A small bell jar made of glass. The jar is double-walled, and formed of two jar shapes, the smaller nested inside the larger and the two sealed around the bottom rim. The jar is closed with a rounded top at one end, which narrows to a glass point.
Accession Number: 2009.ph.210
Primary Materials: Glass
Dimensions (cm): Height = 10, Circumference = 6.5
If place over a pump, and a seal created around the base, the air inside the glass can be evacuated, creating a vacuum which can be used in experiments. The double wall may be to insulate the interior. This jar may be a demonstration piece made by a glass blower.
Excellent. Some barely visible scratches but otherwise in perfect condition.
Date of Manufacture:
Department of Physics, University of Toronto
Additional Information and References: