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Updated: June 5, 2025
The air-regenerating apparatus had been developed from the aeriating culture-tanks in which antibiotics were grown on Earth. It needed only reseeding with algae microscopic plants which when supplied with ultraviolet light fed avidly on carbon dioxide and yielded oxygen. The ship was a rather involved combination of essentially simple devices.
"'You know, he said, 'that objects too small to be seen by the microscope, because smaller than der amplitude of der shortest wave of visible light, can be seen when exposed to der ultraviolet light der dark light beyond der spectrum? Und you know that this light is what acts der most in photography?
The relation between the adrenal and the skin dates way back in the evolutionary scale, for adrenalin has been isolated directly from pigment deposits in the epidermis of frogs. Skin pigment bears a direct relation to the reaction of the organism to light, especially the ultraviolet rays, to the radiation of heat, and hence to the fundamental productions and consumptions of energy by the cells.
Putting into our hands a new powerful searchlight that penetrates the interiors of body and soul, a fresh attitude toward the complicated problems of Man in society grows imminent. The normal and the abnormal become illuminated with an effect as if our retinas were suddenly to get sensitive to the ultraviolet rays to which we are now blind.
Equal pressure to the lifting power of the generator was exerted against the synchronizers at the power plant, but this force, not being concentrated directionally along an ultraviolet beam, involved a practical problem only at points relatively close to the synchronizers.
I must have a concave mirror, not of glass, which is opaque to this light, but of metal. "'What for? I asked. "'To throw der ultraviolet light on der beast. I can generate it with mine static machine. "'How will one of our lantern reflectors do? They are of polished tin, I think. "'Good! I can repolish one.
"Ultraviolet rays have recently been found very valuable in the examination of questioned documents. By the use of a lens made of quartz covered with a thin film of metallic silver, there has been developed a practical means of making photographs by the invisible rays of light above the spectrum these ultraviolet rays.
And I know" he spoke with vehemence "that there are creatures in the deep sea of color invisible to the human eye, for I have not only felt such a creature, but seen its photograph taken by the ultraviolet light." "Tell me," I asked breathlessly. "Creatures solid, but invisible?" "Creatures solid, and invisible because absolutely transparent. It is long since I have told the yarn.
Over across the room, the rest of the Times staff, Julio Kubanoff, was sitting at the composing machine, his peg leg propped up and an earphone on, his fingers punching rapidly at the keyboard as he burned letters onto the white plastic sheet with ultraviolet rays for photographing. Julio was an old hunter-ship man who had lost a leg in an accident and taught himself his new trade.
"We'd better watch ourselves; that thing is giving off plenty of ultraviolet. We could end up with third-degree sunburns if we're not careful." Suddenly he stopped and looked around in surprise. "Hey! Morey! I thought you said this was a double star! Look over there! That's no white dwarf it's a planet!" "Ridiculous!" snapped Morey.
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