Demainbray's hydrostatic paradox vessels

Made:
1735-1752
Vessels for demonstration of the 'hydrostatic paradox', before 1753. These vessels were used by the  lecturer and Vessels for demonstration of the 'hydrostatic paradox', before 1753. These vessels were used by the  lecturer on Vessels for demonstration of the 'hydrostatic paradox', before 1753. These vessels were used by the  lecturer on

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Vessels for demonstration of the 'hydrostatic paradox', before 1753. These vessels were used by the lecturer and
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Vessels for demonstration of the 'hydrostatic paradox', before 1753. These vessels were used by the lecturer on
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Vessels for demonstration of the 'hydrostatic paradox', before 1753. These vessels were used by the lecturer on
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Science Museum Group
© The Board of Trustees of the Science Museum, London

Science Museum Group
© The Board of Trustees of the Science Museum, London

Science Museum Group
© The Board of Trustees of the Science Museum, London

Science Museum Group
© The Board of Trustees of the Science Museum, London

Science Museum Group
© The Board of Trustees of the Science Museum, London

Science Museum Group
© The Board of Trustees of the Science Museum, London

Vessels for demonstration of the hydrostatic paradox, maker unknown, before 1753. Once belonged to Stephen Demainbray.

Vessels for demonstration of the hydrostatic paradox, before 1753. The vessels were filled with water. A balance beam was suspended above the apparatus with one arm carrying a piston which could move vertically in the container, and the other carrying a counter-balance weight in a scale-pan. The pressure on the piston in all three vessels was found to be the same, since pressure is dependent on depth and not on the volume of water present. These vessels once belonged to Stephen Demainbray and was used by him in his lectures on natural philosophy. Demainbray worked as superintendent at the King's observatory at Kew from 1768 and his collection of instruments and apparatus was absorbed into the King's own collection.

Details

Category:
King George III
Object Number:
1927-1749
Materials:
brass and tinplate
type:
hydrostatic vessels
credit:
King's College, London