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How did thomas alva Edison contribute to this development in 1920?
Wiki User
∙ 12y ago
He invented the telegraph (which was one of his personal favorite inventions) and the electric bulb system which lasted up to 40 hours.
Wiki User
∙ 12y ago
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Who was the black assistant of Thomas Edison?
Lewis Latimer was Edison's as well as Alexander Graham Bell's Assistant, having drawn up the plans for the telephone that Bell, an audiologist, invented. Latimer also came up with the substance used in the filament of Edison's successful version of the Incandescent Light Bulb and wrote the original manual for electrical distribution, but was barred, in the 1870's through the 1920's until admitted then to the EDISON PIONEERS...... Mr. Latimer was born September 4, 1848 in Chelsea, Massachusetts and died on December 11, 1928 in New York City, New York.
What is the 5th harmonic of 60hz?
1920
Who invented potentiometer?
Mary Hallock-Greenwalt in 1920.
Will 20 amps handle 3500 watts?
No. 20 amps at 120 volts will handle a maximum of 2400 watts. And you should never continuously load a 20 amp 120 volt circuit to no more than 1920 watts.
How many loads can a 20 amp 12 ga wire carry?
A #12 wire can carry 20 amps. Assuming the connected voltage is 120 volts the wattage will be Watts = Amps x Volts. W = 20 x 120 = 2400 watts. The circuit can legally be loaded to 80%. 2400 x 80% = 1920 watts. The maximum amount of loads that can be connected to a 20 amp #12 wire have to be added up individually but stay under 1920 watts.
Who received 57 patents between 1872 and 1920?
You did not say in which country, but the answer is probably Thomas Alva Edison.
When did Thomas Ambler die?
Thomas Ambler died in 1920.
When did Thomas Hassall die?
Thomas Hassall died in 1920.
When was Thomas Sebeok born?
Thomas Sebeok was born in 1920.
When was Thomas Parkinson born?
Thomas Parkinson was born in 1920.
When was Thomas Shadden born?
Thomas Shadden was born in 1920.
When did Thomas Birkett die?
Thomas Birkett died in 1920.
When did Thomas Payment die?
Thomas Payment died in 1920.
When was Thomas Leith born?
Thomas Leith was born in 1920.
When did Thomas Hedge die?
Thomas Hedge died in 1920.
When was Thomas Deane born?
Thomas Deane was born in 1792.
How did Jackie Robinson contribute in the 1920's?
jackie robinson was born in 1919 so the 1920's would have been his childhood, so he didnt contribute much to the 20's.
