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The Great Events by Famous Historians [Volumes 1-14]

Электронная книга - «The Great Events by Famous Historians [Volumes 1-14]». Краткое содержание книги:

Антология содержит:
The Great Events by Famous Historians, Volume 01
The Great Events by Famous Historians, Volume 02 / (From the Rise of Greece to the Christian Era)
The Great Events by Famous Historians, Volume 03
The Great Events by Famous Historians, Volume 04
The Great Events by Famous Historians, Volume 05 / (From Charlemagne to Frederick Barbarossa)
The Great Events by Famous Historians, Volume 06 / (From Barbarossa to Dante)
The Great Events by Famous Historians, Volume 07
The Great Events by Famous Historians, Volume 08 / The Later Renaissance: from Gutenberg to the Reformation
The Great Events by Famous Historians, Volume 09
The Great Events by Famous Historians, Volume 10
The Great Events by Famous Historians, Volume 11
The Great Events by Famous Historians, Volume 12
The Great Events by Famous Historians, Volume 13
The Great Events by Famous Historians, Volume 14
The Great Events by Famous Historians, Volume 17
The Great Events by Famous Historians, Volume 21 / The Recent Days (1910-1914)
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"By these experiments Franklin's theory was established in the most convincing manner.

"Besides these great principles Franklin's letters on electricity contain a number of facts and hints which have contributed greatly toward reducing this branch of knowledge to a science. His friend, Mr. Kinnersley, communicated to him a discovery of the different kinds of electricity excited by rubbing glass and sulphur. This was first observed by M. du Faye, but it was for many years neglected. The philosophers were disposed to account for the phenomena rather from a difference in the quantity of electricity collected, and even Du Faye himself seems to have at last adopted this doctrine. Franklin at first entertained the same idea, but upon repeating the experiments he perceived that Mr. Kinnersley was right, and that the vitreous and resinous electricity of Du Faye were nothing more than the positive and negative states, which he had before observed, and that the glass globe charged positively, or increased, the quantity of electricity on the prime conductor, while the globe of sulphur diminished its natural quantity, or charged negatively. These experiments and observations opened a new field for investigation, upon which electricians entered with avidity; and their labors have added much to the stock of our knowledge.

"Franklin's letters have been translated into most of the European languages, and into Latin. In proportion as they have become known, his principles have been adopted."

In speaking of the first publication of his papers on electricity, Franklin himself says: "Obliged as we were to Mr. Collinson for the present of the tube, etc., I thought it right he should be informed of our success in using it, and wrote him several letters containing accounts of our experiments. He got them read in the Royal Society, where they were at first not thought worth so much notice as to be printed in their Transactions. One paper, which I wrote to Mr. Kinnersley, on the sameness of lightning with electricity, I sent to Mr. Mitchel, an acquaintance of mine, and one of the members also of that society, who wrote me word that it had been read, but was laughed at by the connoisseurs. The papers, however, being shown to Dr. Fothergill, he thought them of too much value to be stifled, and advised the printing of them. Mr. Collinson then gave them to Cave for publication in his Gentleman's Magazine, but he chose to print them separately in a pamphlet, and Dr. Fothergill wrote the preface. Cave, it seemed, judged rightly for his profession, for by the additions that arrived afterward they swelled to a quarto volume, which has had five editions and cost him nothing for copy-money."

The following is an extract from the preface to the first edition of the pamphlet published by Cave, as above mentioned:

"It may be necessary to acquaint the reader that the following observations and experiments were not drawn up with the view to their being made public, but were communicated at different times, and most of them in letters, written on various topics, as matter only of private amusement.

"But some persons to whom they were read, and who had themselves been conversant in electrical disquisitions, were of opinion they contained so many curious and interesting particulars relative to this affair, that it would be doing a kind of injustice to the public to confine them solely to the limits of a private acquaintance.

"The editor was therefore prevailed upon to commit such extracts of letters and other detached pieces as were in his hands to the press, without waiting for the ingenious author's permission so to do; and this was done with the less hesitation, as it was apprehended the author's engagements in other affairs would scarce afford him leisure to give the public his reflections and experiments on the subject, finished with that care and precision of which the treatise before us shows he is alike studious and capable."

Dr. Priestley, in his History of Electricity, published in the year 1767, gives a full account of Franklin's experiments and discoveries.

"Nothing was ever written upon the subject of electricity," he says, "which was more generally read and admired in all parts of Europe than these letters. There is hardly any European language into which they have not been translated; and, as if this were not sufficient to make them properly known, a translation of them has lately been made into Latin. It is not easy to say whether we are most pleased with the simplicity and perspicuity with which these letters are written, the modesty with which the author proposes every hypothesis of his own, or the noble frankness with which he relates his mistakes, when they were corrected by subsequent experiments.

"Though the English have not been backward in acknowledging the great merit of this philosopher, he has had the singular good-fortune to be, perhaps, even more celebrated abroad than at home; so that, to form a just idea of the great and deserved reputation of Dr. Franklin, we must read the foreign publications on the subject of electricity, in many of which the terms Franklinism,' 'Franklinist,' and the 'Franklinian System' occur in almost every page. In consequence of this, Dr. Franklin's principles bid fair to be handed down to posterity as equally expressive of the true principles of electricity, as the Newtonian philosophy is of the system of nature in general."

The observations and theories of Franklin met with high favor in France, where his experiments were repeated and the results verified to the admiration of the scientific world. In the year 1753 his friend Peter Collinson wrote to him from London: "The King of France strictly commands the Abbé Mazéas to write a letter in the politest terms to the Royal Society, to return the King's thanks and compliments, in an express manner, to Mr. Franklin, of Pennsylvania, for his useful discoveries in electricity, and the application of pointed rods to prevent the terrible effect of thunder-storms." And the same Mr. Collinson wrote as follows to the Reverend Jared Eliot, of Connecticut, in a letter dated London, November 22, 1753: "Our friend Franklin will be honored on St. Andrew's Day, the 30th instant, the anniversary of the Royal Society, when the Right Honorable the Earl of Macclesfield will make an oration on Mr. Franklin's new discoveries in electricity, and, as a reward and encouragement, will bestow on him a gold medal." This ceremony accordingly took place, and the medal was conferred.

"Philadelphia, 28 Mch., 1747.

"To Peter Collinson:

"Sir—Your kind present of an electric tube, with directions for using it, has put several of us on making electrical experiments, in which we have observed some particular phenomena that we look upon to be new. I shall therefore communicate them to you in my next, though possibly they may not be new to you, as among the numbers daily employed in those experiments on your side of the water, it is probable some one or other has hit upon the same observations. For my own part, I never was before engaged in any study that so totally engrossed my attention and my time as this has lately done; for what with making experiments when I can be alone, and repeating them to my friends and acquaintance, who, from the novelty of the thing, come continually in crowds to see them, I have, during some months past, had little leisure for anything else.            I am, etc.,

"B. Franklin."

"Philadelphia, 11 July, 1747.

"To Peter Collinson:

"Sir—In my last I informed you that in pursuing our electrical inquiries we had observed some particular phenomena which we looked upon to be new, and of which I promised to give you some account, though I apprehended they might not possibly be new to you, as so many hands are daily employed in electrical experiments on your side of the water, some or other of which would probably hit on the same observations.

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