The principles of electric wave telegraphy (Google eBook)

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New York, 1910 - Technology & Engineering - 906 pages
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Page 339 - That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into it.
Page 867 - If a justice of the peace is satisfied by information on oath that there is reasonable ground for suspecting that an offence under this Act...
Page 878 - June, one thousand nine hundred and nineteen, in a single copy which will remain deposited in the archives of the French Republic, and of which authenticated copies will be transmitted to each of the Signatory Powers.
Page 515 - ... simpler and more certain means of generating electrical rays of any desired wave-length, from the shortest, say of a few feet in length, which will easily pass through buildings and fogs, to those long waves, whose lengths are measured by tens, hundreds, and thousands of miles; secondly, more delicate receivers, which will respond to wave-lengths between certain defined limits, and be silent to all others ; thirdly, means of darting the sheaf of rays in any desired direction...
Page 440 - ... good. There seems no doubt then that birds of many species have well developed navigational powers, being able not only to perform the rather more simple bearing and distance type of orientation but also to find their way back from territory which they have not previously visited. We must now look at some of the theories which have been put forward to account for this facility which has puzzled man, envious in the knowledge of his own blundering around the earth's surface, when he is unaided...
Page 224 - Standard deviation is a measure of dispersion in a frequency distribution equal to the square root of the mean of the squares of the deviations from the arithmetic mean of the distribution.
Page 871 - Article 1, and also of all data, necessary to facilitate and accelerate the exchange of radiograms, as specified in the regulations. ARTICLE 7 Each of the high contracting parties reserves the right to prescribe or permit at the stations referred to in Article 1, apart from the installation the data of which are to be published in conformity with Article 6, the installation and working of other devices for the purpose of establishing special...
Page 873 - Any radiogram proceeding from a station on shipboard and received by a coastal station of a contracting country, or accepted in transit by the administration of a contracting country, shall be forwarded. Any...
Page 515 - This is no mere dream of a visionary philosopher. All the requisites needed to bring it within grasp of daily life are well within the possibilities of discovery, and are so reasonable and so clearly in the path of researches which are now being actively prosecuted in every capital of Europe that we may any day expect to hear that they have emerged from the realms of speculation to those of sober fact.5 If Crookes...
Page 514 - Here is unfolded to us a new and astonishing world — one which it is hard to conceive should contain no possibilities of transmitting and receiving intelligence. Rays of light will not pierce through a wall, nor, as we know only too well, through a London fog. But the electrical vibrations of a yard or more in wave-length of which I have spoken will easily pierce such mediums, which to them will be transparent. Here, then, is revealed the bewildering possibility of telegraphy without wires, posts,...

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