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The Wall of Death, motordrome, silodrome〔The Harley-Davidson Reader. Jean Davidson, Hunter S. Thompson, Sonny Barger. MotorBooks International, 15 Aug 2006〕 or Well of Death (aka "''Maut ka Kuaa''", India) is a carnival sideshow featuring a silo- or barrel-shaped wooden cylinder, typically ranging from in diameter and made of wooden planks, inside which motorcyclists, or the drivers of miniature automobiles, travel along the vertical wall and perform stunts, held in place by friction〔(Mahanakorn's Physics Magic: The Wall Of Death ). Retrieved on 2015-10-12.〕 and centrifugal force. == Overview == Derived directly from United States motorcycle boardtrack (motordrome) racing in the early 1900s, the very first carnival motordrome appeared at Coney Island amusement park (New York) in 1911. The following year portable tracks began to appear on traveling carnivals. By 1915 the first "silodromes" with vertical walls appeared and were soon dubbed the "Wall of Death," although in San Francisco at the 1915 Panama Pacific International Exposition, the attraction was called the 'Race for Life', featuring both cars and motorcycles.〔http://www.postcard.org/ppie_zone/ppie_zone_part_3_of_4.pdf〕 The 'Race for Life' may be the first vertical-wall motordrome, as it debuted on Feb. 20th, 1915,〔Laura A. Ackley, "San Francisco's Jewel City: The Panama-Pacific International Exposition of 1915." Berkeley, CA: Heyday, 2014〕 when Coney Island was closed for the winter season. The motorcycles most widely used were the first generation Indian Scout models (pre-1928) with 37 cu. in. displacement. This carnival attraction became a staple in the United States outdoor entertainment industry with the phenomenon reaching its zenith in the 1930s, with more than 100 motordromes on traveling shows and in amusement parks. The audience views from the top of the drum, looking down. The riders start at the bottom of the drum, in the centre, and ascend an initial ramped section until they gain enough speed to drive horizontally to the floor, usually in a counter-clockwise direction (the physical explanation behind this act is found at Banked turn and The turning car.) This act also became popular in the United Kingdom, and often is seen at fairs. In the 2000s, there remain only few touring Walls of Death. "The Demon Drome",〔(The Demon Drome's website )〕 "Messhams Wall of Death" and the "Ken Fox Troupe".〔(Website of Ken Marshall Troupe )〕 These acts feature original American Indian motorcycles which have been in use since the 1920s. In the United States the premier show is the American Motor Drome Company, which uses several vintage Indian Scout Motorcycles from the 20s to give the audience a view of how these shows were done in their heyday. The Demon Drome uses the oldest wall of death still traveling and were the first to put an Austin 7 car on the wall of death since the 1950s. A similar act called the "Globe of Death" has the riders looping inside a wire mesh sphere rather than a drum. This form of motorcycle entertainment had a separate and distinct evolution from carnival motordromes and derived from bicycle acts or "cycle whirls" in the early 1900s. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「wall of death」の詳細全文を読む スポンサード リンク
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