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CBR runs down the key relevant points in time for the telephone. Privacy Policy. Joao Lima. Reis was a year-old science teacher when he began work on the telephone in His essential idea came from a paper by a French investigator named Bourseul. In Bourseul had explained how to transmit speech electrically.
He wrote:. Only one part of Bourseul's idea was shaky. To send sound, the first diaphragm shouldn't make or break contact. It should vary the flow of electricity to the second diaphragm continuously. Reis used Bourseul's term, "make or break," but his diaphragm actually drove a thin rod to varying depths in an electric coil. He didn't make and or break the current. He varied it continuously. Bell faced the same problem when he began work on his telephone a decade later.
Bell got that idea from another American inventor, Elisha Gray. The couple married on July 11, They went on to have four children, including two sons who died as infants. In , Bell started working on the harmonic telegraph — a device that allowed multiple messages to be transmitted over a wire at the same time. While trying to perfect this technology, which was backed by a group of investors, Bell became preoccupied with finding a way to transmit human voice over wires.
By , Bell, with the help of his partner Thomas Watson, had come up with a simple receiver that could turn electricity into sound. On March 7, , Bell was granted his telephone patent. Watson, come here. I want you. In , the U. In addition to the telephone, Bell worked on hundreds of projects throughout his career and received patents in various fields. Some of his other notable inventions were:. In , Bell was awarded the French Volta Prize, and with the money, he founded a facility devoted to scientific discovery, the Volta Laboratory in Washington, D.
Bell invented numerous techniques to help teach speech to the deaf and even worked with well-known author and activist Helen Keller. He also helped launch Science magazine , and from to served as president of the National Geographic Society. In , Bell was given the controversial title of honorary president at the Second International Congress of Eugenics. Later in his life, Bell focused on aviation and hydrofoil inventions.
Some famous quotes attributed to Bell include:. As with many innovations, the idea for the telephone came along far sooner than it was brought to reality. While Italian innovator Antonio Meucci pictured at left is credited with inventing the first basic phone in , and Frenchman Charles Bourseul devised a phone in , Alexander Graham Bell won the first U.
Bell began his research in and had financial backers who gave him the best business plan for bringing it to market. In , the first telephone line was constructed, the first switchboard was created and the first telephone exchange was in operation. Three years later, almost 49, telephones were in use. At one point in time, Bell System employees purposely denigrated the U. In the transcontinental telephone line began operating. Attorney General. During World War I, the government nationalized telephone and telegraph lines in the United States from June to July , when, after a joint resolution of Congress, President Wilson issued an order putting them under the direction of the U.
Post Office.
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