Sound receptors are tiny sharp spiky things in human's ears. They can convert translate vibration vibrational energy of the sound in human's eardrum to into physical signals motion, and then transform convert the motion into electronic electrical signals signal. In a word, sound receptors They are impressive things stuffs. Finally, At the end, the professor invited some MIT students to have a closer look view at the receptors remarkable devices instead of talking about the details of sound reporters.
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