Electrostatic sphere on insulated stand

Electrostatic sphere on insulated stand

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Usage conditions apply
Description (Brief)
Electrostatic sphere, 4.5" hollow brass sphere mounted on glass post affixed to wooden base. Used to demonstrate that a charge remains on the outer surface and does not penetrate into the interior. Reference: Knott Co. Catalog (1921), page 135.
Currently not on view
Object Name
Electrostatic Sphere
date made
ca 1921
overall: 12 in x 6 1/2 in; 30.48 cm x 16.51 cm
ID Number
accession number
catalog number
Credit Line
from Dunbar High School, thru Charles Lofton
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Work and Industry: Electricity
Data Source
National Museum of American History
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