Pascal Vases

Pascal Vases

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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.
Ref: L. E. Knott Apparatus Co., Catalogue of Physical Instruments (Boston, [1912]), p. 169.
Currently not on view
Object Name
liquid level apparatus
overall: 10 in x 5 1/2 in x 12 1/2 in; 25.4 cm x 13.97 cm x 31.75 cm
overall: 9 7/8 in x 12 1/2 in x 5 1/2 in; 25.0825 cm x 31.75 cm x 13.97 cm
ID Number
catalog number
accession number
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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