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Roue libre (9 min)
Pignon - chaine (11 min)

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Old Wooden Bicycle from 1800s; Design is old but it looks like it was recently built; Civil War

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This is a neat design, but looks very bumpy. There is no kind of shock absorber. The tires don't use rubber. Your feet are the brakes and gears. You can only walk it. It probably works nicely for very smooth surfaces that are slight declines.

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Le vélo volant, futur mode de transport des voyageurs d'affaires?

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Commémoration du premier voyage en vélocipède de l'histoire du deux roues dans le monde du 8 au 23 Août 2015

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Meilensteine der Naturwissenschaft und Technik

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The evolution of the bicycle through years

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Animation : Thallis Vestergaard Music : Flying Home by The Benny Goodman Sextet visualartwork.dk "A bicycle is a two wheeled, human-powered vehicle, with one wheel behind the other." The first track of the bicycle goes back to 1493 where Leonardo da Vinci made a sketch of a very advanced bicycle.