Hugh Tripp shows how you can do your own investigation of Tizz.
Cut a strip from one sheet of inkjet paper and fold it into a zig-zag like you see in Hugh's left hand.
Cut the remaining piece into a circle.
Listen to the sounds of these objects in a quiet, dry environment. Gently excite the round sheet by wiggling it. What do you hear?
Gently excite the zig-zag by wiggling it and compare the sound against the circle.
You will find one structure will generate more noise than the other one.