Edison: His Life and Inventions (Google eBook)

Front Cover
Harper & Brothers, 1910 - Inventors
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Contents

I
1
II
9
III
23
IV
48
V
65
VI
98
VII
114
VIII
139
XI
234
XII
267
XIII
299
XIV
318
XV
347
XVI
384
XVII
417
XVIII
448

IX
170
X
203

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Page 210 - There was a little girl Who had a little curl Right in the middle of her forehead When she was good, she was very, very good And when she was bad, she was HORRID.
Page 194 - In a similar manner, it is conceivable that cables of telephone wires could be laid underground, or suspended overhead, communicating by branch wires with private dwellings, country houses, shops, manufactories, etc., etc., uniting them through the main cable with a central office where the wires could be connected as desired, establishing direct communication between any two places in the city.
Page 346 - Presidents of the American Society of Civil Engineers, the American Institute of Mining Engineers, the American Society of Mechanical Engineers, the American Society of...
Page 178 - The method of, and apparatus for, transmitting vocal or other sounds telegraphically, as herein described, by causing electrical undulations, similar in form to the vibrations of the air accompanying the said vocal or other sounds, substantially as set forth.
Page 216 - Letter writing and all kinds of dictation without the aid of a stenographer. 2. Phonographic books, which will speak to blind people without effort on their part. 3. The teaching of elocution. 4. Reproduction of music. 5. The 'Family Record...
Page 171 - Suppose that a man speaks near a movable disk, sufficiently flexible to lose none of the vibrations of the voice, that this disk alternately makes and breaks the currents from a battery : you may have at a distance another disk, which will simultaneously execute the same vibrations.
Page 30 - I got permission from my mother to go on the local train as a newsboy. The local train from Port Huron to Detroit, a distance of sixty-three miles, left at 7 AM and arrived again at 9.30 PM After being on the train for several months...
Page 171 - We know that sounds are made by vibrations and are made sensible to the ear by the same vibrations, which are reproduced by the intervening medium. But the intensity of the vibrations diminishes very rapidly with the distance, so that even with the aid of speaking tubes and trumpets it is impossible to exceed somewhat narrow limits.
Page 99 - salt' the new man. I sat down unsuspiciously at the table, and the New York man started slowly. Soon he increased his speed, to which I easily adapted my pace. This put my rival on his mettle, and he put on his best powers, which, however, were soon reached. "At this point I happened to look up, and saw the operators all looking over my shoulder, with their faces shining with fun and excitement. I knew then that they were trying to put up a job on me, but kept my own counsel. "The New York man then...
Page 36 - Twenty-five cents apiece, gentlemen! I haven't enough to go around!' I sold all out, and made what to me then was an immense sum of money.

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