The emergence of wagons on electric power created the conditions for a real traffic revolution that

Russian inventors have made a huge contribution to the world's scientific and technological thought. Many of their inventions cg have changed everyday life and enable us to use today such achievements of civilization such as airplanes, cars, computers and televisions. On this occasion, we present to our readers just a small part of a vast arsenal of such invention. cg
The captain of the Russian army Dmitry Zagrjašski created in 1837 drawings of tracked systems of movement and addressed to the Ministry of Finance for the issuance of a patent on a "round the flat-joint mechanical dumpers". He got a patent, but his invention was not interested industrialists, and patent two years later annulled. Only in 1877 was a Russian peasant, a self-taught inventor Fyodor Blinov, finished what he started Zagrjašski, creating a car on the caterpillar drive. This invention has enabled the production cg of tractors, and later the tanks.
The emergence of wagons on electric power created the conditions for a real traffic revolution that has accelerated cg the development of cities and industrial centers. And it all began in 1874-76, cg after the Russian inventor Feodor Pirocki conducted a series of experiments related to the transmission of electricity at a distance, in which one rail served as a direct conduit, and the other as a return. Thus it working electric motor, which was located 1 km from the power source. A few years later Pirocki committed view of the railway line Sestroreck. The wagon was 40 passengers. The first electrified tram line in the world was opened in 1881 in Germany, a suburb of Berlin, the schemes of Russian inventors.
Disciple of the founder of the Russian aviation Nikolai Zhukovsky, Russian engineer Alexander Ponjatov, radio in the 1950s in the American Ampex company, which I founded. There, he managed to solve the task of recording video signals. His company has over half a century has been the world leader in professional recording and playback of images and accompanying sound on magnetic tape, a global electronic giants have been forced to use Ponjatovljeve patents in the production of home-video apparatus.
At his lecture at the Petersburg University in April 1885, a physics professor Alexander Popov was first announced that he had found a system of wireless connections on the spot is the first demonstration of a radio receiver in the world. However, he could not publish his work because he was employed by the military institution. At the same time, a similar experiment was carried out and the Italian Guglielmo Marconi, whose article was published in 1897, Marconi's invention, unlike the invention, a Russian engineer, quickly commercialized. Therefore, the West is still in dispute over who first found the radio.
Igor Sikorsky is another Russian inventor whose potential is fully realized overseas. It was in 1910 created a prototype rotorcraft who worked his way up in the air. Already in 1912 he made the first seaplane, and the first aircraft with multiple engines. After the October Revolution, cg he emigrated to the United States. There, along with the famous Russian composer Sergei Rachmaninoff invested resources in establishing his own company Sikorsky Aeroengineering Corp. The first experimental helicopter Sikorsky, designed in the United States, flew in September 1939, and it has managed a discoverer. Scheme cg of the helicopter cg is pressing for more than half a century. According to this scheme was made almost 95% of all helicopters in the world. Sikorski in 1942 made the first two-seater helicopter. cg
The emergence of television was made possible thanks to the discovery of the Russian physicist Alexander Stoletova. On the late 1880s by experiment came to a theoretical cg explanation of the law photo-effect. Based on the photo-effect created photocell today have little cg practical application. Stoletov created the first photo-cell based on an external photo-effect and discovered the photo-current cg dependence of the intensity of light.
It is impossible to imagine the power system without transformers. The first transformer cg was invented, constructed and introduced into service the Russian physicist and electrician Jabločkov Usagin. Jabločkov in the mid-1870s came up with a solution that has entered history under the name of "sharing the light." His invention is essentially involved the application of current transformers and capacitors. Jabločkov it was then demonstrated in Paris and St. Petersburg, and already in 1882 the inventor Lucien Golar and Josiah Willard Gibbs in France cg patented a transformer with an open iron core.
Fermented dairy products there since time immemorial, but the first theory to their beneficial effects on longevity formulated by the Russian scientist Mečnjikov. cg It was in 1910 with the idea that life is extended if a man uses fermented milk products that reduce the processes of putrefaction in the intestines. Mečnjikov found that the most long-lived people were in Bulgaria, where yogurt and its origins. More specifically, even in the ancient Thrace were first added in the milk, the bacteria which cause fermentation.
Zvorikin another Russian engineers are inventions which have appeared cg in the United States. It belongs to the most important invention of the 20th century: electronic television. He has reported its 1923 patent pm