Michael Faraday (1791-1867)
British physicist and chemist, founder of electromagnetic field theory
Discovered the phenomenon of electromagnetic induction in 1831.
The law of electrolysis was discovered in 1833.
In 1845, the phenomenon of the deflection of light rotating in a magnetic field (the Faraday effect) was discovered.
Samuel Finley Breese Morse (1791-1872)
American inventor, inventor of the telegraph
In 1837, he developed the earliest electromagnetic telegraph machine. In 1983, the Morse code of pointillism combination was created. Morse spent two years building a 64-kilometer telegraph line from Washington to Baltimore. Notification began on May 24, 1844, opening a new page in the history of human communication.
James Clerk Maxwell (1831-1879)
British physicist and chemist, founder of classical electromagnetic theory
Created and led the British first A dedicated special issue laboratory - the Cavendish Laboratory. He summarized the research results on electromagnetic phenomena before the mid-19th century and established the basic equations of the electromagnetic field, namely Maxwell's equations. From this theory, it can be concluded that electromagnetic processes propagate in space at a certain speed (equivalent to the speed of light), which completely negates the misconception of action at a distance and concludes that the essence of light is electromagnetic waves.
Bell Alexander Graham Bell (1847-1922)
Scientist, inventor of the telephone
On March 10, 1876, a successful call was made over the telegraph line, and his cooperation Readers heard Bell's sound for the first time through a liquid transmitter and a tuned reed receiver. In 1878, he and his collaborators successfully conducted a public experiment on long-distance telephone calls between Boston and New York, which were 300 kilometers apart, and founded the Bell Telephone Company, which promoted the rapid development of the telephone.
Heinrich Rudolf Hertz (1857-1894)
One of the founders of classical dynamics, a German physicist
In 1887, Hertz used his own designed Oscillator, the first experimental confirmation of the existence of electromagnetic waves. The propagation speed in the air is equal to the speed of light, establishing the equality of the basic characteristics of electromagnetic waves and light waves. The phenomenon of photoelectric effect was first discovered. In memory of him, Hertz is used as the unit of oscillation frequency.
Alexander Stepanovich Popov (1859-1906)
Russian physicist, one of the founders of radio communications
In 1894, he made a radio receiver.
In 1895, he published an important paper "The Relationship between Metal Powder and Electric Oscillation".
In 1896, a brief telegram was sent between buildings 250 meters apart.
Guglielmo Marconi (1874-1937)
Italian inventor and founder of radio communications
In 1895, he successfully carried out radio wave transmission Signal experiments. Since 1897, he conducted a series of radio communication experiments to promote the practical application of radio communications. In December 1901, long-distance radio signal transmission was achieved for the first time on both sides of the Atlantic Ocean, ushering in a new era of long-distance radio communications.
Li Qiang Li Qiang (1905-1996)
Chinese radio and antenna expert, one of the pioneers of the broadcasting industry in New China
A native of Changshu, Jiangsu. In 1929, the first domestically produced radio transceiver was produced.
In 1931, he was sent to the Soviet Union, where he wrote the book "Sending Diamond Antenna" and made contributions to the theory of this type of antenna. In 1947, he led the construction of high-power transmitters and directional antennas for radio stations. After the founding of the People's Republic of China, Li Qiang served as director of the General Administration of Radio and Telecommunications of the Ministry of Posts and Telecommunications. In 1950, he served as a director of the International Telecommunication Union.
Meng Zaho Ying (1906-1995)
Chinese experimental physicist, electronics scientist, educator
A native of Leting, Hebei Province, 1995 Graduated from Yenching University in 2008. He received his PhD from the California Institute of Technology in 1936. He has taught at Yenching University, Southwest Associated University and Tsinghua University for more than sixty years, and has made many achievements in talent training, laboratories and teaching materials. He has made important contributions to scientific research in the fields of microwave electronics, spectroscopy, and cathode electronics. Author of "Cathode Electronics".
Feng Bing Quan (1910-1980)
Chinese electronics scientist and educator
A native of Anxin, Hebei Province. Graduated from the Department of Physics of Tsinghua University in 1930. Obtained a doctorate from Harvard University in the United States in 1943. Research on personnel radio electronics has contributed to radio oscillation theory, electroacoustics, and hydroacoustic engineering. He once proposed the "Phase Angle Compensation Principle" and developed a pulse-width modulated AM broadcast transmitter and a radio frequency wave elimination type language. processor. He is the author of "Basics of Electroacoustics", "Radio Transmitting Equipment", etc.
Wang Shi Guang (1915-2003)
A pioneer in the wireless communications and electronics industry of New China
A native of Tianjin. In 1935, he was admitted to the Department of Electrical Engineering of Tsinghua University and actively participated in the anti-Japanese and national salvation movement. From 1940 to 1947, he organized the maintenance, production and technical personnel training of radio stations in the liberated areas, successfully established the Handan Radio Station, and was awarded [Special Meritorious Service]. In 1949, he was responsible for taking over the former Kuomintang's telecommunications enterprises in the Beijing-Tianjin area. In 1963, he became the fourth deputy minister of the Ministry of Machinery Industry.