mechanical instrument
111Zhang Heng — For other uses, see Zhang Heng (disambiguation). This is a Chinese name; the family name is Zhang. Zhang Heng (張衡) Born …
112List of inventors — This is a list of inventors. See also: List of scientists, Timeline of invention, List of inventions named after people, List of inventors killed by their own inventions, and . Alphabetical list compactTOC NOTOC A * Vitaly Mikhaylovich Abalakov,… …
113Music sequencer — Contents 1 Modern sequencers 2 Software sequencers / DAWs with sequencing features 2.1 …
114Astronomie arabe — Miniature ottomane de l étude de la lune et des étoiles XVIIe siècle Dans l’histoire de l astronomie, l’astronomie arabe renvoie aux découvertes astronomiques accomplies par la civilisation islamique, particulièrement au cours de l’Âge d or… …
115Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
116Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
117Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …
118Absorption spectroscopy — An overview of electromagnetic radiation absorption. This example discusses the general principle using visible light as a specific example. A white beam source – emitting light of multiple wavelengths – is focused on a sample (the complementary… …
119Fairground organ — A fairground organ (or band organ (U.S.)) is a pipe organ designed for use in a commercial public fairground setting to provide loud music to accompany fairground rides and attractions. Unlike organs intended for indoor use they are designed to… …
120Calculator — For mechanical precursors to the modern calculator, see mechanical calculator. For other uses, see Calculator (disambiguation). An electronic pocket calculator with a 7‑segment LCD display, that can perform basic arithmetic operations …
