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1500
Curing Deafness
Alexander from Talles tried to cure deafness with loud noises and by pouring things like blood, bile, and urine in the ears. -
Ear Trumpets
Sound was amplified through a funnel. These varied in size, shape, and application. In later years, these were disguised in furniture. -
Akouphone
After Alexander Graham Bell's invention of the telephone, Miller Reese Hutchinson invented an electric, carbon hearing aid. -
Vactuphone
https://www.kent.edu/ehhs/hs/spa/electric-vaccuum-tube Vactuphones used vacuum tubes to change speech to electrical current and amplify the decibels. These were more portable but still heavy. They often got too hot and broke down. -
Transistors
These were smaller and could be worn on the chest. With smaller batteries, these were safer and more common. However, they had a short battery life. -
Digital Hearing Aids
https://www.youtube.com/watch?v=iFboI-fGdT4 Check out this video on how digital hearing aids work. These hearing aids are still used today. -
Cochlear Implants
https://www.youtube.com/watch?v=zeg4qTnYOpw These are still used today. This surgery is not meant to CURE deafness, but allow some users to have a different kind of hearing.
