Car Wallpapers

Car - photo wallpapers, Galawallpapers.com: An automobile is a wheeled passenger vehicle that carries its own motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to six people, typically have four wheels and be constructed principally for the transport of people rather than goods. However, the term is far from precise. As of 2002 there were 590 million passenger cars worldwide (roughly one car for every eleven people), of which 140 million in the U.S. (roughly one car for every two people). An automobile powered by the Otto gasoline engine was invented in Germany by Karl Benz in 1885. Benz was granted a patent dated 29 January 1886 in Mannheim for that automobile. Even though Benz is credited with the invention of the modern automobile, several other German engineers worked on building automobiles at the same time. In 1886, Gottlieb Daimler and Wilhelm Maybach in Stuttgart patented the first motor bike, built and tested in 1885, and in 1886 they built a converted horse-drawn stagecoach. In 1870, German-Austrian inventor Siegfried Marcus assembled a motorized handcart, though Marcus vehicle did not go beyond the experimental stage. In 1806 Fran�ois Isaac de Rivaz, a Swiss, designed the first internal combustion engine (sometimes abbreviated ICE today). He subsequently used it to develop the world's first vehicle to run on such an engine that used a mixture of hydrogen and oxygen to generate energy. The design was not very successful, as was the case with the British inventor, Samuel Brown, and the American inventor, Samuel Morey, who produced vehicles powered by clumsy internal combustion engines about 1826. Etienne Lenoir produced the first successful stationary internal combustion engine in 1860, and within a few years, about four hundred were in operation in Paris. About 1863, Lenoir installed his engine in a vehicle. It seems to have been powered by city lighting-gas in bottles, and was said by Lenoir to have travelled more slowly than a man could walk, with breakdowns being frequent. Lenoir, in his patent of 1860, included the provision of a carburettor, so liquid fuel could be substituted for gas, particularly for mobile purposes in vehicles. Lenoir is said to have tested liquid fuel, such as alcohol, in his stationary engines; but it does not appear that he used them in his own vehicle. If he did, he most certainly did not use gasoline, as this was not well-known and was considered a waste product. The next innovation occurred in the late 1860s, with Siegfried Marcus, a German working in Vienna, Austria. He developed the idea of using gasoline as a fuel in a two-stroke internal combustion engine. In 1870, using a simple handcart, he built a crude vehicle with no seats, steering, or brakes, but it was remarkable for one reason: it was the world's first vehicle using an internal combustion engine fueled by gasoline. It was tested in Vienna in September of 1870 and put aside. In 1888 or 1889, he built a second automobile, this one with seats, brakes, and steering, and included a four-stroke engine of his own design. That design may have been tested in 1890. Although he held patents for many inventions, he never applied for patents for either design in this category. The four-stroke engine already had been documented and a patent was applied for in 1862 by the Frenchman Beau de Rochas in a long-winded and rambling pamphlet. He printed about three hundred copies of his pamphlet and they were distributed in Paris, but nothing came of this, with the patent application expiring soon afterward and the pamphlet disappearing into obscurity. Most historians agree that Nikolaus Otto of Germany built the worlds first four-stroke engine although his patent was voided. He knew nothing of Beau de Rochass patent or idea, and invented the concept independently. In fact, he began thinking about the concept in 1861, but abandoned it until the mid-1870s. In 1883, Edouard Delamare-Deboutteville and Leon Malandin of France installed an internal combustion engine powered by a tank of city gas on a tricycle. As they tested the vehicle, the tank hose came loose, resulting in an explosion. In 1884, Delamare-Deboutteville and Malandin built and patented a second vehicle. This one consisted of two four-stroke, liquid-fueled engines mounted on an old four-wheeled horse cart. The patent, and presumably the vehicle, contained many innovations, some of which would not be used for decades. However, during the vehicle's first test, the frame broke apart, the vehicle literally shaking itself to pieces, in Malandins own words. No more vehicles were built by the two men. Their venture went completely unnoticed and their patent unexploited. Knowledge of the vehicles and their experiments was obscured until years later.

This site contains a large collection of celebrity wallpapers, movie wallpaper, animal wallpaper (Desktop Wallpapers) for your computer desktop.The terms wallpaper and desktop picture refer to an image used as a background on a computer screen, usually for the desktop of a graphical user interface. Wallpaper is the term used in Microsoft Windows, while the Mac OS calls it a desktop picture (prior to Mac OS X, the term desktop pattern was used to refer to a small pattern that was repeated to fill the screen).Typical categories can include cars, models celebrities, scenery, abstract art, movies, pets, family, symmetry, and the users own photos.