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Miloslav Ciz 2024-06-08 16:41:14 +02:00
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@ -54,6 +54,8 @@ Around 1915 [Albert Einstein](einstein.md), a German physicist, completed his **
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.
In 1923 the research of mainly Edwin Hubble leads to concluding there exist other galaxies in the Universe besides our Milky Way, vastly expanding the size of known Universe.
In 1924 about 50% of US households own a car.
October 22 1925 has seen the invention of **[transistor](transistor.md)** by Julius Lilienfeld (Austria-Hungary), a component that would replace vacuum tubes thanks to its better properties, and which would become probably the most essential part of computers. At the time the invention didn't see much attention, it would only become relevant decades later.