ClipArt ETC
"Suspend two egg-shell conductors as shown. Be sure that the shells are in contact. Bring an electrified glass rod near one of them, and slide one of the loops along the supporting rod until the shells are about 10 cm. apart. Hold the electrified rod between the shells. It will attract one and repel the other, showing that thye are oppositely electrified." -Avery 1895

Electrostatic Induction

"Suspend two egg-shell conductors as shown. Be sure that the shells are in contact. Bring an electrified…