Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . es and trumpets, impossible to exceed somewhatnarrow limits. Suppose that a man speaks near a movable disk, sufficientlyflexible to lose none of the vibrations of the voice, that this disk alternatelymakes and breaks the current from a battery, you may have at a distanceanother disk, which will a
Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . es and trumpets, impossible to exceed somewhatnarrow limits. Suppose that a man speaks near a movable disk, sufficientlyflexible to lose none of the vibrations of the voice, that this disk alternatelymakes and breaks the current from a battery, you may have at a distanceanother disk, which will at the same time execute the same vibrations. Bourseul further showed that the sounds of the voice thus reproducedwould have the same pitch, but admitted that, in the then present state ofacoustic science, it could not be affirmed that the syllables uttered by thehuman voice could be so reproduced, since nothing was known of them,except that some were uttered by the teeth, others by the lips, and so status of the telephone then, according to Bourseul, was that voice couldbe reproduced at a distance at the pitch of the speaker, but that somethingmore was needed to transmit the delicate and varied intonations of humanspeech when it was broken into syllables and utterances. To transmit sim-. THOMAS ALVA EDISON. WONDERS OF ELECTRICITY 33 ply voice was one thing; to transmit the timbre or quality of speech wasanother. Bourseul made plain the problem that was still before the now Comes one of the most remarkable episodes in the history of elec-tricity, — a chapter of mingled shame and glory. In the village of EberlysMills, Cumberland County, Pa., lived a genius by the name of Daniel Draw-baugh, who had made a study of telephony up to the very point Bourseulhad left it. He had transmitted musical sound, sound of the voice, and othersounds in the same pitch. He had said that this was all that could be donetill some means was discovered of holding up the constan
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Keywords: ., bookcentury1800, bookdecade1890, bookidtri, booksubjectinventions
