Nov. 12, 2024
According to Staab (2012), knowledge of bone conduction hearing dates back to the era of Girolamo Cardano (1501-1576), a physician, mathematician, philosopher, and early deaf educator. In his book “De Subtilitate” (1550), Cardano described a method involving a rod or spear shaft held between the teeth to transmit sound to the ear. Bone conduction is one of the fundamental concepts