John Ambrose Fleming (nonfiction): Difference between revisions
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* [[Frederick Guthrie (nonfiction)]] - Doctoral advisor | * [[Frederick Guthrie (nonfiction)]] - Doctoral advisor | ||
* [[Maskelyne-Marconi affair (nonfiction)]] | |||
* [[Physicist (nonfiction)]] | * [[Physicist (nonfiction)]] | ||
* [[Balthasar van der Pol (nonfiction)]] - Notable student | * [[Balthasar van der Pol (nonfiction)]] - Notable student | ||
Revision as of 21:01, 3 December 2018
Sir John Ambrose Fleming FRS (29 November 1849 – 18 April 1945) was a British electrical engineer and physicist.
He is known for the Fleming valve, a thermionic valve or vacuum tube which he invented in 1904 as a detector for early radio receivers used in electromagnetic wireless telegraphy. It was the first practical vacuum tube and the first thermionic diode, a vacuum tube whose purpose is to conduct current in one direction and block current flowing in the opposite direction.
He is also famous for the left hand rule (for electric motors).
On 11 June 1887 he married Clara Ripley (1856/7–1917), daughter of Walter Freake Pratt, a solicitor from Bath. On 27 July 1928 he married the popular young singer Olive May Franks (b. 1898/9), of Bristol, daughter of George Franks, a Cardiff businessman.
In the News
Crime-fighter John Ambrose Fleming delivers lecture from within Fleming tube.
Fiction cross-reference
Nonfiction cross-reference
- Harold Barlow (nonfiction) - Doctoral student
- Fleming valve (nonfiction)
- Frederick Guthrie (nonfiction) - Doctoral advisor
- Maskelyne-Marconi affair (nonfiction)
- Physicist (nonfiction)
- Balthasar van der Pol (nonfiction) - Notable student
External links:
- John Ambrose Fleming @ Wikipedia