William Henry Eccles was a British physicist and a pioneer in the development of radio communication. He was born in Barrow-in-Furness, Lancashire, England. Following graduation from the Royal College of Science, London, in 1898, he became an assistant to Guglielmo Marconi, the Italian radio entrepreneur. In 1901 he received his doctorate from the Royal College of Science.
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- William Henry Eccles was a British physicist and a pioneer in the development of radio communication. He was born in Barrow-in-Furness, Lancashire, England. Following graduation from the Royal College of Science, London, in 1898, he became an assistant to Guglielmo Marconi, the Italian radio entrepreneur. In 1901 he received his doctorate from the Royal College of Science. Eccles was an advocate of Oliver Heaviside's theory that a conducting layer of the upper atmosphere could reflect radio waves around the curvature of the Earth, thus enabling their transmission over long distances. Originally known as the Kennelly–Heaviside layer, this region of the Earth's atmosphere became known as the Ionosphere. In 1912 Eccles suggested that solar radiation was responsible for the observed differences in radio wave propagation during the day and night. He carried out experiments into atmospheric disturbances of radio waves and used wave detectors and amplifiers in his work. Eccles invented the term Diode to describe an evacuated glass tube containing two electrodes; an anode and a cathode. Following World War I Eccles' main interest was in electronic circuit development. In 1918 he worked in collaboration with F. W. Jordan to patent the flip-flop circuit, which became the basis of electronic memory in computers. In 1919, Eccles became vice-chairman of the Imperial Wireless Committee. He helped in the design of the first long wave radio station, and became involved in the early work of the British Broadcasting Company following its establishment in 1922. William Eccles was a Fellow of the Royal Society (FRS). He was President of the Physical Society from 1928 to 1930, and President of the Institution of Electrical Engineers (IEE) in 1926. He died in Oxford.
- William Henry Eccles war ein britischer Physiker, der Pionierarbeit in der Entwicklung der Rundfunkübertragungstechnik leistete. Eccles promovierte am Royal College of Science in London im Jahr 1901 und lehrte anschließend zwischen 1902 und 1916 am South Western Polytechnic in der Hauptstadt. Später wurde er Nachfolger von Silvanus Thompson am City and Guilds Technical College in London, wo er bis 1926 arbeitete. Eccles war ein früher Verfechter der Ideen Heavisides, dass eine obere Schicht innerhalb der Erdatmosphäre in der Lage sei, Radiowellen zu reflektieren. Damit wäre eine Möglichkeit gegeben, Radiowellen über viel weitere Entfernungen zu senden, als es die Krümmung der Erdoberfläche zuließe. Eccles schlug auch 1912 vor, dass die Solarstrahlung für die unterschiedlichen Ausbreitungsgeschwindigkeiten der Wellen während der Nacht und am Tag verantwortlich ist. Er experimentierte mit Detektoren und Radioverstärkern und untersuchte die atmosphärischen Störungen des Radioempfangs. Gemeinsam mit F. W. Jordan auf der Suche nach Zählschaltungen, gelang 1919 mit Radioröhren die ursprünglich nach beiden als Eccles-Jordan-Schaltung benannte Anordnung von gegenseitig rückgekoppelten Verstärkern. (Radio Review Dez. 1919 S. 143 ff) Die Bezeichnung Flipflop gibt lautmalerisch die Geräusche wieder, die an in einem der Ausgänge liegenden Lautsprecher bei den Kippvorgängen hervorgerufen werden. Die Schaltung hat grundlegende Bedeutung in der Computertechnik. Eccles wurde 1921 als Mitglied in die Royal Society aufgenommen.
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- William Henry Eccles was a British physicist and a pioneer in the development of radio communication. He was born in Barrow-in-Furness, Lancashire, England. Following graduation from the Royal College of Science, London, in 1898, he became an assistant to Guglielmo Marconi, the Italian radio entrepreneur. In 1901 he received his doctorate from the Royal College of Science.
- William Henry Eccles war ein britischer Physiker, der Pionierarbeit in der Entwicklung der Rundfunkübertragungstechnik leistete. Eccles promovierte am Royal College of Science in London im Jahr 1901 und lehrte anschließend zwischen 1902 und 1916 am South Western Polytechnic in der Hauptstadt. Später wurde er Nachfolger von Silvanus Thompson am City and Guilds Technical College in London, wo er bis 1926 arbeitete.
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- William Eccles
- William Henry Eccles
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