This has a number of colored ribbons attached to a vacuum cup. When mounted on the dome of a Van de Graaff generator, the ribbons will slowly acquire a charge, even though they are normally thought of as insulators or non-conductors. As the charge builds, the ribbons will stand away from each other. This is a vivid demonstration showing that like charges repel one another.
Wabash Model #N-125.
Instructions for Electric Plume
Forensics Lab Supply Number 3178925.
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