books.google.fr - A new, updated edition of a popular book on the history, science, and engineering of bicycles. The bicycle is almost unique among human-powered machines in that it uses human muscles in a near-optimum way. This new edition of the bible of bicycle builders and bicyclists provides just about everything...https://books.google.fr/books/about/Bicycling_Science.html?id=0JJo6DlF9iMC&utm_source=gb-gplus-shareBicycling Science