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Electricity and the telephone Before the creation of the telephone bell would discuss the idea of multiple messages through the telegraph. His father in law, gardiner greene hubbard, finacially supported bell. Bell and his co-owner watson finally in june 1875, they were able to transmit speech electrically using the modified telegraph.
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Creation of Telephone Alexander Graham Bell was the creator of the telephone on March 10, 1876. It was used as a means of a quicker communication rather than sending a letter and waiting much longer.
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patent of the telephone Bell first patented the telephone. He wanted to improve the telegraph. Instead of dots and dashes he decided he wanted to transmit multiple sounds and messages over the same wire at the same time. The patent number was 174,465.
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Improvements Soon after bells invention takes off thomas edison would come to improve on his idea. With improvements on the switchboard and carbon microphone.
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New company In 1877 bell created a company out his telephone invention call, Bell telephone company. (now known as AT&T)
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phones in homes Bells phone company, AT&T, released their product to homes throughout america. Reaching from New York to Chicago.
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because the 2nd patent expired there were many new telephone companies being made. Bell was now not the only person who could create and sell his product.
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transcontinnental President Theodore Vail wanted to build a trascontinental telephone line because it was one of his greatest goals. It took 7 years almost, started 1908, to finally finish and turn on the telephone line. There was a great celebration in san fransisco and new york.
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across the world On January 7, 1927, commercial telephone service (using radio) began between New York and London. People could now speak throughout the world.
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The first video phone call was made through an electro-mechanic AT&T unit. It went from washington D.C, to new york city. It was made by herbert hoover.
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numbers Because so many people now had phones in their house holds people were assigned numbers so that each indivisual could contact a specific person without calling 50 other people.
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<a href='http://http://www.greatachievements.org/?id=3625' >ringer and head set> AT&T created the model 500 telephone, it combines a ringer and a headset. You could control the volume of the rotary dial phone.
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<a href='http://http://www.greatachievements.org/?id=3625' >long distance<long distance> people could now connect all throughout america. Someone from new jersey could call someone from san diego without an operator present on the line to connect the people.
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The first open available push button telephone by western electric/ Bell systems. They opened in the towns of carnagie and greensburg, Pennsylvania.
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The first commercial satellite, early bird, was sent into space and used as a means of telecommunication between different countries.
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emergency call The first emergency call was made on february 16,1968. This made the injury rate and death rate decrease because people could get ahold of a hospital quicker.
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A motorolla employee named Martin Cooper called joel engle, the head of the bell labs, from a hand held device. Testing the success of calling from a non connected device.
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public tests the public tests a new cell phone system in chicago with there being more than 2000 customer tests. Testing with a few commercial towers near.
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A set of switches activated by a series of pulse signals was developed in 1900 called the rotary dial. This made it more efficient to call quicker and it helped the idea of an area code.
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Over 200 million people were now using cell phones and connecting throughout the world. Even now they are improving on inventions and becoming a huge part of society.
