ALEXANDER GRAHAM BELL
His name is Alexander Graham Bell.
He wash born in Scotland.
He was a scientist, an engineer and an inventor.
Mabel Hubbart was his wife. They had two daughters and two sons.
He changed the world with the invention of the telephone. A telephone transforms human voice into electronic signals via cable over long distances and answer with another audible form.
He worked on acoustic telegraphy with his assistant and electrical designer Tomas Watson.
Bell improved on the design and by 1887 more tan 150000 people owned telephones in the United States.
On February 14th, 1876, Bell and an American electrical engineer named Elisha Gray both patented the transmission of sounds telegraphically.
There is a debate about who got there first but the patent was awarded to Bell.
Bell also became an excellent piano player at a young age.
