophy. This is not because his life was an unusually… …
98Charles de Gaulle — This article is about the French statesman. For other uses, see Charles de Gaulle (disambiguation). Charles De Gaulle President of the French Republic Co Prince of Andorra In office 8 January 195 …
99Pedersen rifle — The Pedersen Rifle, officially known in final form as the T1E3 rifle, was a United States semi automatic rifle designed by John Pedersen that was made in small numbers for testing by the United States Army during the 1920s as part of a program to …
100Carbon nanotube — Not to be confused with Carbon fiber. Part of a series of articles on Nanomaterials Fullerenes …
