Greatest+Invention

The First Telephone

When Alexander Bell was trying to invent the telephone, he figured out that he could send multiple signals on the same wire with his knowledge of music. You would talk into a mouth piece and then the transmitter, that was capable of using different electrical currents, made these electrical currents and different pitches audible. On the other end of the receiver, there was a coil of wire, that when it vibrated, caused the sound to be heard. This is how the first telephone worked.