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I'll use an alternating current on the third wire, and see if that makes it any better. And I'll put in the most sensitive selenium plate I can make. I'm going to have this thing a success." Tom carefully examined the drawings of his invention, at which papers Mr. Boylan had confessed to looking.
The result is that the low voltage direct current of the battery is changed into alternating currents whose frequency is precisely that of the spring vibrator, but while the frequency of the currents is low their potential, or voltage, is enormously increased. What Ratio of Transformation Means.
When the current from the battery flows through the primary coil it magnetizes the soft iron core and as the microphone varies the strength of the current the high voltage alternating currents set up in the secondary coil of the induction coil are likewise varied, when they are impressed upon and modulate the oscillating currents. The Microphone Transformer.
We may take at random, if you choose any of the many experiments which may be performed with alternating currents; a few of which only, and by no means the most striking, form the subject of this evening's demonstration: they are all equally interesting, equally inciting to thought. Here is a simple glass tube from which the air has been partially exhausted.
I say nothing of the tendency in an Irish government, awkwardly alternating with that to which I have just adverted, to look over the heads of the people of Ireland, and to consider mainly what will be thought by the ignorant public in England. But these sources of incessant perturbation must not be left out. The fault of Irish centralization is not that it is strong, but that it is weak.
An attempt at regularity, and possibly at decorative effect, is apparent in the use of courses of fairly uniform thickness, alternating with other courses or belts composed of small thin fragments. Beautiful examples of masonry constructed on this method occur in the Chaco ruins, but here, while the method was known, the execution was careless or faulty.
Thus far I have applied the repulsive action described in the construction of alternating current indicators, alternating current arc lamps, regulating devices for alternating currents, and to rotary motors for such currents.
Inflation and uncertainty in values, whether in stocks or real estate, alternating with the return of prosperity, seem to have marked the commercial and financial history of this country during the last fifty years, more than that of any other nation under the sun, and given rise to the spirit of extravagant speculations, both disgraceful and ruinous. Equally remarkable were Mr.
The route of the two horsemen lay through alternating swamp and grassland, and as the path was not much traversed, bush tangles here and there almost blocked the way. They had no misgiving as they rode, and expected to be soon with Inspector Dicken. The lower end of the gulch was not so cheerful as that portion where they had entered.
I recognize it, and that to this the streamlets flow, thence pours the flood. But what was the plain truth? She had brought herself to think she ought to sacrifice herself to Tinman, and her evasions with Herbert, manifested in tricks of coldness alternating with tones of regret, ended, as they had commenced, in a mysterious half-sullenness. She had hardly a word to say.
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