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Wooden dandy horse (around 1820), a patent-infringing copy of the first two-wheeler Original Laufmaschine of 1817 made to measure.. The dandy horse, an English nickname for what was first called a Laufmaschine ("running machine" in German), then a vélocipède or draisienne (in French and then English), and then a pedestrian curricle or hobby-horse, [1] or swiftwalker, [2] is a human-powered ...
It is the first reliable claim for a practically used precursor to the bicycle, basically the first commercially successful two-wheeled, steerable, human-propelled machine, nicknamed hobby-horse or dandy horse. [1] Drais's dandy horse, called Draisine in German, whose name was inherited by the rail vehicle. (Drawing published in 1817.)
The construction of the boneshaker was similar to the dandy horse: wooden wheels with iron tires and a framework of wrought iron. As the name implies it was extremely uncomfortable, but the discomfort was somewhat ameliorated by a long flat spring that supported the saddle and absorbed some of the shocks from rough road surfaces.
A dandy horse (built c. 1820) Balance bikes descend from the earliest two-wheeled bicycle, a Laufmaschine or dandy horse, invented by Karl Drais in 1817. [4] These early balance bikes consisted of a simple wooden frame with two wheels and no pedals, and were designed for adult use. [5] [6]
Karl Freiherr von Drais (full name: Karl Friedrich Christian Ludwig Freiherr Drais von Sauerbronn; 29 April 1785 – 10 December 1851) was a noble German forest official and significant inventor in the Biedermeier period. He was born and died in Karlsruhe. He is seen as "the father of the bicycle". [1]
Recent technological advances in adhesives and fabrication have made wood a feasible choice in the modern cycle world. [5]Wooden bicycle frames are sometimes aided by steel or composite lugs to connect the wooden tubes or attach components.
One, the scooter-like dandy horse or celerifere of the French Comte de Sivrac, dating to 1790, was long cited as the earliest bicycle, however, most historians now believe these unsteerable hobby-horses probably never existed, but were made up by Louis Baudry de Saunier, a 19th-century French bicycle historian.
Claude Shannon (1916–2016), founder of information theory and modern cryptography, invented Minivac 601, and co-invented the first wearable computer (with Edward O. Thorp) Ugo Cerletti (1877–1963), together with Lucio Bini (1908–1964), Italy – Electroconvulsive therapy; Leona Chalmers (c. 1937), U.S. – modern menstrual cup