Pascal Vases (3)


The fact that a liquid poured into several communicating vases, whatever their shape, will seek the same level in each, was known in antiquity. It became scientific when the French savant, Blaise Pascal, discussed it in his Treatise on the Equilibrium of Liquids (1653). In time, simple hydrostatic instruments became popular for classroom demonstrations, and these instruments became known as Pascal vases. These three glass vessels of different sizes and shapes, with a threaded collar of brass at the lower part of each, were made for that purpose.

Ref: Charles F. Adams, Physics for Secondary Schools (New York, 1906), pp. 136-137.

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Data Source: National Museum of American History

Id Number: 1979.1202.01Catalog Number: 1979.1202.01Accession Number: 1979.1202

Object Name: hydrostatic equilibrium apparatus

Measurements: overall: 3 1/2 in x 16 1/2 in x 5 7/8 in; 8.89 cm x 41.91 cm x 14.9225 cmoverall; vessels in housing: 4 1/4 in x 10 1/4 in x 13 5/8 in; 10.795 cm x 26.035 cm x 34.6075 cmoverall; stand: 3 5/8 in x 6 1/2 in x 5 5/8 in; 9.2075 cm x 16.51 cm x 14.2875 cm


Record Id: nmah_1761380

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