What question did this study set out to answer?

To re-determine the coefficient of viscosity of air with high precision to accurately account for atmospheric resistance during experiments on the internal friction of metals.

December 31, 1886Philosophical Transactions of the Royal Society of London

XIX. The coefficient of viscosity of air

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Authors

HTHerbert TomlinsonGoogle (United States)

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Implication

Experimental investigation evaluates the coefficient of viscosity of air across temperatures, highlighting large discrepancies among historical determinations.

Key Points

To re-determine the coefficient of viscosity of air with high precision to accurately account for atmospheric resistance during experiments on the internal friction of metals.
Evaluated theoretical formulations of air viscosity based on Maxwell's model of shear velocity between parallel horizontal planes.
Analyzed the relationship between tangential shear force, plane separation distance, and velocity gradient using dimensional analysis (dimensions L⁻¹MT⁻¹).
Compared existing empirical measurements of air viscosity across various historical investigations alongside Maxwell's temperature-dependent formula.
Identified wide divergence among previously published experimental values for the viscosity coefficient of air.
Assessed Maxwell's formula, μ = 0.0001878(1 + 0.00365θ), which defines viscosity as independent of air pressure and directly proportional to absolute temperature θ in degrees Celsius.

Cite This Study

Herbert Tomlinson (1886) studied this question.

synapsesocial.com/papers/6aa35c4435cd30b462c60ccc https://doi.org/10.1098/rstl.1886.0020

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December 31, 1886Philosophical Transactions of the Royal Society of London

XIX. The coefficient of viscosity of air

View Full Paper

Ask AI

Bookmark

Authors

HTHerbert TomlinsonGoogle (United States)

Discussion

Member takes

Implication

Experimental investigation evaluates the coefficient of viscosity of air across temperatures, highlighting large discrepancies among historical determinations.

Key Points

To re-determine the coefficient of viscosity of air with high precision to accurately account for atmospheric resistance during experiments on the internal friction of metals.
Evaluated theoretical formulations of air viscosity based on Maxwell's model of shear velocity between parallel horizontal planes.
Analyzed the relationship between tangential shear force, plane separation distance, and velocity gradient using dimensional analysis (dimensions L⁻¹MT⁻¹).
Compared existing empirical measurements of air viscosity across various historical investigations alongside Maxwell's temperature-dependent formula.
Identified wide divergence among previously published experimental values for the viscosity coefficient of air.
Assessed Maxwell's formula, μ = 0.0001878(1 + 0.00365θ), which defines viscosity as independent of air pressure and directly proportional to absolute temperature θ in degrees Celsius.

Cite This Study

Herbert Tomlinson (1886) studied this question.

synapsesocial.com/papers/6aa35c4435cd30b462c60ccc https://doi.org/10.1098/rstl.1886.0020

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