Alexander Graham Bell Research Paper

Alexander Graham Bell was born on March 3, 1847, in Edinburgh, Scotland, and was the son and grandson of authorities in elocution. He is commonly credited as the inventor of the first practical telephone.The invention of the telephone had a great impact towards society and developed the idea of communication. The whole point of the telephone is to instantly connect with others around the world at great distances. The telephone has made business more efficient, saved money from having to travel back and forth from distant places. It has led to instant communications around the world and even led to the Internet.Telephones have become more and more advanced, as well they have become very popular. This inspired him to develop his electrical speed

Part one, the transmitter and part two the receiver. The Transmitter of a telephone, lies behind the mouthpiece of the phone. Like the human ear, the transmitter has an 14 eardrum. The eardrum of the telephone is a thin, round metal disk called a diaphragm. When a person talks into the telephone, the sound waves strike the diaphragm and makes it vibrate. Behind the diaphragm lies a small cup filled with tiny grains of carbon. The diaphragm presses against these carbon grains. Low service electric current travels through the grains. This current, comes from batteries at the telephone company. A loud sound causes the sound waves to push hard on the diaphragm. In turn, the diaphragm presses the grains tightly together. This action makes it easier for the electric current to travel through, and a large amount of electricity flows through the grains. When the sound is soft, the sound waves push lightly on the diaphragm. In turn, the diaphragm puts only a slight pressure on the carbon grains. The grains are pressed together loosely. The Receiver is known as an "electric mouth." Like a human voice, it has "vocal cords." The vocal cords of the receiver are a diaphragm. Two magnets located at the edge of the diaphragm cause it to vibrate. One of the magnets is a permanent magnet that holds the diaphragm close to it.The other magnet is an electromagnet. It consists of a piece of iron with a coil of wire wound around it. When an electric current passes through the coil, the iron core becomes