sábado, 14 de marzo de 2015

The history of bicycles

The bicycle is pollution free alternative to lees sustainable transportation modes,encouraging bicycling as a transportation mode may help cities and other agencies reduce traffic,also providing health benefits and contributing to livable communities.



The bicycles have been around for almost two houndred yeras now,and they  have envolved significantly during that time,the first bicycles were built completely different and were not nearly as confortables as now.



This are the aspects most important and interesting aspects of bicycle's history,I am amazed by what they are now.
  • 1817 Draisienne or the running machine;Invented by Bain Karl Von Drais,Germany,This machine was less like a bycicle it did have a typical bycicle frame and two  wheels,but it was propelled by walking.
  • 1860  Velocipede or boneshaker;two wheeled bicycle with pedals and cranks on frent wheel.
  • 1870 High wheeled bicycle;one of the  first models to be called a bycicle.
  • 1885 Rover safety bycicle;invented by john Kemp Starely England featured a strong enough metal to make a chain,plus it had two same sized wheels and a similar frame today's bicycles.
  • 1910 Kid's bicycles become popular
  • 1940 Buit in kicklands developed.
  • 1960 Racing bicycles become popular and feature dropped handlebars ,narrow tires,numerous speeds and a lighter frame.
  • 1980 Spurred by mountain biking and extreme sports.
  • 1996 Mountain bicycles appear in the olympics game 

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