At the height of the Cold War, there is a race between the Eastern and Western blocs - economic, military, ideological and, above all, technological. At that time, intensive scientific, engineering and inventive activity was boiling in Bulgaria,..
On May 7, 1895, Russian physicist Alexander Popov showed for the first time to the Russian Physical Society in St. Petersburg his apparatus for transmitting and receiving electrical oscillations from distances without a wire. In 1899, Popov connected to..