Record

Reference numberPP/15/31
Previous numbersPP/47/32
LevelFile
TitlePaper, 'On a pneumatic analogue of the Wheatstone bridge' by William Napier Shaw
Date1890
DescriptionShaw writes: 'When fluid flows steadily through an orifice in a thin plate, the relation between the rate of flow, V, measured in units of volume of fluid per second, and the head H (the work done on unit mass of the fluid during its passage) may be expressed by the equation:— H = RV^2, where R is a constant depending upon the area of the orifice, If the head be measured in gravitation units, R is equal to 1/2gk^2a^2, where g is the acceleration of gravity, a the area of the orifice, and k the coefficient of contraction of the vein of fluid, a factor which is independent of the rate of flow.'

Annotations in pencil and ink. Includes a sketch and diagram of Shaw's pneumatic analogue of the Wheatstone bridge.

Subject: Pneumatics / Fluid dynamics / Electricity

Received 31 March 1890. Read 24 April 1890. Communicated by Lord Rayleigh [John William Strutt].

A version of this paper was published in volume 47 of the Proceedings of the Royal Society as 'On a pneumatic analogue of the Wheatstone bridge'.
Extent17p
FormatManuscript
Diagram
Physical descriptionInk and graphite pencil on paper
Digital imagesView item on Science in the Making
Access statusOpen
Related materialDOI: 10.1098/rspl.1889.0107
Fellows associated with this archive
CodeNameDates
NA7142Shaw; Sir; William Napier (1854 - 1945); meteorologist1854 - 1945
NA6090Strutt; John William (1842 - 1919); 3rd Baron Rayleigh; experimental and mathematical physicist1842 - 1919
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