Bolalarda nevroz kasalliklari va ularni oldini olish

enough to transport people and cargo were first

devised in the late 18th century. Nicolas-Joseph

Cugnot demonstrated his fardier à vapeur

("steam dray"), an experimental steam-driven

artillery tractor, in 1770 and 1771. As Cugnot's

design proved to be impractical, his invention

was not developed in his native France. The

centre of innovation shifted to Great Britain.

EARLY AUTOMOBILES

Cugnot's steam wagon, the second (1771) version

19th Century

Among other efforts, in 1815, a professor at Prague Polytechnic, Josef Bozek, built an oil-fired steam car. Walter Hancock, builder and operator of London steam buses, in 1838 built a four-seat steam phaeton.

In 1867, Canadian jeweller Henry Seth Taylor demonstrated his 4-wheeled "steam buggy" at the Stanstead Fair in Stanstead, Quebec, and again the following year. The basis of the buggy, which he began building in 1865, was a high-wheeled carriage with bracing to support a two-cylinder steam engine mounted on the floor.

What some people define as the first "real" automobile was produced by French Amédée Bollée in 1873, who built self-propelled steam road vehicles to transport groups of passengers.

The American George B. Selden filed for a patent on May 8, 1879. His application included not only the engine but its use in a 4-wheeled car. Selden filed a series of amendments to his application which stretched out the legal process, resulting in a delay of 16 years before the US 549160[8] was granted on November 5, 1895.

Karl Benz, the inventor of numerous car-related technologies, received a German patent in 1886.

The four-stroke petrol (gasoline) internal combustion engine that constitutes the most prevalent form of modern automotive propulsion is a creation of Nikolaus Otto. The similar four-stroke diesel engine was invented by Rudolf Diesel. The hydrogen fuel cell, one of the technologies hailed as a replacement for gasoline as an energy source for cars, was discovered in principle by Christian Friedrich Schönbein in 1838.[citation needed] The

battery electric car owes its

beginnings to Ányos Jedlik,

one of the inventors of the

electric motor, and Gaston

Planté, who invented the

lead-acid battery in 1859.