Assignment:
Build the device described here https://www.popsci.com/listen-to-records-with-your-teeth
1) Take a photo of yourself using the device. Be sure we can see both your face and the device. Please attach this photo to your submission. Feel free to share materials with other students in the class in order to defray any costs you may encounter.
2) Given what we learned about sound waves, explain how the device works. How can you be hearing sound without using your ears? Please input this answer as a text submission so that you can attach the photo from question 1.