ALEXANDER GRAHAM BELL(1847-1922)
Born on: 3rd March, 1847. Died on: 2th Aug, 1922.
Alexander Graham Bell was born in Scotland, later moved to America. He did research work in the investigation into the transmission of sound energy to electricity.
Contributions:
Graham Bell transmitted his voice electrically - the first time in the world.
Bell invented the Telephone.
Successfully converted Sound into electricity by designing a transducer device.
As an honor to his hard work, for the intensity of sound units, his name arranged i.e dB - deci bell.
Bell designed hydrofoils to make ships faster and kites capable of lifting heavy objects/people.
