Alexander Graham Bell was born in 1847 in Edinburgh he was famous for making the telephone. Alexander Graham Bells mother was nearly deaf so she tried to listen. Alexander graham bell was very interested in how sound works.
Alexander Graham Bell saw vibrations making the sound. His father set him a challenge to make a machine to replicate human voice. He tried to figure out how to make it. He made something and it kind of worked. He had to improve the machine. They could only send one message at a time. He had an idea to send one voice.Alexander Graham Bell accidentally spilt some acid on his trousers and the machine worked.