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The Telephone: Past to present
Transcript of The Telephone: Past to present
by, Karel Koon Inventor's Impact on the World and Its People On June 2, 1875, Alexander Graham Bell while experimenting with his technique called "harmonic telegraph" discovered he could hear sound over a wire. The sound was that of a twanging clock spring.
Bell's greatest success was achieved on March 10, 1876, marked not only the birth of the telephone but the death of the multiple telegraph as well. The communications potential contained in his demonstration of being able to "talk with electricity" far outweighed anything that simply increasing the capability of a dot-and-dash system could imply. First Sounds Alexander Graham Bell's notebook entry of March 10, 1876, describes his successful experiments with the telephone. Speaking through the telephone to his assistant, Thomas A. Watson, in the next room, Bell muttered his famous first words, "Mr. Watson---come here----I want to see you." The First Voice In the first telephone, Bell used a wooden base and a metal mouthpiece. The mouthpiece would work for talking and listening. Now modern cell phones are made out of plastic, lead, a rare mineral called tantalum, and some copper, nickel, and other elements. The battery of the cell phone is the most dangerous part because it has lead and other harmful substances. Materials Used in Making the Telephone The inventor of the telephone was Alexander Graham Bell. Born in Edinburgh, Scotland, Bell had an intense knowledge of sound, which inspired him to make the telephone. He invented the photophone,harmonic telegraph,metal detector, and some man-flying planes.He also improved Thomas Edison's graphophone. Evolution of the Telegraph and the Telephone The History of the telephone is very interesting. The telegraph and telephone are both wire-based electrical systems, and Alexander Graham Bell's success with the telephone came as a direct result of his attempts to improve the telegraph.
When Bell began experimenting with electrical signals, the telegraph had been an established means of communication for some 30 years. Although a highly successful system, the telegraph, with its dot-and-dash Morse code, was basically limited to receiving and sending one message at a time. Bell's extensive knowledge of the nature of sound and his understanding of music enabled him to conjecture the possibility of transmitting multiple messages over the same wire at the same time. Although the idea of a multiple telegraph had been in existence for some time, Bell offered his own musical or harmonic approach as a possible practical solution. His "harmonic telegraph" was based on the principle that several notes could be sent simultaneously along the same wire if the notes or signals differed in pitch. Modern-Day Phones The modern-day phone is very different then Bell's first phone. The cell phone has combined two different inventions, the telephone (Alexander Graham Bell) and the radio (Nikola Tesla). Cell phones work as two-way radios. They send electromagnetic microwaves from base station to base station. The waves are sent through antennas; this is called wireless communication.
There are different kinds of phones. A flip phone flips open, and is best for calling. A bar phone is shaped like a candy bar, and the keys and screen are on one face. A slate phone is a phone that has almost no buttons, and uses a touchscreen. A slider phone slides on rails. It can slide out number keys or a mini keyboard, but some do both. A swivel spins on an axle.
The latest cell phone is the smart phone. These phones can be used for email, browsing the internet, playing music and games, and many other functions that computers can perform. This is because they basically are small computers. How the Telephone Changed the World The telephone changed the world by making communication easier for people in different parts of the world. Imagine not being able to talk to a friend in another state or country. If telephones aren't there, talking with your friend in another state would be impossible. Also, writing letters can take a long time, and could make you miss something that is going on in another country. Letters also don't have the same affect because you can't hear the other person's voice.
"The universal use of the telephone will, of course, be viewed with disapprobation by the sound-producing part of the community, just as the introduction of labor-saving machines was met by the hostility of the laboring classes. No man who can sit in his own study with his telephone by his side, and thus listen to the performance of an opera at the Academy, will care to go to Fourteenth street and to spend the evening in a hot and crowded building. In like manner, many persons will prefer to hear lectures and sermons in the comfort and privacy of their own rooms, rather than to go to the church or lecture-rooms. The rural visitor who spends a Sunday in town, and reads a printed notice in the office of his hotel to the effect that “Talmage’s sermons, drawn from the wood, can be heard at 11 o’clock in the telephonic room,” will, of course, give up his original intention of risking a journey to Brooklyn, and will listen to the trembling telephone as its sympathetic brass vibrates to the tones of the resonant Brooklyn orator. Thus the telephone, by bringing music and ministers into every home, will empty the concert halls and the churches, and the time may come when a future Von Bulow playing a solitary piano in his private room, and a future Talmage preaching in his private gymnasium, may be heard in every well-furnished house on the American continent." Explains a reporter from the Baltimore Bulletin (Baltimore, Maryland) on April 8, 1876. Alexander Graham Bell impacted the world with the telephone. Without him, we wouldn't be able to contact others without meeting them somewhere. Not only did he invent the telephone, but he also invented the photo phone and the wireless phone. Other than phones, he invented the multiple telegraph, hydro-airplane, photo-sensitive selenium cell, and new techniques for teaching the deaf to speak. Bell also improved Thomas Edison's phonograph. Bell and his father-in-law, Gardiner Hubbard, along with others founded the National Geographic Society (N.G.S) in 1888; Bell was president of the society from 1898-1903. I believe Alexander Graham Bell made a huge impact on our lives.
Today we are able to call friends from Europe and Australia. Yes, it may cost more, but we know if we need to talk to them, we can. Sources: Google