Bladder (or Hand) Glass

Description:

This heavy glass vessel open at both ends is designed for use with an air pump. When the air evacuated, a bladder (or hand) put over the top opening will be drawn into the vessel. The form has been used for physics demonstrations since the eighteenth century.

Ref: George Adams, A Catalogue of Optical, philosophical, and mathematical instruments (London, [1765]), p. 8.

G. P. Quackenbos, A Natural Philosophy (New York, 1860), pp. 180-181.

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences

Exhibition:

Exhibition Location:

Credit Line: Gift of Barbara A. Keppel

Data Source: National Museum of American History

Id Number: 1985.0311.303Catalog Number: 1985.0311.303Accession Number: 1985.0311

Object Name: bladder (or hand) glass

Measurements: overall: 7 1/2 in x 5 1/2 in; 19.05 cm x 13.97 cmoverall: 7 3/4 in x 6 in; 19.685 cm x 15.24 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ad-4d79-704b-e053-15f76fa0b4fa

Record Id: nmah_1391061

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