rate of a chronometer
51Geneva seal — The Geneva Seal (E.), Poinçon de Genève (F.), or Genfer Siegel (G.) is the official seal of the City and Canton of Geneva. When a variation of the official seal is applied to wrist watch movements, the Geneva Seal is the quality seal of the… …
52technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
53Gregorian calendar — For the calendar of religious holidays and periods, see Liturgical year. For this year s Gregorian calendar, see Common year starting on Saturday. 2011 in other calendars Gregorian calendar 2011 MMXI …
54Pitcairn Islands — Pitcairn, Henderson, Ducie and Oeno Islands Pitkern Ailen …
55Quartz clock — A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more… …
56Mary Celeste — This article is about the ship. For the album, see Mary Celeste (album). An 1861 painting of the Amazon (later renamed Mary Celeste) by an unknown artist (perhaps Honoré Pellegrin)[1] …
57East African Campaign (World War II) — Warbox conflict=East African Campaign partof=African Campaigns, World War II campaign= caption=Personnel from the King s African Rifles (KAR) collect weapons (mostly Carcano 1891 rifles) captured from Italian forces at Wolchefit Pass, Ethiopia,… …
58Musée 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 …
59Remontoire — In mechanical horology, a remontoire, (from the French remonter , meaning to wind ) is a small secondary source of power, a weight or spring, which runs the timekeeping mechanism and is itself periodically rewound by the timepiece s main power… …
60Hamburg [2] — Hamburg (hierzu der Stadtplan »Hamburg Altona« mit Registerblatt und die Tafel »Hamburger Bauten I u. II«), Hauptstadt des gleichnamigen Freistaates (s. oben), nimmt der Einwohnerzahl nach unter den Städten Europas die neunte Stelle, unter denen… …
