Edmund Taylor Whittaker, A History of the Theories of Aether and Electricity from the Age of Descartes to the Close of the Nineteenth Century (1910).
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J. J. Thomson, by a rotating-mirror method, succeeded in measuring the velocity of the cathode rays, finding it to be 1.9 x 107 cm./sec.; a value so much smaller than that of the velocity of light that it was scarcely possible to conceive of the rays as vibrations of the aether.
— Edmund Taylor Whittaker
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About J. J. Thomson
Sir Joseph John Thomson, OM, FRS (18 December 1856 – 30 August 1940), often known as J. J. Thomson, was an English physicist and Nobel laureate in physics, credited with the discovery and identification of the electron, the discovery of the first subatomic particle, isotopes, and the invention of the mass spectrometer.
About J. J. Thomson
Sir Joseph John Thomson, OM, FRS (18 December 1856 – 30 August 1940), often known as J. J. Thomson, was an English physicist and Nobel laureate in physics, credited with the discovery and identification of the electron, the discovery of the first subatomic particle, isotopes, and the invention of the mass spectrometer.
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