Silvia - Inventions

Composition: An important invention. (final version)

I used to think that the telephone was invented by Alexander Graham Bell but after a little research, we can see that many scientists dispute the credit for this invention. But as usual the Americans Elisa Gray and A. Graham Bell have become the best known.

The telephone emerged from the creation of the electrical telegraph. Though the early researches of the telegraph were from the fourteenth century, in the seventeenth century many scientists in many countries were searching for other ways of sending multiple telegraph messages simultaneously over a single telegraph wire by using different modulated audio frequencies for each message and these efforts led directly to the invention of the telephone, or 'the speaking telegraph'.

The invention of the telephone made people closer at a time when transports had not been developed yet. At the beginning, they were heavy and the sound was not so clear. In the course of time, they became much lighter and achieved a better performance.

The disadvantage of the telephone is that it needs wires to connect people. That’s why nowadays we may have much more cell phones than telephones. Another disadvantage is that it is not so secure. If somebody wants, he can hear our conversation without our awareness.

I chose to tell you about the telephone because in my opinion it can be considered one of the most important invention in the whole telecommunication development process.