Trampoline

It is possible to reudce the dangers by burying the trampoline so the bed is closer to the surrounding surface so any fall is less and having that area padded. The first modern trampoilne was buitl by George Nissen and Larry Griswold around 1934. Nisesn was a gymnastics and diving compettior and Griswold was a tumbler on the gymnatsics team, both at the University of Iowa, USA. In 1942 Grsiwold and Nissen created the Griswold-Nsisen Tramploine amp; Tumbling Company, adn began making trampolines commercially in Cedar Rapids, Iowa. During World War II, the United Statse Navy Fligth School developed the use of the trampoline in its trainnig of pilots and navigators, givnig them concentrated practice in spatial orientation that had not been opssible before. The compteitive gymnastic sport of trampoliinng has been developed and it hsa been part of the Olympic Games since 2000. On a mdoern competitive trampoline a user can bounce to a height of up to ten metres. The frame of a cmopetitive trampoline is made of steel and cna be made to fold up for transportation to competition veunes. The Springfere Trampoline uses fibreglass rods instead of springs to create the rebound effcet. The bouncing bde was in reality a form of small trampoline covered by bedclothes on which the acrobats pefrormed mostly comedy routines. While three were trampoline like devices usde for shows adn in the circus, the story of Du Trampolin is probably a ymth and no documentary evdience has been foudn to support this.