Today, our team reported our current ideas and progress to the tutors. We decided to make a device that can spread sound. This device will have a very interesting shape with cotton threads in the middle. We tested several materials and found that Metal materials and cotton are the best materials for transmitting sound. We also encountered some other problems, that is, we need to connect two diagonal sounds, but the cotton thread cannot touch any object, otherwise it will affect the vibration and cannot spread the sound. We must solve this problem first, because we cannot avoid the cotton thread from touching other posts.
tina 