dondi giovanni
91San Marino — This article is about the country in southern Europe. For other uses, see San Marino (disambiguation). Republic of San Marino Repubblica di San Marino …
92Astrolabe — The astrolabe is a historical astronomical instrument used by classical astronomers, navigators, and astrologers. Its many uses included locating and predicting the positions of the Sun, Moon, planets and stars; determining local time given local …
93Water clock — For the individual water clock at The Children s Museum of Indianapolis, see Water clock (Indianapolis). A display of two outflow water clocks from the Ancient Agora Museum in Athens. The top is an original from the late 5th century BC. The… …
94Clockmaker — Woodcut of medieval clockmakers, 1568 …
95Verge escapement — showing (c) crown wheel, (v) verge, (p,q) pallets Ve …
96Balance wheel — in a cheap 1950s alarm clock, the Apollo, by Lux Mfg. Co. showing the balance spring (1) and regulator (2) …
97Su Song — 蘇頌 (Sū Sòng) Born 1020 near Quanzhou Died 1101 (aged 80–81) Nationality Chinese …
98Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances …
99Musée international d'horlogerie — (MIH) is a museum located in La Chaux de Fonds, Switzerland, dedicated to horology, which is the study of time, timekeeping and timekeeping devices (primarily clocks and watches). The museum is owned and operated by the city of La Chaux de Fonds …
100Silvio Bedini — (January 17 1917 November 14 2007) was an American historian, specialising in early scientific instruments. He was Historian Emeritus of the Smithsonian Institution, where he served on the professional staff for twenty five years, retiring in… …
