What did the telephone do or say?

Answer 1

The first telephone is used as what is the use of today. But today's telephone are more and more useful because for example, you can connect a local virtual number to a primary number to create presence in any city of your choice.

Answer 2

The first telephone was made with the knowledge that sound gave off waves due to vibrations, like the ripples in water. These sound waves were copied over onto carbon grains, which an electric current traveled through to make the grains vibrate. However, the different patterns of the grains altered the resistance of the grains against the electric flow. In this way the sound made more or less current flow in the circuit. These currents were in proportion to the sound waves that first entered. At the other end was a coil of wire within a magnet attached to a diaphragm. The variations in current caused the wire to move in the magnetic field. These vibrations move air, and that reproduced the sound at the other end!

Answer 3

It speed up the communication. It created a new channel for long distance communication, instead of letters which requires long time to deliver and may become lost.

Answer 4

it changes because it was harder to comunicate without telephones because you would be not in touch with a person a long way from you.

Answer 5

helped contact people so they wouldn't have to write letters.