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Bicycle wheel with wooden rim Nipples Spokes Cross-section of a rim A Shimano Dura-Ace freehub-style hub A bicycle wheel is a wheel , most commonly a wire wheel , designed for a bicycle . A pair is often called a wheelset , especially in the context of ready built "off the shelf" performance-oriented wheels.
A freehub is a type of bicycle hub that incorporates a ratcheting mechanism. A set of sprockets (called a " cassette ") is mounted onto a splined shaft of the freehub to engage the chain . The ratcheting mechanism is a part of the hub, in contrast to a freewheel , an older technology, which contains both the sprockets and a ratcheting mechanism ...
The Swiss Federal Laboratories for Materials Science and Technology (Empa; German: Eidgenössische Materialprüfungs- und Forschungsanstalt, [2] French: Laboratoire fédéral d’essai des matériaux et de recherche, Italian: Laboratorio federale di prova dei materiali e di ricerca, Romansh: Institut federal da controlla da material e da perscrutaziun,) is a Swiss research institution for ...
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Federation of the Swiss Watch Industry: 1982 Bienne: Jean-Daniel Pasche Fortis (Swiss watchmaker) 1912 [1] Grenchen [1] Walter Vogt [1] Grenchen 40 Privately held company: Owner and CEO - Jupp Philipp Franck Muller: 1992 Geneva: Private company Franck Muller Frédérique Constant SA: 1988 Aletta and Peter Stas Geneva: Subsidiary of Citizen Holdings
The Navistar DT (Diesel Turbocharged or Diesel Turbo) engine family is a line of mid-range inline-6 diesel engines.With horsepower ratings ranging from 170 hp (130 kW) to 350 hp (260 kW), the Navistar DT engines are used primarily in medium-duty truck and bus applications such as school buses, although some versions have been developed for heavy-duty regional-haul and severe-service applications.
Robert Durrer (1890–1978) was a Swiss engineer who invented the basic oxygen steelmaking process (the Linz-Donawitz process, named after the towns where the technology was commercialized) during his career in Nazi Germany.
The Swiss coordinate system (or Swiss grid) is a geographic coordinate system used in Switzerland and Liechtenstein for maps and surveying by the Swiss Federal Office of Topography . A first coordinate system was introduced in 1903 under the name LV03 ( Landesvermessung 1903 , German for “land survey 1903”), based on the Mercator projection ...