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Updated: May 3, 2025
Thus the theory of Lorentz, as well as that of Maxwell, leads us to foresee that if an insulating mass be caused to move in a magnetic field normally to its lines of force, a displacement will be produced in this mass analogous to that of which Faraday and Maxwell admitted the existence in the dielectric of a charged condenser.
Distance with him is immaterial. His strength as a generalizer enables him to dissolve the idea of magnitude; and if you abolish the walls of the room even the earth itself he would make the sun and planets the outer coating of his jar. I dare not contend that Faraday in these memoirs made all his theoretic positions good.
This brings us to a point of our inquiries which, though rarely illustrated in lectures, is nevertheless so likely to affect profoundly the future course of scientific thought that I am unwilling to pass it over without reference. I refer to the experiment which Faraday, its discoverer, called the 'magnetization of light. The arrangement for this celebrated experiment is now before you.
The establishment of this point was absolutely necessary to the explanation of magne-crystallic action. With that admirable instinct which always guided him, Faraday had seen that it was possible, if not probable, that the diamagnetic force acts with different degrees of intensity in different directions, through the mass of a crystal.
"I guess so," she said, indifferently, as if she was considering the subject for the first time; "but you can't expect me to have any very violent sympathies about a war that was dead and buried before I was born." "I don't believe you're a genuine Northerner, or Southerner either," said Faraday, laughing. "I guess not," said the young lady, with the same placid indifference.
A man may be feeble in organization, but, blessed with a happy temperament, his soul may be great, active, noble, and sovereign. Professor Tyndall has given us a fine picture of the character of Faraday, and of his self-denying labours in the cause of science exhibiting him as a man of strong, original, and even fiery nature, and yet of extreme tenderness and sensibility.
It was on Christmas morning, 1821, that Faraday first succeeded in making a magnetic needle rotate around a wire carrying an electric current. He was the discoverer of benzole, the basis of our modern brilliant aniline dyes. In 1831 he made the discovery he had been leading to for many years that of magneto-electric induction.
There were many other researches made by Faraday, such as his experiments on disruptive electric discharges, his investigations on the electric eel, his many researches on the phenomena both of frictional electricity and of the voltaic pile, his investigations on the contact and chemical theories of the voltaic pile, and those on chemical decomposition by frictional electricity; these are but some of the mere important of them.
This account is supplemented by the following letter, written by Faraday to his friend De la Rive, on the occasion of the death of Mrs. Marcet. The letter is dated September 2, 1858: 'My Dear Friend, Your subject interested me deeply every way; for Mrs. Marcet was a good friend to me, as she must have been to many of the human race.
Nearly a hundred years had still to pass ere Franklin should demonstrate the identity of the electric fire with lightning, and nearly another hundred before Faraday should reveal a mode of generating it from mechanical power.
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