What does Thomas Edison's phone do?

Answer 1

Thomas Edison's phonograph and Alexander Graham Bell's telephone both transduce sound waves into electrical impulses that interrupt a magnetic field causing movement. In the case of the telephone, the movement is in a speaker at the other end of a transmission wire, causing sound that mimics the original sound. In the case of the phonograph, the movement is transferred to a stylus that etches a rotating wax cylinder, thereby creating a recording of the original sound.