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In the case of light the action of these higher and lower vibrations is easily perceptible in the effects produced by the actinic rays at one end of the spectrum and the heat rays at the other.
And there is no time for that aboard a fast steamer running through the ice and the fog. No, it is mere theory, but I have an idea that the ultraviolet light the actinic rays beyond the violet end of the spectrum, you know will penetrate fog to a great distance, and in spite of its higher refractive power, which would distort and magnify an object, it is better than nothing."
Snap murmured, "You've got a local phone?" "Yes. I'll get them to give us the street glare!" I pressed the danger signal, giving our location to the operator. In a second we got the light. The street in all this neighborhood burst into a brilliant actinic glare. The thing menacing us was revealed! A figure in a black cloak, crouching thirty feet away across the corridor.
Now, in photography, if a certain chemical is placed on a glass or a film, and the film is exposed, the light and dark portions of the object show on the film. The sunlight, or the actinic rays in the sunlight, affect the chemical material so that when the fixing chemical is applied it prevents a change in the condition of the chemical." "What do you mean by the actinic ray?"
"All light is vibration; the greatest motions which are perceptible to the eye, being known as violet. Now there are still more rapid vibrations than are put forth to make the violet rays, which are called the actinic rays, and are the ones which affect the chemicals so acutely." "Is it then possible to photograph with a light that is not perceptible to the eye?"
The extreme actinic feebleness of the equatorial bands was strikingly apparent on his plates.
The lenses of their helmets were of heavy, yellowish-red composition, protecting their dead-white skins and red eyes from all actinic rays for the Venerian lives upon the bottom of an everlasting sea of fog and his thin epidermis, utterly without pigmentation, burns and blisters as frightfully at the least exposure to actinic light as does ours at the touch of a red-hot iron.
He reminds us that the actinic ray, shining upon lupus, cures it a horrible disease which was incurable fifteen years ago, and had been incurable for ten million years before; that this wonder, unbelievable by the physicians at first, is believed by them now; and so he is tranquilly confident that the time is coming when the world will be educated up to a point where it will comprehend and grant that the light of the Spirit of God, shining unobstructed upon the soul, is an actinic ray which can purge both mind and body from disease and set them free and make them whole.
Then, abruptly, one of the trucks vanished in a monstrous, actinic flash of blue-white flame and a roar so horrible that it was not sound but pure concussion. The other truck keeled over and crashed from the blast, but did not explode. Men jumped from it. There must have been screamed orders, but Joe could hear nothing at all.
James McCarthy was welcomed with open arms, was washed and dressed in the most approved antiseptic manner; his gums were swabed with boracic acid, and he was fed from a sterilized bottle on Pasteurized milk, and tucked up in a crib with carbolized sheets, and placed close to the window where he could bask in actinic rays, and inhale ozone to his heart's content.
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