Date in year · 1904 · The 1900s
November 16, 1904
On November 16, 1904, english engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
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1904
1900s
Featured · November 16, 1904
English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
Sir John Ambrose Fleming was a British electrical engineer and physicist. He is known for inventing the vacuum tube radio transmitter—with which the first transatlantic radio transmission was made—and establishing the right-hand rule used in physics.
Around 1904
The year in brief
1904 (MCMIV) was a leap year starting on Friday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1904th year of the Common Era (CE) and Anno Domini (AD) designations, the 904th year of the 2nd millennium, the 4th year of the 20th…
What happened
On November 16, 1904
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1904 English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube). British electrical engineer and physicist (1849–1945)
Sir John Ambrose Fleming was a British electrical engineer and physicist. He is known for inventing the vacuum tube radio transmitter—with which the first transatlantic radio transmission was made—and establishing the right-hand rule used in physics.
Elsewhere that year
Other moments from 1904
- April 4 Two Ms ~7.1 earthquakes, among the largest in Europe, strike Bulgaria, killing over 200 people and causing destruction.
- April 8 The French Third Republic and the United Kingdom of Great Britain and Ireland sign the Entente cordiale.
- August 10 Russo-Japanese War: The Battle of the Yellow Sea between the Russian and Japanese battleship fleets takes place.
- August 23 The automobile tire chain is patented.
- August 25 Russo-Japanese War: The Battle of Liaoyang begins.
- December 3 The Jovian moon Himalia is discovered by Charles Dillon Perrine at California's Lick Observatory.
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