CH.PHYSICS
Nov 26, 20191 min
Updated: Apr 26, 2020
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.