John Ambrose Fleming
Sir John Ambrose Fleming FRS (29 November 1849 – 18 April 1945) was an English electrical engineer and physicist. He is known for inventing the first thermionic valve or vacuum tube, the diode, then called the kenotron in 1904. He is also famous for the left hand rule (for electric motors). He was born the eldest of seven children of James Fleming DD (died 1879), a Congregational minister, and his wife, Mary Ann, at Lancaster, Lancashire and baptized on 11 February 1850.
He was a devout Christian and preached on one occasion at St Martin-in-the-Fields in London on the topic of evidence for the resurrection. In 1932, along with Douglas Dewar and Bernard Acworth, he helped establish the Evolution Protest Movement. Having no children, he bequeathed much of his estate to Christian charities, especially those that helped the poor. He was an accomplished photographer and, in addition, he painted watercolours and enjoyed climbing in the Alps.
Read more about John Ambrose Fleming: Early Years, Education and Marriages, Activities and Achievements, Books By Fleming
Famous quotes containing the words john and/or fleming:
“Despite everybody who has been born and has died, the world has just gone on. I mean, look at Napoleon—but we went right on. Look at Harpo Marx—the world went around, it didn’t stop for a second. It’s sad but true. John Kennedy, right?”
—Bob Dylan [Robert Allen Zimmerman] (b. 1941)
“I could not get a rhyme for roman
And was obliged to call him woman.”
—Marjory Fleming (1803–1811)