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Updated: June 28, 2025
At times, for instance when walking up the Avenue on a bracing October day, he felt as if he owned all in sight a condition of mind which those who know from experience the powerful electro-magnetic current generated by the rushing life of the New York metropolis can well understand.
We are far out of range of their electro-magnetic detectors, and our torpedo will have such a velocity that they will have no time to protect themselves against it after detection. Unless they shift in the next few seconds, they are lost. This is the most perfect shot I ever had at one of them, but one shot is all I dare risk we must not betray ourselves."
Wheatstone subsequently investigated the conditions necessary to obtain electro-magnetic effects at a long distance. Had he studied the paper of Professor Henry in SILLIMAN'S JOURNAL for January 1831, he would have learned that in a long circuit the electro-magnet had to be wound with a long and fine wire in order to be effective.
It is probably more correct to conclude that these magnetic actions are propagated through space not by special magnetic atmospheres, but by there being movements and pressures and tensions in the ether which is believed to pervade all space as a very thin medium more attenuated than the lightest gas, and which when subjected to electro-magnetic forces assumes a peculiar state, and gives rise to the actions which have been detailed in the preceding paragraphs.
This morning he is found dead and the final plans of the gun are gone!" Kennedy and Burke were standing mutely looking at each other. "Who is in the next room?" whispered Burke hoarsely, recollecting Kennedy's caution of silence. Kennedy did not reply immediately. He was evidently much excited by Burke's news of the wonderful electro-magnetic gun.
I have been so constantly under the necessity of watching the movements of the most unprincipled set of pirates I have ever known, that all my time has been occupied in defense, in putting evidence into something like legal shape that I am the inventor of the Electro-Magnetic Telegraph!! Would you have believed it ten years ago that a question could be raised on that subject?
One fact, however, should ever be kept in mind: Whatever may be the extent of the superstructure of electrical science, it is all built upon the foundation of electro-magnetic induction laid by Michael Faraday. The little "magnetic spark" he first produced, and the trembling of his galvanometer-needle, were but signals of the birth of the giant of the century.
I am told every hour that the two great wonders of Paris just now, about which everybody is conversing, are Daguerre's wonderful results in fixing permanently the image of the camera obscura, and Morse's Electro-Magnetic Telegraph, and they do not hesitate to add that, beautiful as are the results of Daguerre's experiments, the invention of the Electro-Magnetic Telegraph is that which will surpass, in the greatness of the revolution to be effected, all other inventions.
The discovery that the magnetic needle is affected by the Aurora, quivering and darting about in a state of extraordinary excitement when the lights are playing in the sky, only added to the mystery of the phenomenon until its electro-magnetic nature had been established.
At the end of the century we are clamoring for penny postage, and our delivery is free. Then they had to pay the carrier. The electro-magnetic telegraph was coming in for its share of attention. Scientific people were dropping into the old University of New York, where Mr. Morse was working it. The city had been connected with Washington.
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