H. J. Round
British inventor (1881-1966) · United Kingdom · On the map · Scientists · Died at 85
Captain Henry Joseph Round was an English engineer and one of the early pioneers of radio. He was the first to report the observation of electroluminescence from a solid state diode, leading to the discovery of the light-emitting diode. He was a personal assistant to Guglielmo Marconi.
H. J. Round is read about 15 times a day, in 6 languages.
A typical day, 30 days to 22 June 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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About this person
Country
United Kingdom
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1881 to 1966 · aged 85
