isis unveiled: chapter v (one common origin)

“A long conversation has taken place between Boston and Cambridgeport by telegraph; “every word being distinctly heard and perfectly understood, and the modulations of voices being quite distinguishable”, according to the official report.

 
The voice is seized upon, so to say, and held in form by a magnet, and sound-wave transmitted by electricity acting in unison and cooperating with the magnet. The whole success depends upon a perfect control of the electric currents and the power of the magnets used, with which the former must cooperate.

 
“The invention”, reports the paper, “may be rudely described as a sort of trumpet, over the bell-mouth of which is drawn a delicate membrane, which, when the voice is thrown into the tube, swells outward in proportion to the force of the sound-wave.

 
To the outer side of the membrane is attached a piece of metal, which, as the membrane swells outward, connects with a magnet, and this, with the electric circuit, is controlled by the operator.

 
By some principle, not yet fully understood, the electric current transmits the sound-wave just as delivered by the voice in the trumpet, and the listener at the other end of the line, with a twin or facsimile trumpet at his ear, hears every word distinctly, and readily detects the modulations of the speaker’s voice.

 
Thus, in the presence of such wonderful discoveries of our age, and the further magical possibilities lying latent and yet undiscovered in the boundless realm of nature, and further, in view of the great probability that Edison’s Force and Professor Graham Bell’s Telephone may unsettle, if not utterly upset all our ideas of the imponderable fluids, would it not be well for such persons as may be tempted to traverse our statements, to wait and see whether they will be corroborated or refuted by further discoveries.”

 
H. P. Blavatsky

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