mechanical instrument
101Science and Technology in the Ottoman Empire — covers the topics related to achievements and distinguished events that happened during the existence of the empire. The study of scientific, cultural and intellectual aspects of Ottoman history is a very new area. The culturalist approach that… …
102Inventions in the modern Islamic world — [ Abdus Salam, the 1979 Nobel Prize in Physics recipient, include the electroweak interaction, electroweak symmetry breaking, magnetic photon, neutral current, preon, W and Z bosons, supergeometry, supermanifold, superspace and superfield.] This… …
103hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
104Music 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… …
105Mellotron — This article is about the Mellotron keyboard. For the Mellotron book, see Mellotron (book). A Mellotron The Mellotron is an electro mechanical, polyphonic tape replay keyboard originally developed and built in Birmingham, England in the early… …
106Street organ — A street organ is a mechanical organ designed to play in the street. The operator of a street organ is called an organ grinder. The two main types are the smaller German street organ and the larger Dutch street organ. In the United Kingdom,… …
107Photoconductive atomic force microscopy — (pc AFM) is a scientific technique.. Multi layer photovoltaic cells have gained popularity since mid 1980s.[1] At the time, research was primarily focused on single layer photovoltaic (PV) devices between two electrodes, in which PV properties… …
108Hammond organ — A close up of the Hammond L 100 organ, with the drawbars in the foreground The Hammond organ is an electric organ invented by Laurens Hammond in 1934 and manufactured by the Hammond Organ Company. While the Hammond organ was originally sold to… …
109Odometer — An odometer or odograph[1][2] is an instrument that indicates distance traveled by a vehicle, such as a bicycle or automobile. The device may be electronic, mechanical, or a combination of the two. The word derives from the Greek words hodós (… …
110Metronome — For other uses, see Metronome (disambiguation). Mechanical metronome A metronome is any device that produces regular, metrical ticks (beats, clicks) settable in beats per minute. These ticks represent a fixed, regular aural pulse; some metronomes …
