1R50.40 - Faults in a Crystal
Add the desired amount of ping-pong balls and arrange in an ordered fashion. Turn upside down of shake. Faults will be readily apparent.
Another twist is to use different colored ping-pong balls arranged in an ordered structure. Turn upside down or shake to show random crystal formation.
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- Borislaw Bilash II, “Metallic Bonding“, A Demo A Day – A Year of Physical Science Demonstrations, p. 126.
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