Back ألكساندر بوبوف Arabic الكساندر بوبوف ARZ Aleksandr Popov Azerbaijani الکساندر استپانویچ پاپوف AZB Аляксандр Сцяпанавіч Папоў Byelorussian Александър Попов (физик) Bulgarian Aleksandr Stepànovitx Popov Catalan Alexandr Stěpanovič Popov Czech Попов Александр Степанович CV Aleksandr Popov (fysiker) Danish
Alexander Popov | |
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| Александр Попов | |
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| Born | Alexander Stepanovich Popov 16 March 1859 Turyinskiye Rudniki, Perm Governorate, Russian Empire |
| Died | 13 January 1906 (aged 46) St. Petersburg, Russian Empire |
| Known for | Radio |
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Alexander Stepanovich Popov (sometimes spelled Popoff; Russian: Александр Степанович Попов; March 16 [O.S. March 4] 1859 – January 13 [O.S. December 31, 1905] 1906) was a Russian physicist who was one of the first people to invent a radio receiving device.[1][2][3]
Popov's work as a teacher at a Russian naval school led him to explore high-frequency electrical phenomena. On 7 May 1895, he presented a paper on a wireless lightning detector he had built that worked via using a coherer to detect radio noise from lightning strikes. This day is celebrated today in Russia as Radio Day. In a 24 March 1896 demonstration, he transmitted radio signals 250 meters between different campus buildings in St. Petersburg. His work was based on that of another physicist, Oliver Lodge, and contemporaneous with the work of Guglielmo Marconi.
- ^ Smith-Rose, Reginald Leslie (2013). "Alexandr Popov". Encyclopædia Britannica Online. Encyclopædia Britannica, Inc. Retrieved 6 November 2013.
- ^ McKenna, Joe (2007). "Aleksandr Popov's Contributions to Wireless Communication". IEEE Engineering Hall of Fame. Institute of Electrical and Electronics Engineers. Archived from the original on 10 November 2013. Retrieved 6 November 2013.
- ^ "Did Alexandr Popov invent radio?" (PDF). NSA Technical Journal. 5 (1). US: National Security Agency: 35–41. January 1960. Archived from the original (PDF) on 10 November 2013. Retrieved 6 November 2013. declassified 8 January 2008