INVENTIONS

THE RADIO
The radio is one of the most important inventions of all time.This is a communication system that reduce distances for everyone.WITH this essay i want to show how this invention is used in all the world, also i want to show the progress of this revolutionary machine.

THE ORIGIN OF THE RADIO
The origin of the radio begins with the telegraphy. Telegraphy means writing in distance in greek and this is a communication system that consist in coded numbers, letters and signs.
The first modern telegraph was made in France in 1792, but arround 1838 was created the first electric telegraph machine by Morse in New York. With this new electric technology, the receptor was able to receive messages from a transmitter that could be long miles away.