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jun 2, 1875 - Bell proves that telephones work
Description:
Watson happens to pluck one of the metal reeds that formed Bell's phonoautograph machine. This accidental move showed that a telephone could transmit sounds.
Added to timeline:
Alexander Graham Bell
By
Alicia Gracidas-Guldan
20 Dec 2018
0
0
532
Date:
jun 2, 1875
Now
~ 150 years ago
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