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Updated: June 28, 2025
Moreover, the hums were made to record themselves on paper by turning the electro-magnetic receiver into a relay, which actuated a Morse printer by means of a local battery. Mr. Elisha Gray, of Chicago, also devised a tone telegraph of this kind about the same time as Herr La Cour.
Another subject of importance, that takes no little time to understand by the Martian student is the part played by the planet's satellites in the generation of Electro-Magnetic energy. The sun together with its circulating family of planets is a huge Electric motor, so a planet and its satellites are minor generators of Electric energy.
A long, thick, luxuriant growth of golden hair, brilliant with changing hues of a coppery tinge, seemingly so surcharged with electro-magnetic force, as to form a halo of sunshine around both face and head, is her chief personal adornment.
If it were otherwise, no patent in which a combination of different elements is used could ever be obtained. For no man ever made such an invention without having first obtained this information, unless it was discovered by some fortunate accident. And it is evident that such an invention as the Electro-Magnetic Telegraph could never have been brought into action without it.
The phenomena can be explained in terms of higher space. If Hinton's hypothesis be the true explanation, the universality of electro-magnetic action would again point to the conclusion that our three-dimensional world is superficial the surface, that is, of a four-dimensional universe.
In wireless telegraphy it is absolutely necessary that the transmitter of the electro-magnetic waves should be brought into perfect harmony with the receiver without that condition it is impossible to communicate at a distance; again, a heavy pendulum or swing can, by a certain force, be pushed, say an inch, from its position of rest, and each successive push will augment the swing, but only on one condition, namely, that the force is applied in sympathy with the pendulum's mode of swing; if the length of the pendulum is 52 feet, the force must be applied only at the end of each eight seconds, as, although the pendulum at first is only moving one inch, it will take four seconds to traverse that one inch, the same as it would take to traverse 10 feet or more, and will not be back at the original position till the end of eight seconds; if the force is applied before that time the swing of the pendulum would be hindered instead of augmented.
The principle has already been explained namely, the alternate rising and falling of an iron rod within a helix through which an electro-magnetic current is made to pass: when the current is on, the rod rises, and remains, as it were, self-suspended, equidistant from all parts of the surrounding helix; and falls as soon as the current ceases by breaking contact with the battery.
He failed, indeed, to account for the variation in coronal types by the changes in our situation with regard to the sun's equator. It is only necessary to remark that, if this were so, they should be subject to an annual periodicity, of which no trace can be discerned. Electro-magnetic theories have the charm, and the drawback, of dealing largely with the unknown.
At a meeting of the Society of Arts in May of 1901, Professor Ayrton, commenting on Marconi's system, said that we "are gradually coming within thinkable distance of the realization of a prophecy he had ventured to make four years before, at a time when, if a person wanted to call to a friend he knew not where, he would call in a very loud electro-magnetic voice, heard by him who had the electro-magnetic ear, silent to him who had it not.
She had been one of the notetakers for the Venonian government. We got most of their conversation, but she died of burns before she finished. "The Galactians know nothing of the twin-ray beyond its action, and that it is an electro-magnetic phenomenon, though they have been able to distort it by using a sheet of pure energy.
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