Sentence Examples

  • Formerly the sparkand absorption-spectra were the sole methods available; a third method was introduced by Crookes, who submitted the oxides, or preferably the basic sulphates, to the action of a negative electric discharge in vacuo, and investigated the phosphorescence induced spectroscopically.
  • Edmond Becquerel was associated with his father in much of his work, but he himself paid special attention to the study of light, investigating the photochemical effects and spectroscopic characters of solar radiation and the electric light, and the phenomena of phosphorescence, particularly as displayed by the sulphides and by compounds of uranium.
  • He also engaged in work on magnetism, the polarization of light, phosphorescence and the absorption of light in crystals.
  • While this pallidness was burning aloft, few words were heard from the enchanted crew; who in one thick cluster stood on the forecastle, all their eyes gleaming in that pale phosphorescence, like a far away constellation of stars.
  • It is not merely on land that this phenomenon of phosphorescence is to

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