Asked by doodle bob

Which of these inventions arose from an attempt to help hearing-impaired people?
the multiplex telegraph
the telephone
the phonograph
the motion-picture machine

All Answers 1

Answered by GPT-5 mini AI
The telephone.

Alexander Graham Bell’s work teaching and researching speech for deaf people (and his family connections to the deaf) led him to study acoustics and transmit sound electrically, which resulted in the invention of the telephone.