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Updated: May 21, 2025
There is no apparent difference in the wire, no surface abrasion or other change, yet each particle of steel undergoes an electromagnetic transformation by which the sound is indelibly imprinted on it until it is wiped out by the erasing magnet.
If an electric current is passed through water it is broken down into the two elements of which it is composed hydrogen and oxygen. The process is used extensively in modern industry for electroplating. He also established the laws of the process itself. But most people remember his name in connection with his practical demonstration of electromagnetic induction.
Nikola Tesla, the American electrical celebrity, that he had received a message from Mars. His announcement renewed attention to fact that had long been familiar to scientific people, namely: that from some unknown source in space, waves of electromagnetic disturbance, entirely similar those used by Signor Marconi for his wireless telegraphy, are constantly reaching the earth.
Through manipulation of the fleshy tissues, the blood is drawn to the surface of the body and in that way the elimination of morbid matter through the relaxed and opened pores of the skin is greatly facilitated. Very important are the electromagnetic effects of good massage upon the system.
Now if a bar of soft iron is brought close to one end of the coil of wire, or, better still, if it is pushed into the coil, it will be magnetized by electromagnetic induction, see D, and it will remain a magnet until the current is cut off. Mutual Induction.
Either it is posited before you in sense-awareness or you are ignorant of the entity red. But science has explained red. Namely it has discovered interconnexions between red as a factor in nature and other factors in nature, for example waves of light which are waves of electromagnetic disturbances.
The discussion of the details of the process of abstraction will exhibit time and space as interconnected, and will finally lead us to the sort of connexions between their measurements which occur in the modern theory of electromagnetic relativity. But this is anticipating our subsequent line of development.
By some elegant mathematics he had shown the probable existence of electromagnetic waves of radiation. He generated and detected electromagnetic waves across the length of his laboratory on a wavelength of approximately one metre. His own photograph of the equipment he had set up can be seen in the Deutsches Museum in Munich.
If other electrons follow the first within a wire, their passage along the wire will be what is called an electric current. Cf. Sir Oliver Lodge, Electrons, London, 1906, p. 200. When the electron is subjected to an acceleration, a transverse wave is produced, and an electromagnetic radiation is generated, of which the character may naturally change with the manner in which the speed varies.
If the direction of flow of current be reversed, by reversing the battery, the electromagnetic polarity also reverses and the end of the permanent magnet swings over to the other side. This device being a relay, its purpose is to repeat transmitted signals into a local circuit, as before explained.
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