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A velocipede (/ v ə ˈ l ɒ s ə p iː d /) is a human-powered land vehicle with one or more wheels. The most common type of velocipede today is the bicycle . The term was probably first coined by Karl von Drais in French as vélocipède for the French translation of his advertising leaflet for his version of the Laufmaschine , also now called ...
The Roper steam velocipede was a steam-powered velocipede built by inventor Sylvester H. Roper of Roxbury, Boston, Massachusetts, United States sometime from 1867 to 1869.It is one of three machines which have been called the first motorcycle, [1] along with the Michaux-Perreaux steam velocipede, also dated 1867–1869, and the 1885 Daimler Reitwagen.
In the early days of motorised vehicle development, a number of experimenters built steam-powered vehicles with three wheels. The first steam tricycle – and probably the first true self-propelled land vehicle – was Nicolas-Joseph Cugnot's 1769 Fardier à vapeur (steam dray), a three-wheeled machine with a top speed of around 3 km/h (2 mph) originally designed for hauling artillery.
The Google Chart API allows a variety of graphs to be created. Livegap Charts creates line, bar, spider, polar-area and pie charts, and can export them as images without needing to download any tools. Veusz is a free scientific graphing tool that can produce 2D and 3D plots. Users can use it as a module in Python.
The trike pictured is called the SUV (Sensible Utility Vehicle) and is produced by the company Organic Engines, which operates in Florida in the United States. It is a front wheel drive tricycle, articulated behind the driver seat, and has hydraulic double disc brakes and internal hub gears. The passenger is protected from rain and sun with a ...
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Pie chart of populations of English native speakers. A pie chart (or a circle chart) is a circular statistical graphic which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice (and consequently its central angle and area) is proportional to the quantity it represents.
Jules-Albert de Dion, the engineer of Georges Bouton and his brother-in-law Charles-Armand Trépardoux, founded a workshop in 1882 near Paris.The first project was the production of steam boilers, then a fairly successful steam-powered tricycle from 1887, [1] which should have already reached a speed of 65 km/h. [3]