Alexander Stepanovich Popov (Russian: Александр Степанович Попов) (March 4, 1859 - December 31, 1905) was a Russian physicist who publicly demonstrate transmission of radio waves (March 1896) but didn't apply for a patent an apparatus or method for radio. Jump to: navigation, search March 4 is the 63rd day of the year in the Gregorian Calendar (64th in leap years). ... 1859 is a common year starting on Saturday. ... Jump to: navigation, search December 31 is the 365th day of the year (366th in leap years) in the Gregorian Calendar. ... Jump to: navigation, search 1905 was a common year starting on Sunday (see link for calendar). ... A physicist is a scientist trained in physics. ...

Born in the village Turinskiye Rudniki (now Krasnoturinsk, Sverdlovsk Oblast) in the Ural mountains as the son of a priest, he became interested in natural sciences early in his youth. His father ensured that Alexander received a good education at the seminary at Perm, and later studying physics at the St. Petersburg university. After graduation in 1882 he started to work as a laboratory assistant at the university. However due to the bad funding of the university he changed to a teaching job at the Russian Navy's Torpedo School in Kronstadt on Kotlin Island. Sverdlovsk Oblast (Russian: Свердло́вская о́бласть; tr. ... The Ural Mountains (Russian: Ура́льские го́ры = Ура́л) also known simply as the Urals and as the Riphean Mountains in Greco-Roman antiquity, is a mountain range that runs roughly north and south through western Russia. ... Perm (Пермь, pop. ... Seal of Saint Petersburg State University Saint Petersburg State University (Санкт-Петербургский Государственный Университет) one of the oldest Russian educational institutions, established in the city of Saint Petersburg on January 28, 1724 by decree of Peter the Great. ... 1882 was a common year starting on Sunday (see link for calendar). ... 1888 map of Kronstadt bay Kronstadt (Russian: Кронштадт; also Kronshtadt, Cronstadt) is a strongly fortified Russian seaport town, located on Kotlin Island, near the head of the Gulf of Finland, at 59°5930 N and 29°4630 E. It lies 20 miles west of Saint Petersburg, of which... Kotlin (or Kettle; Finn. ...

Beginning in the early 1890s he continued the experiments of Heinrich Hertz. In 1894 he built his first radio receiver, the coherer. Further refined as a lightning detector, he presented it to the Russian Physical and Chemical Society on May 7, 1895 — the day has been celebrated in the Russian Federation as "Radio Day". The paper on his findings was published the same year. In March 1896, he effected transmission of radio waves between different campus buildings in St Petersburg. Upon learning about Guglielmo Marconi's system, he effected ship-to-shore communication over a distance of 6 miles in 1898 and 30 miles in 1899. The 1890s were sometimes referred to as the Mauve Decade, because William Henry Perkins aniline dye allowed the widespread use of that colour in fashion, and also as the Gay Nineties, under the then-current usage of the word gay which referred simply to merriment and frivolity, with no... Heinrich Hertz Heinrich Rudolf Hertz (February 22, 1857 - January 1, 1894), was the German physicist for whom the hertz, the SI unit of frequency, is named. ... 1894 was a common year starting on Monday (see link for calendar). ... Jump to: navigation, search A coherer (or, sometimes, receiver) is an early form of detector in wireless telegraphy. ... Jump to: navigation, search Lightning over Pentagon City in Arlington County, Virginia Cloud to cloud lightning Lightning is a powerful natural electrostatic discharge produced during a thunderstorm. ... Jump to: navigation, search May 7 is the 127th day of the year in the Gregorian Calendar (128th in leap years). ... 1895 was a common year starting on Tuesday (see link for calendar). ... Jump to: navigation, search Guglielmo Marconi Guglielmo Marconi, GCVO (25 April 1874 – 20 July 1937) was an Italian electrical engineer and Nobel laureate, known for the development of a practical wireless telegraphy system commonly known as the radio. Marconi was President of the Accademia dItalia and a member of...

In 1901 Alexander Popov was appointed as professor at the Electrotechnical Institute which now bears his name. In 1905 he was elected as the director of the institute. At the end of the year he became seriously ill, being very uneasy about the suppression of a beginning student movement. He died on December 31 (January 13 in Gregorian calendar) of brain hemorrhage. Jump to: navigation, search 1901 was a common year starting on Tuesday (see link for calendar). ... January 13 is the 13th day of the year in the Gregorian calendar. ... Jump to: navigation, search The Gregorian calendar is the calendar that is used nowadays nearly everywhere in the world. ... A cerebral hemorrhage is a condition in the brain in which a blood vessel leaks. ...

Resources

• Alexander Popov: Russia's Radio Pioneer by James P. Rybak
• Short biographies of Popov