equal taper
11Rail adhesion — Driving wheel of steam locomotive The term adhesion railway or adhesion traction describes the most common type of railway, where power is applied by driving some or all of the wheels of the locomotive. Thus, it relies on the friction between a… …
12Origins of the American Civil War — For events following South Carolina s declaration of secession from the Union, see Battle of Fort Sumter and American Civil War. The Battle of Fort Sumter was the first stage in a conflict that had been brewing for decades. The main explanation… …
13Track spikes — are shoes used at most track and field events. They are lightweight shoes with spikes screwed into their bottom, or spike plate, in order to maximize traction (and therefore performance) when running, throwing or jumping. Design Near the front of …
14performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
15Space elevator — A space elevator for Earth would consist of a cable anchored to the Earth s equator, reaching into space. By attaching a counterweight at the end (or by further extending the cable upward for the same purpose), the center of mass is kept well… …
16Lorazepam — Systematic (IUPAC) name (RS) 9 chloro 6 (2 chlorophenyl) 4 hydroxy …
17United States public debt — Part of a series of articles on Unit …
18Pre-dreadnought battleship — is the general term for all of the types of sea going battleships built between the mid 1890s and 1905. Pre dreadnoughts replaced the ironclad warships of the 1870s and 1880s. Built from steel, and protected by hardened steel armour, pre… …
19Radio masts and towers — Masts of the Rugby VLF transmitter in England …
20Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
