striking lever
121Music box — For other uses, see Music box (disambiguation). A music box A music box (also musical box) is a 19th century automatic musical instrument that produces sounds by the use of a set of pins placed on a revolving cylinder or disc so as to pluck the… …
122Whammy bar — A whammy bar, tremolo arm/bar, or vibrato arm/bar is a component of a guitar, used to add vibrato to the sound by changing the tension of the strings, typically at the bridge or tailpiece. The whammy bar enables the player to quickly vary the… …
123Analog computer — An analog computer (spelt analogue in British English) is a form of computer that uses continuous physical phenomena such as electrical, [Universiteit van Amsterdam Computer Museum, (2007)] mechanical, or hydraulic quantities to model the problem …
124Historical materialism — Part of a series on Marxism …
125Joachim von Ribbentrop — Infobox Officeholder name = Joachim von Ribbentrop imagesize = small caption = order = Reich Minister of Foreign Affairs term start = February 4, 1938 term end = April 30, 1945 president = Adolf Hitler Führer chancellor = Adolf Hitler predecessor …
126M16 rifle — Rifle, 5.56 mm, M16 From top to bottom: M16A1, M16A2, M4A1, M16A4 Type Assault rifle Place  …
127Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
128Babylonia — Ancient Mesopotamia Euphrates · Tigris Sumer Eridu · Kish · Uruk · …
