Term
| When was the commercial cylinder made? |
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Definition
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Term
| The first sound recoding was created in 1877 by whom? |
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Definition
| Thomas Edison patented his “talking machine”, a device for duplicating sound that used a hand-cranked grooved cylinder and a needle. |
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Term
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Definition
Marconi
In 1896, Italian inventor Guglielmo Marconi created a “wireless telegram” |
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Term
| In 1903, Lee DeForest (American) invented what? |
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Definition
invented the audion tube, a vacuum tube that improved and amplified wireless signals.
He also saw radio as a means of broadcasting. |
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Term
| The does the "idea of broadcasting" mean? |
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Definition
| transmitting voices and music at great distances to a large number of people. |
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Term
| What was David Sarnoff thinking when he came up with the “Radio Music Box Memo” (1916)? |
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Definition
| Sarnoff wrote of “a plan of development which would make radio a ‘household utility’ in the same sense as the piano or phonograph. The idea is to bring music into the house by wireless…. The receiver can be designed in the form of a simple ‘Radio Music Box’ and arranged for several different wavelengths. |
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Term
| What 4 companies joined together to create RCA (Radio Corporation of America)? |
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Definition
American Maroni, Genereal Electric, American Telephone & Telegraph, and Westinghouse
o It was a government-sanctioned monopoly, but...(teacher turned slide too fast for me to get it all) |
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