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For a few years in the late 1800s, acoustic telephones were marketed commercially as a competitor to the electrical telephone. When the Bell telephone patents expired and many new telephone manufacturers began competing, acoustic telephone makers quickly went out of business. Their maximum range was very limited. [2]
Johanna (Hanna) Hammarström was a Swedish inventor who was born on 4 September 1829 and died on 27 November 1914. Although telephones had already been invented, no one in Sweden could manufacture the copper wires needed to function telephones.
In January 1878, the Boston Telephone Dispatch Company had started hiring boys as telephone operators, starting with George Willard Croy. [5] Boys (reportedly including Nutt's husband [2]) had been very successful as telegraphy operators, but their attitude (lack of patience) and behavior (pranks and cursing) were unacceptable for live phone contact, [6] so the company began hiring women ...
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up in 1982 and replaced by a system of competitors.
19 February 1880: The photophone, also called a radiophone, is invented jointly by Alexander Graham Bell and Charles Sumner Tainter at Bell's Volta Laboratory. [18] [19] The device allowed for the transmission of sound on a beam of light. 20 March 1880: National Bell Telephone merges with others to form the American Bell Telephone Company.
As phone lines became more popular—between 1942 and 1962, the number of phones in the U.S. grew 230% to 76 million—telephone companies realized they would run out of phone numbers.
The internals of the Princess were reduced in size the same year, allowing a small, quiet bell ringer to be placed to the left of the touch-tone dial. In the mid-1970s, AT&T introduced modular connectors for the line cord and handset cords, requiring the RJ11 standard home telephone jack.
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.