In 1876 Alexander Graham Bell, an American engineer, invented telephone. - презентация

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2 In 1876 Alexander Graham Bell, an American engineer, invented telephone.

3 In 1908 James M. Spangler from the USA built the first vacuum cleaner.

4 Karl Benz produced the worlds first petrol driven motorcar in Germany in The first Russias automobile was designed by P.A. Frez and E.A. Yakovlev. By May 1896 the car had been built.

5 John Logie Baird from Scotland invented television in Intended for transformation of radio signals of the image and a soundtrack of programs of a television announcement to the image and a sound.

6 Wilbur and Orville Wright built the first airplane in 1903(USA).

7 In 1981 Bill Gates (USA) created Microsoft-DOS (Disk Operating System). It is based in 1975 in Albuquerque (New Mexico) by programmers Bill Gates and the Floor Allen. Microsoft – the worlds largest firm on working out of the software with a sales volume following the results of 2000 in 22,9 billion dollars and net profit in 9,42 billion dollars.

8 Telescopes share on gamma telescopes, x-ray, ultra-violet, optical, infra-red, and radio telescopes. There are three types of optical telescopes: refractors (lens), refractors (mirror) and combined mirror-lens systems. The first astronomical supervision by means of telescopes (an optical refractor) are spent to one thousand six hundred ninth G. Galileem.

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