PIRA Classification: 5A40.30
Description: A 2" x 4" is placed on a low-friction pivot so it can rotate freely. A rod is charged and brought near one end of the plank. The plank with follow the rod.
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