- Glass has a very high coefficient of restitution. This makes glass marbles very bouncy, if dropped on very hard surfaces. When a marble is dropped onto the head of a hardened steel hammer (as shown on the left in the above photo) the marble bounces almost back up to the height of release. If dropped onto the surface of non-hardened steel (as shown on the right) the marble only bounces about 2/3 of the way back up.
- Located in L02, section B4