90º:
“Among Michaux’s first customers were the leaders of the bicycle m0vement, about twenty in all, most with noble titles. “Struck with the importance of the idea,” explained one journalist, these “young men of leisure” aimed to establish the velocipede as a “common mode of locomotion.” Every evening they gathered to practice their strange art by the cascades in the Bois de Boulogne, the expansive park on the west side of Paris not far from the Michaux shop. From there, they invaded the fairgrounds of the ongoing Universal Exhibition, determined to show the world that a practical mechanical hor e was at last at hand. Le Sport described their evangelical spirit: “On your velocipe e! That is the rallying cry loudly repeated of late by a few intrepid Parisians, fanatics of this new means of locomotion…. [It will reach] every exhibitor booth and [from there] all corners of the earth.” (…) The bicycle movement quickly gained momentum as the year 1867 progressed. Although Michaux bicycles had not been formally admitted to the Universal Exhibition, under way since April, they were already in evidence at the fairgrounds that summer. Several foreign visitors purchased specimens and shipped them back to their homelands. By fall, a firm in Lyon and another near Grenoble had initiated production of the new-style two-wheeler. In September, La Vie Parisienne observed that “everyone is talking velocipedes.” In December, some one hundred riders, including several prominent
citizens, departed Paris en masse on their way to Versailles as part of a novel”tourist excursion.”
—Bicycle History
Recreations Mathematiques et physiques, 1696
Glider, 1900. Wright brothers
Dan Tate, at left, and Edward C. Huffaker, at right, launching the 1901 glider with either Wilbur or Orville piloting; Kitty Hawk, North Carolina.
Wilbur and Orville assembling the 1903 machine in the new camp building at Kill Devil Hills. Kitty Hawk, North Carolina
Estereo Planigraph, Deville.
Retícula canadiense, Deville
Perspectiva fotogramétrica, Hauck
