Telegraphic Tales and Telegraphic HistoryW. J. Johnston, 1880 - 254 Seiten |
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afterward Alfred Vail alphabet apparatus armature army Atlantic cable Baltimore battery bell boys cash cent chief operator cipher cipher operators circuit communication conductor connected constructed Cornell dispatch distance dollars electric current electric light electric telegraph electro-magnet employed engine England experiment Faremont Fortress Monroe frictional electricity galvanic galvanometer gentleman girl graph hand hour human voice hundred instrument insulated invention inventor letter Leyden jar locomotive machine magnetic telegraph means ment messenger miles Military Telegraph minutes morning needle night ocean passed poles Potomac practical Professor Henry Professor Morse railroad received reports Richard O'Brien Samuel F. B. Morse San Francisco says sent signal Smith soon sound station steam Stearns story tele telegram Telegraph Company telegraph line telegraph office telegraph operator telephone thousand tion told train transmitted Vail war department Washington Western Union wire words York
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Seite 8 - Make a small cross of two light strips of cedar, the arms so long as to reach to the four corners of a large thin silk handkerchief when extended; tie the corners of the handkerchief to the extremities of the cross, so you have the body of a kite; which being properly accommodated with a tail, loop, and string, will rise in the air, like those made of paper; but this being of silk, is fitter to bear the wet and wind of a thunder-gust without tearing.
Seite 9 - This kite is to be raised when a thundergust appears to be coming on, and the person who holds the string must stand within a door or window or under some cover, so that the silk ribbon may not be wet; and care must be taken that the twine does not touch the frame of the door or window.
Seite 4 - Upon their separating from one another into distant countries, they agreed to withdraw themselves punctually into their closets at a certain hour of the day, and to converse with one another by means of this their invention. Accordingly when they were some hundred miles asunder, each of them shut himself up in his closet at the time appointed, and immediately cast his eye upon his dial-plate.
Seite 3 - Strada, in one of his prolusions, gives an account of a chimerical correspondence between two friends by the help of a certain loadstone, which had such a virtue in it, that if it touched two several needles, when one of the needles so touched began to move, the other, though at never so great a distance, moved at the same time, and in the same manner.
Seite 8 - As frequent mention is made in public papers from Europe of the success of the Philadelphia experiment for drawing the electric fire from clouds by means of pointed rods of iron erected on high buildings...
Seite 168 - ... the enterprise was fixed for the year 1865. In January of that year however occurred the disastrous fire which so seriously embarrassed the labors of the Smithsonian Institution for several following years: it became necessary to indefinitely postpone this meteorological work, which indeed had through its whole history been carried on with most limited financial means, and was quite dependent upon the liberal cooperation of the different telegraph companies. It will thus be seen that without...
Seite 4 - If he had a mind to write any thing to his friend, he directed his needle to every letter that formed the words which he had occasion for, making a little pause at the end of every word or sentence, to avoid confusion.
Seite 11 - You write two or three words on a paper ; he takes it with him into a room, and turns a machine enclosed in a cylindrical case, at the top of which is an electrometer, a small fine pith ball : a wire connects with a similar cylinder and electrometer in a distant apartment, and his wife by remarking the corresponding motions of the ball, writes down the words they indicate, from which it appears that he has formed an alphabet of motions. As the length of the wire makes no difference in the effect,...
Seite 160 - The duties of the enlisted men at each station are as follows: At stations forwarding telegraphic reports they are required to take, put in cipher, and furnish, to be telegraphed tri-daily on each day, at different fixed times, the results of observations made at those times, and embracing, in each case, the readings of the barometer, the thermometer, the wind-velocity and direction, the rain-gauge, the relative humidity, the character, quantity, and movement of upper and lower clouds, and the condition...
Seite 166 - As a part of the system of meteorology, it is proposed to employ,, as far as our funds will permit, the magnetic telegraph in the investigation of atmospherical phenomena. * * * The advantage to agriculture and commerce to be derived from a knowledge of the approach of a storm by means of the telegraph has been frequently referred to of late iu the public journals ; and this we think is a subject deserving the attention of the Government.