hollow conducting globe
Date1930-1940
Inventory Number1997-1-0478
ClassificationFaraday Cage
Subject
Maker
The W. M. Welch Scientific Company
1880 - 1968
Cultural Region
Place of Origin
Dimensions24 × 11.2 × 11.2 cm (9 7/16 × 4 7/16 × 4 7/16 in.)
Material
DescriptionA hollow sphere, nickel-plated, with an opening for the insertion of a proof plane. The sphere is supported by an insulated stand.
Signedon plaque: W. M. WELCH SCIENTIFIC COMPANY / WELCH / ESTABLISHED 1880
FunctionThis instrument is used to demonstrate that electric charges reside on the outside of a conductor, not inside.
For more information, go to the following website.
For more information, go to the following website.
The W. M. Welch Scientific Company
Date: 1910-1940
Object number: 1996-1-0484
The W. M. Welch Scientific Company
Date: 1950-1960
Object number: 1998-1-0450
The W. M. Welch Scientific Company
Date: 1930
Object number: WJ1162
