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LE trésor DU LABYRINTHE
1946 1946. 5 CAMILLE BELL - LE TRÉSOR DU LABYRINTHE / 1946
Etat correct
"BELL, ALEXANDRE (ALEXANDER) GRAHAM. - BELL, ALEXANDER GRAHAM. - ""THE GREATEST INVENTION I HAVE EVER MADE"": THE PHOTOPHONE.
Reference : 48149
(1880)
De la Production et de la Reproduction du Son par la Lumière. Mémoire lu à l'Association américaine pour l'avancement des Sciences, au Congrès de Boston, le 27 août 1880. (+) Les Récepteurs photophoniques de Sélénium. (Cette Note fait suite au M´wem...
Paris, G. Masson, 1880. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", 5e Series, Tome 21. 576 pp. and 2 folded engraved plates. (Entire volume offered). Bell's paper: 399-430. With 11 fine textillustrations (showing the apparatus). Clean and fine.
First French version of ""On the Production and Reproduction of Sound by Light"" (the French version published in November and the English in October 1880) of this importent paper in which Bell describes his and Charles Sumner Tainter's, his assistent, invention of the Photophone or Radiophone, THE PROGENITOR OF MODERN FIBER OPTICS. This invention made possible the world's FIRST WIRELESS TELEPHONE MESSAGE, and the first call was sent from the Franklin Scool to the window of Bell's laboratory, some 213 meter away.Also with Breguet's importent paper on the Selenium used in the technology.""On June 3, 1880, Alexander Graham Bell transmitted the first wireless telephone message on his newly invented ""photophone."" Bell believed the photophone was his most important invention. The device allowed for the transmission of sound on a beam of light. Of the eighteen patents granted in Bell's name alone, and the twelve he shared with his collaborators, four were for the photophone. Bell's photophone worked by projecting voice through an instrument toward a mirror. Vibrations in the voice caused similar vibrations in the mirror. Bell directed sunlight into the mirror, which captured and projected the mirror's vibrations. The vibrations were transformed back into sound at the receiving end of the projection. The photophone functioned similarly to the telephone, except the photophone used light as a means of projecting the information, while the telephone relied on electricity."" (Mary Bellis).The first successful attempts were based upon the properties of selenium: ""The electric resistance of which varies with the degree of illumination to which it is exposed. Hence, given a transmitting instrument, such as a flexible mirror, by which the vibrations of a sound could throw into vibrations a beam of light, a receiver, consisting of sensitive selenium, forming part of an electric circuit with a battery and a telephone, should suffice to translate the varying intensities of light into corresponding varying intensities of electric current, and finally into vibrations of the telephone disk audible once more as sound."" (Prescott, George. Bell's Electric Speaking Telephone. 313 p.).
"BELL, ALEXANDER GRAHAM. - ""THE GREATEST INVENTION I HAVE EVER MADE"": THE PHOTOPHONE.
Reference : 46951
(1880)
On the Production and Reproduction of Sound by Light. (Read before the American Association for the Advancement of Science, in Boston, August 27, 1880).
(New Haven), 1880. 8vo. Modern plain wrappers. In: American Journal of Science"", Third series, Vol. XX, No. 118, October 1880. Frontispiece-plate. Pp. 257-352 (entire issue offered). Bell's paper: pp. 305-324 and 11 textillustrations. A small stamp to verso of plate and the first leaf.
First printing of this important paper in which Bell describes his and Charles Sumner Tainter's, his assistent, invention of the Photophone or Radiophone, THE PROGENITOR OF MODERN FIBER OPTICS. This invention made possible the world's FIRST WIRELESS TELEPHONE MESSAGE, and the first call was sent from the Franklin Scool to the window of Bell's laboratory, some 213 meter away.""On June 3, 1880, Alexander Graham Bell transmitted the first wireless telephone message on his newly invented ""photophone."" Bell believed the photophone was his most important invention. The device allowed for the transmission of sound on a beam of light. Of the eighteen patents granted in Bell's name alone, and the twelve he shared with his collaborators, four were for the photophone. Bell's photophone worked by projecting voice through an instrument toward a mirror. Vibrations in the voice caused similar vibrations in the mirror. Bell directed sunlight into the mirror, which captured and projected the mirror's vibrations. The vibrations were transformed back into sound at the receiving end of the projection. The photophone functioned similarly to the telephone, except the photophone used light as a means of projecting the information, while the telephone relied on electricity."" (Mary Bellis).The first successful attempts were based upon the properties of selenium: ""The electric resistance of which varies with the degree of illumination to which it is exposed. Hence, given a transmitting instrument, such as a flexible mirror, by which the vibrations of a sound could throw into vibrations a beam of light, a receiver, consisting of sensitive selenium, forming part of an electric circuit with a battery and a telephone, should suffice to translate the varying intensities of light into corresponding varying intensities of electric current, and finally into vibrations of the telephone disk audible once more as sound."" (Prescott, George. Bell's Electric Speaking Telephone. 313 p.).
De la production du son par l'energie radiante. - [FIRST FRENCH PUBLICATION OF BELL'S PHOTOPHONE]
Paris, Imprimerie Gauthier-Villars, 1881. 8vo. Contemporary half calf, raised bands, gilt spine. Light wear along edges. Two small stamps on verso of title-page, and one on verso of last plate. In ""Annales de Chimie et de Physique"", Cinquiéme Series - Tome XXIII. 576 pp. + 3 plates. G. Bell's paper: pp. 397-432, pp. and 14 figures of experimental apparatus etc. The entiree volume offered. Fine and clean copy.
First publication of the first French translation of Bell's ""On the Production and Reproduction of Sound by Light: the Photophone"", originally published in 1880. The device allowed for the transmission of sound on a beam of light, and Bell himself regarded this, not the telephone, to be his most important invention.""In the importance of the principles involved, I regard the photophone as the greatest invention I have ever made"" greater than the telephone."" Bell said in a 1921 interview. The photophone was the world's first wireless telephone communication and thereby anticipated Marconi's invention with several years.The first successful attempts were based upon the properties of selenium: ""The electric resistance of which varies with the degree of illumination to which it is exposed. Hence, given a transmitting instrument, such as a flexible mirror, by which the vibrations of a sound could throw into vibrations a beam of light, a receiver, consisting of sensitive selenium, forming part of an electric circuit with a battery and a telephone, should suffice to translate the varying intensities of light into corresponding varying intensities of electric current, and finally into vibrations of the telephone disk audible once more as sound."" (Prescott, George. Bell's Electric Speaking Telephone. 313 p.).Bell was so excited by his invention and its possibilities that he proposed that his second daughter should bear the name of the invention: Photophone. Fortunately for her, her mother was not quite as enthusiastic about the invention.
Rendez-vous sous la neige
HARLEQUIN 2023 160 pages 1x17x11cm. 2023. pocket_book. 160 pages.
Bon état
Traité pratique du transport de l'énergie par l'électricité
1905 1905.
Très bon état - légères marques de lecture et/ou de stockage mais du reste en très bon état- expédié soigneusement depuis la France
Fleurs Séchées Bouquets & Compositions
France loisirs 2000 160 pages in4. 2000. Cartonné. 160 pages.
French édition - excellent état d'ensemble - envoi rapide et soigné dans une enveloppe à bulle depuis France
Découvrir l'amour par l'astrologie
Editions ESI 2011 159 pages 21x15x2cm. 2011. Broché. 159 pages.
French édition - L'article présente des petites marques de stockage et/ou de lecture sur la couverture et/ou la tranche mais du reste en très bon état d'ensemble- Envoi rapide et soigné dans une enveloppe à bulle depuis France
Xxl
Editions Milan 2004 285 pages 20x13x2cm. 2004. Poche. 285 pages.
French édition - Le livre présente des marques de stockage et/ou de lecture sur la couverture et/ou les pourtours mais du reste en très bon état d'ensemble. Expédié soigneusement dans un emballage adapté depuis la France
Xxl
Editions Milan 2004 285 pages 20x13x2cm. 2004. Poche. 285 pages. Chaque maison cache un secret les murs ont des oreilles mais la bouche cousue. Il faut poser longtemps la joue contre leur sein comme un docteur fiévreux pour les entendre respirer. A Dun-le-Palestel dans la Creuse la maison de famille du narrateur en a si gros sur le c?ur et tant à dire qu'on va la confesser pièce après pièce l'écouter se raconter souvenirs dérangés vérités arrangées les choses et les gens tels qu'ils furent les échos et les ombres qu'il en reste. Elle finira bien par lâcher cequ'elle sait. Elle sait l'histoire d'un père qui lui avait choisi de se taire
livre de bibliothèque recyclé avec étiquette sur dos de couverture et plastifié - l'article présente légères marques plis de lecture et/ou de stockage mais du reste en bon état. Envoi rapide et soigné dans enveloppe à bulles depuis France
