Alexander Graham Bell invented telephone in the year 1895
2007-11-15 11:14:05
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answer #1
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answered by Anonymous
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By 1937, telephones were well into use. Ask who really invented the telephone, and you may get the name of a German, Philipp Reis, not Alexander Graham Bell. The common wisdom is that Reis's telephone was only marginal, while Bell's phone really worked. Now Lewis Coe rethinks the priority question in his book, The Telephone and its Several Inventors. Reis was a 26-year-old science teacher when he began work on the telephone in 1860. His essential idea came from a paper by a French investigator named Bourseul. In 1854 Bourseul had explained how to transmit speech electrically. He wrote: Speak against one diaphragm and let each vibration "make or break" the electric contact. The electric pulsations thereby produced will set the other diaphragm working, and [it then reproduces] the transmitted sound. 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. First, he used a diaphragm-driven needle, entering a water/acid solution, to create a continuously variable resistance and a smoothly varying electrical current. Bell got that idea from another American inventor, Elisha Gray. Of course evaporation and immobility both make a liquid pool impractical. Bell soon gave it up in favor of a system closer to Reis's electromagnet. Still, it's clear that Gray's variable resistance pool had pointed the way for Bell. And so we wonder, was Bell also influenced by Reis's invention? Reis died two years before Bell received his patent. He was only 40, and he never did get around to seeking a patent for his device. Reis's phones were tricky. The diaphragm was too delicate. A German company produced them with inconsistent results. Some worked well. Some transmitted only static. Reis's phones were demonstrated all over Europe. One was demonstrated in Scotland while Bell was back there visiting his father. We don't know if Bell saw it. However, he could hardly have been unaware of Reis's work. Still, we don't want to deny Bell's brilliance. He produced a robust and viable telephone, and he had the force of personality to sell it to a skeptical public. But to do that, he did what all inventors do. He built on the combined wisdom of others -- just as Reis had built on the work of Bourseul before him.
2016-05-23 08:06:31
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answer #2
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answered by diann 3
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In 1876, at the age of 29, Alexander Graham Bell invented the telephone.
2007-11-15 11:15:41
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answer #3
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answered by Lola 4
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Alexander Graham Bell, 1876
2007-11-15 11:13:36
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answer #4
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answered by heather 2
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Alexander Graham Bell, 1876
2007-11-15 11:13:17
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answer #5
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answered by Anonymous
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If someone asks who is credited with inventing the telephone, you can explain the controversy that still surrounds this question. The answer is Bell, but be sure to mention Meucci and Gray, because they played important roles in its development.
Alexander Graham Bell was the first one to patent the invention of the telephone in 1876
2007-11-15 11:14:55
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answer #6
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answered by Frosty 7
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Alexander Graham Bell in 1876
2007-11-15 11:14:13
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answer #7
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answered by xo cAnDii ♥ 5
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In 1876, Alexander Graham Bell.
2007-11-15 11:13:57
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answer #8
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answered by Sarah K 2
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Alexander Graham Bell invented the telephone in 1876. The first words he spoke on his telephone were, "Watson, come inside. I need you." Watson was his assistant's name. In Salem Massachusetts
Some people said he stole the idea
In 1831, Englishman Michael Faraday (1791-1867) proved that vibrations of metal could be converted to electrical impulses. This was the technological basis of the telephone, but no one actually used this system to transmit sound until 1861. In that year, Johann Philip Reis (1834-1874) in Germany is said to have built a simple apparatus that changed sound to electricity and back again to sound. A crude device, it was incapable of transmitting most frequencies, and it was never fully developed.
2007-11-15 11:14:17
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answer #9
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answered by Anonymous
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Alexander Graham Bell Invented it in 1876!
2007-11-15 11:13:36
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answer #10
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answered by !Chubby-Chicken! 2
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