File:Monocycle anglais.png
Monocycle_anglais.png (407 × 505 pixels, file size: 83 KB, MIME type: image/png)
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Summary
[edit]DescriptionMonocycle anglais.png |
Français : Louis Baudry de Saunier, Le Cyclisme théorique et pratique, Librairie illustrée, Paris, 1893, p.91
Monocycle anglais, envoyé à Paris en 1869. "Des contrepoids M et N reportaient le centre de gravité au-dessous de la roue et par conséquent enlevaient les chances de chute en avant et en arrière. D'ailleurs ce monocycle était beaucoup plus bas que les précédents : deux roues dentées, tangentes à l'intérieur au grand cercle, portaient les manivelles et abaissaient ainsi les pieds du cavalier à dix ou quinze centimètres du sol. Tout était ainsi combiné au mieux. Une seule opération avait été négligé et dont la pratique ne donna pas quitus, un simple calcul de mécanique ; pour maintenir au-dessus du centre de la roue le poids d'un homme, environ 70 kilos, il faudrait des contrepoids d'environ 200 kilos chacun, et pour mouvoir cette masse totale d'environ 300 kilos, il serait nécessaire de posséder la force d'un cheval ! - Devant ce raisonnement, le monocycle anglais s'évanouit." |
Date | |
Source | http://gallica.bnf.fr/ark:/12148/bpt6k147827w/f1.item |
Author | Louis Baudry de Saunier |
Licensing
[edit]Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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current | 07:54, 15 September 2017 | 407 × 505 (83 KB) | Hypsibius (talk | contribs) | User created page with UploadWizard |
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Horizontal resolution | 37.79 dpc |
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Vertical resolution | 37.79 dpc |