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Phenomena of the Time-Infinitesimal1

Abstract

SCIENCE consists in the extension of our knowledge of the external universe, and it brings about this extension in great part by reinforcement of our senses. To bring into the field of observation the very distant and the very small, are therefore regarded as important scientific achievements, and the telescope and the microscope, by means of which this widening of the realm of knowledge has been made, as important implements of research.

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References

  1. "Eine einfach ausgedehnte Mannigfaltigkeit." (Riemann: Ueber die Hypothesen welche der Geometrie zu grunde liegen. Werke p. 257.)

  2. Stein, in a paper cited by Prof. Blake, Pogg. Ann. 159 (1876), describes a similar device, but it is difficult to ascertain from his paper to what exten he succeeded with his experiments.

  3. "Sur les Courants alternatifs et la force electromotive de l'arc electrique." Comptes Rendus, vol. xci. p. 161, July 19, 1880.

  4. "Observations on the electromotive forces of the Brush dynamo-electric machine." (title only.) Proceedings A.A.A.S. vol. xxix. p. 277 (1880). Prof. Thomas gave the results obtained, and described the method eleven years later in a communication to the Institute of Electrical Engineers, entitled "Notes on Wiping Contact Methods for Current and Potential Measurements," Translations of the American Institute of Electrical Engineers, vol. ix. p. 263.

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  11. In photographing the alternate current arc a single exposure of a continuous current lamp upon the moving plate, by way of check, brought out the seat and precise nature of the hissing of the arc in a manner scarcely to be reached in any other way. For the method used, see "A Photographic Study of the Electric Arc," Trans. Am. Inst. Electrical Engineers, vol. viii. p. 814, 1891.

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Phenomena of the Time-Infinitesimal1. Nature 49, 113–117 (1893). https://doi.org/10.1038/049113a0

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