PIRA Classification: 5A20.10
Description: A PVC rod is rubbed with black cloth to produce a negative charge. A second PVC rod is placed on a platform which rotates freeley. When the charged rod is brought near the pivot, the rods repel. Can also be done with acrylic rods.
Special Instructions: Make sure you hear the build up of charge on the rod. This will be indicated by a crackling noise. Will not work well when humid (beginning of fall semester or summer session).
Condition: Good
Setup time: 1 minute
Safety Issues: None