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Who constructed the prototype of today's television - a telectroscope ?

John Logie Baird of England

Jan Szczepanik from Poland

Philo Farnsworth from the USA

the Lumiere brothers from France

Jan Szczepanik was a Polish inventor, with several hundred patents and over 50 discoveries . Some of his concepts helped the future evolution of TV broadcasting, such as the telectroscope (an apparatus for distant reproduction of images and sound using electricity) or the wireless telegraph, which greatly affected the development of telecommunications.

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Chris Rongione wikipedia → Jan Szczepanik

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Answers by country

Republic of Ireland

10%

90%

0%

0%

10

the Netherlands

0%

70%

10%

20%

10

the United States

8%

68%

20%

2%

45

Poland

13%

64%

11%

10%

2594

the United Kingdom

20%

60%

6%

13%

45

Austria

8%

56%

13%

21%

23

Germany

12%

55%

18%

12%

110

Switzerland

0%

50%

18%

31%

16

Greece

10%

50%

10%

30%

10

Australia

23%

46%

15%

15%

13

India

33%

28%

21%

10%

84

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What material is computer's processor made of?

single crystal ruby

single crystal silicon

silicon polycrystal

Which type of transmission uses the shortest waves?

Which Roman tradition did Septimius Severus break?

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there was a legion in Rome during his reign

he disassembled Senate

he didn't broke any tradition