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@ -50,7 +50,7 @@ Also in 1888 probably the **first [video](video.md)** that survived until today
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On December 17 1903 the Wright brothers famously performed the **first controlled flight of a motor airplane** which they built, in North Carolina. In repeated attempts they flew as far as 61 meters over just a few seconds.
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Int 1907 Lee De Forest invented a practically usable **[vacuum tube](vacuum_tube.md)**, an extremely important part usable in electric devices for example as an amplifier or a switch -- this would enable construction of radios, telephones and later even primitive computers. The invention would lead to the [electronic](electronics.md) revolution.
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In 1907 Lee De Forest invented a practically usable **[vacuum tube](vacuum_tube.md)**, an extremely important part usable in electric devices for example as an amplifier or a switch -- this would enable construction of radios, telephones and later even primitive computers. The invention would lead to the [electronic](electronics.md) revolution. Also in 1907 [Belinographe](belinographe.md) was invented, allowing transmission of photographs over telephone lines.
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From 1914 to 1918 there was **[World War I](ww1.md)**.
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