By Edmund T Whittaker
Read Online or Download A History of the Theories of Aether and Electricity -From The Age of Descart PDF
Similar history books
In this riveting account of old and archaeological research, the authors current demanding proof that the Sphinx, the Pyramids, and the opposite monuments at Giza are of way more historical starting place than formerly believed. whole with facts of a conspiracy among the Egyptology institution and diverse private organisations to maintain the secrets and techniques of the Pyramids from the realm, The Message of the Sphinx is usually a modern day detective tale. of pictures.
Fakes, frauds, and phonies. appears like a publication choked with criminals and delinquents, doesn’t it? good, it’s no longer. a few of the greatest names in historical past are available among those pages—and the sunshine isn’t flattering. (We’re you, George “I must never inform a lie” Washington.
From the acclaimed, best-selling writer Adam Hochschild, a sweeping background of the Spanish Civil conflict, advised via a dozen characters, together with Ernest Hemingway and George Orwell: a tale of idealism, heartbreaking agony, and a noble reason that failed
for 3 the most important years within the Nineteen Thirties, the Spanish Civil struggle ruled headlines in the United States and all over the world, as volunteers flooded to Spain to assist its democratic executive struggle off a fascist rebellion led by means of Francisco Franco and aided via Hitler and Mussolini. this day we're acquainted with remembering the battle via Hemingway’s For Whom the Bell Tolls and Robert Capa’s photos. yet Adam Hochschild has came across a few much less accepted but way more compelling characters who exhibit the whole tragedy and significance of the struggle: a fiery nineteen-year-old Kentucky lady who went to wartime Spain on her honeymoon, a Swarthmore collage senior who used to be the 1st American casualty within the conflict for Madrid, a couple of fiercely partisan, rivalrous New York instances journalists who coated the battle from opposites aspects, and a swashbuckling Texas oilman with Nazi sympathies who offered Franco just about all his oil — at decreased costs, and on credits. It was once in lots of methods the outlet conflict of worldwide battle II, and we nonetheless have a lot to benefit from it. Spain in Our Hearts is Adam Hochschild at his absolute best.
- Double Entry: How the Merchants of Venice Created Modern Finance
- Stalin's Children: Three Generations of Love, War, and Survival
- Who Was Jesus? (Who Was...?)
- Brazil (BFI Film Classics)
- Studies in Revolution
Additional resources for A History of the Theories of Aether and Electricity -From The Age of Descart
464. ; 1734, pp. 341, 40 Electric He and Magnetic found, in fact, that electrified when Science gold-leaf which had been by contact with excited glass was brought near to an excited piece of copal,* an attraction was manifested between " " I had expected," he writes, them. " repelled Proceeding with his experiments he found that the gold-leaf, when and repelled by glass, was attracted by all electrified resinous substances, and that when repelled by the " latter it was attracted by the glass.
1663), who had given to the phein straight lines, but that there is nomenon the name diffraction. Hooke's theoretical investigations on light were of great importance, representing as they do the transition from the Cartesian system to the fully developed theory of undulations. He begins by attacking Descartes' proposition, that light is a " There is," tendency to motion rather than an actual motion. g. the diamond when rubbed or heated in the dark) shine for a considerable time without being ; is in motion is not perand that the motion must therefore manently body, be of a to-and-fro or vibratory character.
Descartes' theory therefore held the field until the publication in 1667 of the Micrographics * written at Toulouse in August, 1657, to Monsieur de la reprinted in (Euvres de Fermat (ed. 1891), ii, p. 354. t That reflected light follows the shortest path was no new result, for it had Epist. cua rwv OTTTIKUHT of Heliodorns of Larissa, a work of which several editions were published in the seventeenth, century. written at Toulouse on Jan. J Epist. XLIII, Fermat, ii, p. 457 ; i, The imprimatur 1, 1662 ; reprinted in (Euvres de pp.