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When the point of the ruby fuses the phosphorescence becomes very powerful; but as the atoms are projected with much greater speed from the surface of the drop, soon the glass gets hot and "tired," and now only the outer edge of the patch glows.
Plainly there was a flight of steps ascending from his own level to that of this illuminated doorway; and indeed he thought he could make out another thread of light, as fine as a needle, and as faint as phosphorescence, which might very well be reflected along the polished wood of a handrail.
He found that if a plate covered with a phosphorescent substance is placed near a discharge tube exhausted so highly that the cathode rays produced a green phosphorescence, this plate is made to glow in a peculiar manner. The rays producing this glow were not the cathode rays, although apparently arising from them, and are what have since been called the Roentgen rays, or X-rays.
Drifting in was some object a small, three-cornered, sail-like thing. Another flash of phosphorescence, and the triangular fin disappeared. Drew shuddered as he stood naked at the water's edge. He could not fail to identify the creature. Something besides the Bertha Hamilton had been shut in the lagoon by the rising reef.
The bulb may be exhausted to a fairly high degree, nearly to the point when phosphorescence begins to appear.
Far behind, until the horizon closed upon the ocean, our wake was curiously remindful of the boulevard of a great city seen through a mist, the lights fading in the dim distance, but sparkling still. I went forward and stood by the cathead. The blue water stirred by the bow was wonderfully bright, a mass of coruscating phosphorescence that lighted the prow like a lamp.
I obeyed and following the line of sight which he had indicated, perceived, at a distance of about two hundred yards a faint glow, so faint indeed that I think only Hans would have noticed it. Really it might have been nothing more than the phosphorescence rising from a heap of fungus, or even from a decaying animal.
For interminable miles a vast icy plateau stretched before them a plain glistening with snow and reflecting like a burnished mirror the misty silveriness of the moon. Over the glacial expanse an eerily greenish phosphorescence, which palpitated and shifted at times with vivid splashes of opal and deeper tones of burning blue, hung low.
Phosphorescence becomes more intense, and most bodies of complex structure milk, eggs, feathers, cotton, and flowers become phosphorescent. The same is the case with certain simple bodies, such as oxygen, which is transformed into ozone and emits a white light in the process. Chemical affinity is almost put an end to; phosphorus and potassium remain inert in liquid oxygen.
I do not know why the name "carborundum" has been given to it, unless there is something in the process of its manufacture which justifies this selection. Through the kindness of the inventor, I obtained a short while ago some samples which I desired to test in regard to their qualities of phosphorescence and capability of withstanding high degrees of heat.
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