Why did the author think e-skin could make better hearing aids? In your answer, explain how the ears connect to the nervous system

The author thought this because e-skin might hold promise for use in soft, wearable hearing aids. Unlike conventional aids, soft devices are more comfortable because they mold to human skin. When the ear receives sound vibrations, there are hair cells in the cochlea that vibrate and translate the sounds into electrical signals. These electrical signals are transmitted to the auditory nerve, which transmits the information to the brain.

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate