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Updated: May 24, 2025
He has made very precise quantitative experiments, and has demonstrated, in his turn, that it is impossible, even with spherical waves, to succeed in determining on which of the two vectors which have to be regarded in all theories of light on the subject of polarization phenomena the luminous intensity and the chemical action really depend.
The words are clear and their author is the originator of the whole method of plant breeding selection. Yet the principle has been abandoned, and nearly forgotten under the impression that polarization alone was the supreme guide to be relied upon.
As stated at the time, this discovery ushered in the darkest hour in the fortunes of the wave theory. But the darkness did not continue. In 1811 Arago discovered the splendid chromatic phenomena which we have had illustrated by the deportment of plates of gypsum in polarized light; he also discovered the rotation of the plane of polarization by quartz-crystals.
A little later in 1808 he might have witnessed the discovery made by Malus of polarization by reflexion, and would have been able to note, no doubt with stupefaction, that under certain conditions a ray of light loses the property of being reflected.
The incipient cloud, in every case, would exhibit this superb blue; thus proving to demonstration that particles of infinitesimal size, without any colour of their own, and irrespective of those optical properties exhibited by the substance in a massive state, are competent to produce the blue colour of the sky. Polarization of Skylight.
Gases, impalpable powders, and woolen stuffs, in common with other non-conductors of sound, give forth notes of different pitches when played upon by an intermittent beam of white light. Colored stuffs will sing in lights of different colors, but refuse to sing in others. The polarization of light being now accomplished, light and sound are known to be alike.
All the phenomena of colour and of polarization observable in the case of skylight are manifested by those actinic clouds; and they exhibit additional phenomena which it would be neither convenient to pursue, nor perhaps possible to detect, in the actual firmament.
A mental scientist bringing his own mind up to the desired vibration by his trained will, and thus obtaining the desired polarization in his own case, then produces a similar mental state in the other by induction, the result being that the vibrations are raised and the person polarizes toward the Positive end of the scale instead toward the Negative, and his Fear and other negative emotions are transmuted to Courage and similar positive mental states.
To the observer in this position the rotation of the plane of polarization, by the turpentine, is right-handed. Let the eye be placed at the north end of the tube, and a beam be sent through it from the south; the rotation is still right-handed. Not so, however, when a bar of heavy glass is subjected to the action of an electric current.
Gee-Gee looked at him in astonishment, then slowly grinned. He thrust out a grimy hand. "You're my boy, young Brant. Who taught you about polarization?" Rick was about to say, truthfully, "My father." But he caught himself in time. "A boss I had at Spindrift." "He taught you well, and you're right. I did goof on that one. I'll check, and you recheck."
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