Edison: His Life and Inventions, Volume 1

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Harper & Brothers, 1910 - 998 páginas
 

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Passagens conhecidas

Página 206 - 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.
Página 190 - 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.
Página 174 - 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.
Página 167 - 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.
Página 212 - Family Record"— a registry of sayings, reminiscences, etc., by members of a family in their own voices, and of the last words of dying persons. 6.
Página 34 - 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.
Página 167 - 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.
Página 314 - The Edison system of lighting was as beautifully conceived down to the very details, and as thoroughly worked out as if it had been tested for decades in various towns. Neither sockets, switches, fuses, lamp-holders...
Página 95 - I replied. I was then told to return at 5.30 PM , and punctually at that hour I entered the main operating-room and was introduced to the night manager. The weather being cold, and being clothed poorly, my peculiar appearance caused much mirth, and, as I afterward learned, the night operators had consulted together how they might 'put up a job on the jay from the woolly West.
Página 274 - He was just as likely to be at work in his laboratory at midnight as at midday. He cared not for the hours of the day or the days of the week. If he were exhausted he might more likely be asleep in the middle of the day than in the middle of the night, as most of his work in the way of inventions was done at night. I used to run his office on as close business methods as my experience admitted ; and I would get at him whenever it suited his convenience.

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