Dispersion in the Ether: Light over the Water

@article{Pippard2001DispersionIT,
  title={Dispersion in the Ether: Light over the Water},
  author={Sir Brian Pippard},
  journal={Physics in Perspective},
  year={2001},
  volume={3},
  pages={258-270}
}
  • S. B. Pippard
  • Published 1 September 2001
  • Physics
  • Physics in Perspective
Abstract. This is an account of measurements of the velocity of light by James Young (1811–1883) and George Forbes (1849–1936) around 1880 based upon an improved version of Fizeau's toothed-wheel method. They presented evidence for a dispersive effect resulting in a difference in the velocity of 1.8% across the visible spectrum. This conflicted with Albert A. Michelson's measurements and prompted discussions by Lord Rayleigh, Arthur Schuster, Léon Gouy, J. Willard Gibbs, and Paul Ehrenfest that… 
2 Citations
A Spontaneous Physics Philosophy on the Concept of Ether Throughout the History of Science: Birth, Death and Revival
In the course of the history of science, some concepts have forged theoretical foundations, constituting paradigms that hold sway for substantial periods of time. Research on the history of
O éter e a óptica dos corpos em movimento: a teoria de Fresnel e as tentativas de detecção do movimento da Terra, antes dos experimentos de Michelson e Morley (1818-1880)
No ensino e divulgacao da teoria da relatividade e comum apresentar-se o experimento de Michelson e Morley, de 1887, como sendo a evidencia experimental que mostrou a impossibilidade de medir a

References

SHOWING 1-10 OF 10 REFERENCES
On the Velocity of Light
WITH reference to Lord Rayleigh's article on the Velocity of Light (vol. xxiv. p. 382) I, and possibly others, find it difficult to follow him when he says, in the case of all the methods for
On the Velocity of Light as Determined by Foucault's Revolving Mirror
IT has been shown by Lord Rayleigh and others that the velocity (U) with which a group of waves is propagated in any medium may be calculated by the formula— where V is the wave-velocity, and λ the
On the Velocity of Light as Determined by Foucault's Revolving Mirror
A FEW years ago Lord Rayleigh raised an interesting question as to the quantity actually determined by our experiments and observations on the velocity of light. There can be no difficulty as long as
On the Velocity of Light
IN view of the experiments of Young and Forbes on the velocity of light, and of the article published by Lord Rayleigh on the subject, it may not be out of place to state as a fact which seemed at
The Ether-Drift Experiment and the Determination of the Absolute Motion of the Earth
The ether-drift experiment first suggested by A Maxwell in 1878 and made possible by Michelson's invention of the interferometer in 1881, though suitable for the detection of the general absolute
V. Experimental determination of the velocity of white and of coloured light
The method employed in this research to measure the velocity of light resembled the method of M. Fizeau, subsequently employed by M. Cornu. A revolving toothed wheel is employed in the same way to
Precision Measurement. (A Reunion in Physics: The Fundamental Physical Constants and the Frontier of Measurement)
Fundamental physical constants are used throughout the world by scientists and technologists in the course of every kind of theoretical and experimental research work. The book examines the present
George Forbes, 1849-1936
George Forbes was born in Edinburgh on 5 April, 1849, and died at Worthing on 22 October, 1936. He went for a time to the Edinburgh Academy, just twelve years after Maxwell and P. G. Taithad left the