what did alexander graham bell make except for the tellephone?

[BobB]

my teacher is making me do a project all about Alexander Graham Bell and i have every thing but what he made i have pics i have captions and all i can find is he made the telephone and the metal detector i need a lot of help so please send me an answer.

 

[oikos]

As I recall, he was very interested in helping the hearing-impaired.

 

[stephaniet:]

Er, the Hydrofoils, Aeronautics and microscope,photo phone and a triangular figure that was like a kite.