Instrument-converting-alternating-electric-currents-into-905bd09e-f637-4d07-a64b-bd4f08eb9045
Thumb_instrument-converting-alternating-electric-currents-into-1667d7b5-3058-427d-9d71-5225891fc4a5

Description

S.L., November 7, 1905. 4°, pp. 6 ed una tavola. Sciolto, strappetti senza danno, macchiette di ruggine, timbri di Studio di Ingegneria Industriale, buona copia. RARO. L'INVENZIONE DELLA VALVOLA, LA NASCITA DELL'ELETTRONICA.
" Sir John Ambrose Fleming (November 29, 1849-April 18, 1945), often called a father of modern electronics, is best known for developing the first successful thermionic valve (also called a vacuum tube, a diode, or a Fleming valve) in 1904. His invention was the ancestor of all electronic tubes, a development that gave birth not only to radio communications, but to the entire electronics industry.
The modern vacuum tube, the triode amplifier, was achieved by Lee De Forest in 1906--an "invention that ran afoul of the Marconi Company which owned Fleming's patent." The development of radios, televisions, computers, phonographs, Dictaphones, film projectors, and the cultural and intellectual achievements they created are all a direct result of the vacuum tube. The vacuum tube was a key component of radios and most electronic devices until it was replaced by the transistor in the 1970s. Fleming was the "common thread that linked the work" of Thomas Edison, Gugliemo Marconi, and Lee de Forrest, and Nikola Tesla, who--according to a 1943 U.S. Supreme Court decision--invented the radio.
Fleming showed an early genius for scientific and technical studies. As a student he studied under James Clerk Maxwell at Cambridge, graduating with a first-class-honors degree in chemistry and physics. He was in the top two percent in his class for his B.S. degree. He then earned a doctorate from the University of Cambridge in 1880.4 Dr. Fleming taught at both Cambridge University and the University of Nottingham. He was the first professor and chair of electrical engineering at the University of Nottingham and University College of London, a post that he held for 41 years. Dr. Fleming was an outstanding teacher in the classroom and very successful as a public lecturer on science.
He also worked with both the inventor of the radio, Nobel laureate Guglielmo Marconi, and the inventor of the electric light bulb, Thomas Alva Edison, in developing a variety of inventions. From Edison, Fleming learned about the ability of a vacuum tube to convert alternating current into direct current. From this information he developed his thermionic tube. When working with Marconi, Fleming helped to design the transmitter that Marconi used in his successful 1901 trans-Atlantic broadcast.
In 1904 Fleming designed a vastly improved radio receiver for Marconi.8 Fleming even helped design and build much of the equipment that makes wireless communications possible. For example, he contributed greatly to the development of electrical generator stations and distribution networks, helping to usher in the electronic age by allowing long distance transmission of telephone signals. He even made significant contributions to radar, which was of vital importance in helping the Allies to prevail in World War II.
His many awards include the Hughes Medal in 1910, the Gold Alber Medal in 1921, the Faraday Medal in 1928, the Institute of Radio Engineers medal in 1933, and the highest distinction in the Royal Society of Arts. His most important honor, however, was a knighthood, awarded in 1929.9 In his career, Fleming authored 19 major physics and electronic textbooks and almost 100 scientific articles, many published in leading scientific journals." (https://www.icr.org/article/sir-ambrose-fleming-father-modern-electronics/).

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