1 janv. 1600 - 1600-the 1900s: The Trumpet Hearing Aid Age

Description:

The first modern “devices” were introduced in the 17th Century, by French mathematician Jean Leurechon. Leurechon wrote the world’s first known description of a hearing aid—the ear trumpet. Trumpet hearing aids were the primary hearing aid until the turn of the 20th century. These non-electric aids were essentially sophisticated, powerful, and fairly effective ways of amplifying and directing sound, much like cupping a hand behind your ear. Trumpet hearing aids came in a number of forms, with names like London domes, pipe trumpets, and Dippers