‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCXXXIV (1734). Tirées des registres de l’Académie Royale des Sciences.‎

‎1738 2 volumes (complete). [14], 156, 813, [1] p., num. figures and engraved plates, engraved frontispiece depicting Athena holding a portrait of Louis XV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-pages. Published by Pierre Mortier, Amsterdam.Includes papers by: Manfredi, Methode de vérifier la figure de la terre par les parallaxes de la lune (27 p., 2 folded pls) / Maupertuis, Sur les figures des corps célestes (64 p., 9 figs) / d’Onsen-Bray, Anémometre qui marque de lui-même sur papier, non seulement les vents qu’il a fait pendant les 24 heures... mais aussi leurs differentes vitesses ou forces relatives (17 p., 6 folded pls) / De la Condamine, Recherches sur le Tour. Premier / Second mémoire (61, 63 p., 9, 6 pls) / Du Fay, Cinquieme / Sixieme mémoire sur l’électricité (29, 34 p.) / Winslow, Remarques sur les Monstres. 2de partie (53 p., 8 folded pls) / and numerous other papers by Petit, Lemery, Clairaut, Boerhaave, Godin, Mairan, Bouguer, Du Hamel & Grosse, Cassini, De Reaumur, Maraldi...‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCXXXV (1735). Tirées des registres de l’Académie Royale des Sciences.‎

‎1739 2 volumes (complete). [18], 151, 778, [2] p., num. figures and engraved plates, engraved frontispiece depicting Athena holding a portrait of Louis XV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-pages. Some offset of frontispiece on title-page and on some pages. One joint weak. Published by Pierre Mortier, Amsterdam.Includes papers by: De la Condamine, Maniere de déterminer astronomiquement la différence en longitude de deux lieux peu éloignés l’un de l’autre (15 p.) / Hellot, Analyse chimique du Zinc. Ier / 2e Mémoire (28, 31 p.) / Cassini, Méthode pour déterminer si la terre est sphérique ou non.... (23 p., 1 folded plate) / Maupertuis, Sur la figure de la terre (11 p.) / Petit, Description anatomique sur loeuil du Coq d’Inde (43 p., 4 folded pls) / Cassini, Seconde méthode de déterminer si la terre est sphérique ou non. Indépendemment des observations astronomiques (10 p., 1 fig.) / Winslow, Deux observations anatomiques (16 p., 1 fold. plate) / Pitot, Essai d’une théorie nouvelle des pompes (29 p., 1 folded plate) / Hunauld, Examen de quelques parties d’un singe (8 p., 1 folded plate) / and numerous other papers by Bouguer, Geoffroy, Du Fay, Du Hamel, De Mairan, Morand, Lemery, Clairaut, Marchant, Boulduc, Fouchy, Le Monnier, Godin, Musschenbroek, Maraldi et Rideux.‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCXXXVI (1736). Tirées des registres de l’Académie Royale des Sciences. Partie I.‎

‎1740 [18], 166, 260 p., num. figures and engraved plates, engraved frontispiece depicting Athena holding a portrait of Louis XV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-page. A few pages with some offsetting. One joint weak. Published by Pierre Mortier, Amsterdam. First part of two.Includes papers by: Clairait, Solution de quelques problèmes de dynamique (31 p., 3 folded pls) / Du Hamel, Quelques expériences sur la liqueur colorante que fournitla Pourpre, espèce de coquille qu’on trouve abondemment sur les côtes de Provence (21 p.) / De Fay, Observations sur la Sensative (33 p., 1 folded plate) / Petit, Description anatomique de l’ooeil de l’espèce de Hibou appelé Ulula (38 p., 2 folded pls) / De Mairan, Problème astronomique. Trouver la hauteur du pôle indépendamment des réfractions.... (27 p., 1 folded plate) / and numerous other papers by Hellot, Maraldi, Grosse, Cassini, and Pitot.‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCC (1700). Tirées des registres de l’Académie Royale des Sciences.‎

‎1734 [12], 222, [1], 443 p., num. figures and engraved plates, engraved frontispiece depicting Athena holding a portrait of Louis XIV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-page. Published by Pierre Mortier, Amsterdam.Includes papers by: Tournefort, Observation sur les plantes qui naissent dans le fond de la mer (3, 14 p., 3 pls - bound accidental in first section) / Dodart, Sur l’affection de la perpendiculaire, remaquable dans toutes les tiges, dans plusieurs racines, & autant ... les branches des plantes (21 p., 2 large figs) / Dodart, Sur la multiplication des corps vivans considerée dans la fécondité des plantes (37 p.) / De la Hire, Remarques sur la construction des horloges à pendule (14 p., 5 figs) / Bernoulli, Nouvelle maniere de rendre les barometres lumineux (18 p.) / Homberg, Observations sur les dissolvans du mercure (17 p.) / De la Hire, Méthode générale sur les jets des bombes dans toutes sortes de cas proposés, avec un instrument universel qui sert a cet usage (10 p., 1 fig., 1 folded plate) / Varignon, Des forces centrales, ou des pésenteurs nécessaires aux planetes pour faire décrire les orbes qu’on leur a supposés jusqu’ici (31 p.) / and numerous other papers by Geoffroy, Boulduc, Cassini le fils, Lemery, Burlet, Verney, Couplet, Mery and Littre.‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCI (1701). Tirées des registres de l’Académie Royale des Sciences.‎

‎1735 [12], 186, 523, [1] p., num. figures and engraved plates, engraved frontispiece depicting Athena holding a portrait of Louis XIV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-page. One joint weak. Published by Pierre Mortier, Amsterdam.Includes papers by: Homberg, Essais de Chimie (27 p.) / De la Hire, Examen de la ligne courbe, formée par un rayon de lumiere qui traverse l’atmosphere (12 p., 5 figs) / Cassini, Réflexions sur la mesure de la terre, rapportée par Snellius dans son livre intitulé: Eratothenes Batavus (6 p., 1 folded plate) / Varignon, De la résistance des solides en général pour tout ce qu’on peut faire d’hypotheses touchant la force ou la ténacité des fibres des corps a rompre; & en particulier pour les hypotheses de Galilée & de M. Mariotte (47 p., 3 pls) / Littre, Histoire d’un foetus humain tiré du ventre de sa mere par le fondement (27 p., 2 pls) / Tournefort, Description du labirinthe de Candie, avec quelques observations sur l’accroissement & sur la génération de pierres (25 p.) / Sauveur, Application des sons harmoniques à la composition des jeux d’orgues (28 p., 4 folded pls) / and numerous other papers by Chazelles, Amontons, Boulduc, Verney, Maraldi, Rolle, Varignon, Carré, Bernoulli, and Tschirnhaus.‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCIV (1704). Tirées des registres de l’Académie Royale des Sciences.‎

‎1746 [12], 168, 506 p., num. figures and engraved plates, engraved vignette on title-page, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-page. Published by Pierre Mortier, Amsterdam.Includes papers by: Varignon, Nouvelle formation de spirales.... (103 p., 2 folded pls) / Poupart, Histoire du Formica-Leo (15 p., 1 folded plate) / De la Hire, Description et usage d’un niveau d’une nouvelle construction (14 p., 1 plate) / Amontons, Discours sur les barometres (10 p., 1 fig.) / Truchet, Memoire sur les combinaisons (14 p., 9 pls) / and numerous other papers by Verney, Maraldi, Cassini, Guisnée, Tournefort, Carré, Parent, Bernoulli, Homberg, Mery, and Geoffroy.‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCV (1705). Tirées des registres de l’Académie Royale des Sciences.‎

‎1746 8, [10], 194, 520 p., num. figures and engraved plates, engraved vignette on title-page, engraved frontispiece depicting Athena holding a portrait of Louis XIV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-page. Published by Pierre Mortier, Amsterdam.Includes papers by: De la Hire, Nouvelles remarques sur l’aiman, & sur les aiguilles aimantés (17 p.) / Littre, Observations sur les reins d’un foetus humain de neuf mois (10 p., 1 folded plate) / Bernoulli, Veritable hypothese de la resistance des solides... (15 p., 1 plate) / Tournefort, Etablissement de quelques nouveaux genres de plantes (7 p., 1 folded plate) / Varignon, Manometre, ou machine pour trouver le rapoort de raretez ou rarefactions de l’air naturel d’un même lieu endifferens tems.... (41 p., 7 figs) / Littre, Observation sur la matrice d’une fille de deux mois (7 p., 1 plate) / Chomel, Conyza montana / Limodorum montanum (7, 5, 1 folded plate) / and numerous other papers by Amontons (many), Cassini (many), Carré, Homberg, Poupart, Lemery, Boulduc, De Lagny, Geoffroy and Rolley.‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCVII (1707). Tirées des registres de l’Académie Royale des Sciences.‎

‎1747 2 volumes (complete). [10], 239, 772 p., num. figures and engraved plates, engraved vignette on title-page, engraved frontispiece depicting Athena holding a portrait of Louis XIV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-page. One joint tender. Published by Pierre Mortier, Amsterdam.Includes papers by: Littre, Observation sur un Aneurisme (11 p., 1 folded plate) / Nicole, Methode générale pour déterminer la nature des courbes formées par le roulement de toutes sortes de courbes sur une autre courbe quelconque (24 p., 2 pls) / Tournefort, Observations sur la naissance & sur la culture des champignons (11 p., 1 folded plate) / Guisnée, Théorie des projections ou du jet des bombes selon l’hypothèse de Galilée (16 p., 1 folded plate) / Varignon, Des mouvements variez à volonté, comperez entr’eux & avec les uniformes (76 p.) / Lemery, Reflexions & observations diverses sur un vegetation chimique de fer.... liqueurs acides et alkanines.. (39 p., 1 folded plate) / Varignon, Des mouvemens faits dans des milieux qui leur résistenet en raison quelconque (142 p., num. figs) / and numerous other papers by De la Hire (many), Cassini (many), Maraldi, Carré, Homberg, Dodart, Burlet, Patent, Mery, Sauveur, Reneaume, Rolle, Marchant, Chevalier, Clapiez & Geoffroy.‎

‎Suite des Mémoires de Mathématique et de Physique de l’année M.DCCVIII (1708). Tirées des registres de l’Académie Royale des Sciences.‎

‎1750 [14], 188, 603 p., num. figures and engraved plates, engraved vignette on title-page, engraved frontispiece depicting Athena holding a portrait of Louis XIV, 10.5 x 17 cm, contemporary full calf, spine with five raised bands and gilt compartments, red label, marbled endpapers. Edges red. Wear on spine and corners. Contemporary paper label with written number on lower end spine, small ex libris (bookplate) on front pastedown, small old library stamp on title-page. One joint tender. Published by Pierre Mortier, Amsterdam.Includes papers by: De la Hire, Des conchoïdes en général (37 p., 2 folded pls) / De la Hire, Description d’un nouveau baromètre pour connaitre exactement la pésanteur de l’air, avec quelques remarques sur les baromètres ordinaires (17 p., 1 plate) / Cassini / De la Hire, Observation du passage de la lune par les pleiades, le 10 aout 1708 (3, 3, 1 folded plate) / Delisle, Conjectures sur la position de l’Isle de Méroé (14 p., 1 folded map) / Rolle, Eclaircissemens sur la constructions des egalités (34 p., 1 folded plate) / and numerous other papers by Parent, Reneaume, Nicole, Geoffroy, Varignon, Maraldi, Mery, Reaumur, Homberg, & Astruc.‎

‎Recherches sur L'Origine des Sentimens agreables et desagreables. 1.-4. Partie. (1. Theorie générale du plaisir. 2. Théorie des plaisirs intellectuels. 3. Des plaisirs des sens. 4. Des plaisirs moraux). - [THE FIRST DESCRIPTION OF PHYSIOLOGICAL ELECTRICITY]‎

‎(Berlin, Haude et Spener, 1753-54). 4to. Unbound, but stitched. In: ""Memoires de l'Academie Royale des Sciences et Belles-Lettres"" Tome VII pp. (57-)100 and Tome VIII pp. 350-390.‎

‎First editions and the first reports of the electrophysiological effects of electricity, the so-called electric taste produced by passing a small electric current through the tongue. The effect was described here nearly 50 years before Galvani and Volta investigated the phenomena (Galvani 1791, Volta 1792).""In a work entitled ""Recherches sur l'origine des sentiments agréables et désagreables"", which was published in 1752 (correctly published in 1753, the item offered), Johann Georg Sulzer (1720-79) had mentioned that two pieces of metal, the one of lead and the other of silver, be joined together in such a manner that their edges touch, and if they be placed on the tongue, a taste is perceived 'similar to that of vitriol of iron', although neither of these metals applied separately gives any trace of such taste. 'It is not probable', he says, 'that this contact of the two metals causes a solution of either of them, liberating particles which might affect the tongue"" and we must therefore conclude that the contact sets up a vibration in their particles, which, by affecting the nerves of the tongue, produces the taste in question.'. This observation was not suspected to have any connection with electrical phenomena, and it played no part in the inception of the next discovery, which indeed was suggested by a mere accident.""(Whittaker. A History of the Theories of Aether and Electricity. I:p. 67).‎

‎Forts par la culture physique. Méthode française pratique et individuelle.‎

‎Librairie athlétique et hygiénique de la Culture physique Broché In-12 (12x19 cm), broché, (IX)-85 pages, préface de Adolphe Chéron, 15e mille, contient des planches d'exercice dépliantes in fine ; léger manque aux coiffes, rousseurs sur les plats salis, petites déchirures en bordures de 4e plat, rousseurs et quelques annotations au crayon à l'intérieur, état correct. Livraison a domicile (La Poste) ou en Mondial Relay sur simple demande.‎

‎Le cadran sursolaire, procédé simplifié de recherches au moyen du pendule- Radiesthésie- Précédé d'une réponse à certaines attaques contre la radiesthésie et ses adeptes.‎

‎Imp. René Samie. 1938. In-8. Broché. Etat d'usage, Couv. défraîchie, Manque en coiffe de tête, Papier jauni. 77 pages. Coins frottés. Quelques accrocs au dos. Tampon en page de titre. Quelques rousseurs.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎TECHNIQUES GENERALES DU LABORATOIRE DE PHYSIQUE - VOLUME 1‎

‎CENTRE DE DOCUMENTATION DU C. N. R. S.. 1947. In-8. Cartonnage d'éditeurs. Etat d'usage, Couv. convenable, Mors fendus, Intérieur frais. 433 pages.. . . . Classification Dewey : 530-Physique‎

‎Centre national de la recherche scientifique. Préface de F. Joliot-Curie. Classification Dewey : 530-Physique‎

‎Techniques générales du laboartoire de physique Volume 1‎

‎CNRS. 1947. In-8. Relié. Bon état, Couv. convenable, Dos abîmé, Intérieur frais. 433 pages augmentées de quelques schémas en noir et blanc dans texte.. . . . Classification Dewey : 530-Physique‎

‎Etiquette sur coiffe en pied. Tampon bibliothèque. Préface de Joliot-Curie F. Classification Dewey : 530-Physique‎

‎Techniques générales du laboratoire de physique Volume III Sommaire: Rayons X; L'oscillographie cathodique; Les vernies; les colles; Les céramiques; Les verres...‎

‎CNRS. 1952. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 471 pages augmentées de quelques figures en noir et blanc dans texte.. . . . Classification Dewey : 530-Physique‎

‎Etiquette sur coiffe en pied. Tampon bibliothèque. Sommaire: Rayons X; L'oscillographie cathodique; Les vernies; les colles; Les céramiques; Les verres... Classification Dewey : 530-Physique‎

‎Techniques générales du Laboratoire de Physique. Préface de F. Joliot-Curie. Volume 1.‎

‎ 1947 Paris, CNRS, 1947, in 8° broché, 433 pages ; nombreuses figures in et hors-texte ; cachet-ex-libris sur le titre ; couverture fanée. ‎

‎ ...................... Photos sur demande .......................... ‎

‎Johan Gottlob Süskind's Handbuch der Naturlehre, oder das Wissenswürdigste und Gemeinnützigste aus der Physik, nebst einem Abriss der Chemie, zur Selbstbelehrung und zum Unterricht Anderer‎

‎Stuttgart, Steinkopf 1840 xvi,1014pp.+ 8 enfolding engraved plates (with 301 illustrations), 2nd edition ("Zweite verbesserte und vermehrte Ausgabe grossentheils neu bearbeitet mit Nachträgen und neuen Figuren versehen von G.chr.Reuss", 1st edition dates from 1812), 21cm., cart.cover, VG‎

‎Le minimum théorique. Tout ce que vous avez besion de savoir pour commencer à faire de la physique. Traduit de l’anglais par André Cabannes.‎

‎ Lausanne, Presses polytechniques et universitaires romandes 2015, 210x145mm, XII - 257pages, broché. Bel exemplaire.‎

‎ illustré, Pour un paiement via PayPal, veuillez nous en faire la demande et nous vous enverrons une facture PayPal‎

‎Le minimum théorique - Tout ce que vous avez besoin de savoir pour commencer à faire de la physique‎

‎Presses polytechniques et universitaires romandes. 2020. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 257 pages.. . . . Classification Dewey : 530-Physique‎

‎Trad. de l'anglais par André Cabannes. Classification Dewey : 530-Physique‎

‎Die Dekadenz der Arbeit. Nach der 2. Auflage aus schwedischen übersetzt von B. Finkelstein.‎

‎Leipzig, Akademische Verlagsgesellschaft, 1923. 8vo. Orig. cardboardbinding w. gilt lettering on spine and front board. 160 pp.‎

‎First German edition.‎

‎Recherches sur les Aiguilles Aimantées, et sur leurs Variations régulières, qui ont portagé le Prix proposé pour L'Année 1777.‎

‎Paris, Moutard, Panckoucke, 1780. 4to. Contemp. full sprinckled calf with 5 raised bands on spine. Richly gilt compartments, title-and tomelabels with gilt lettering. ""Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome VIII. XXIV,624 pp., 8 engraved plates a. 52 folded tables. (Entire volume offered). Van Swinden's work: pp. 1-576, 3 folded engraved plates and 52 folded tables.‎

‎First edition of Van Swinden's large work on magnetism and the function of the compass and the variability of magnetic needles. It also explained the diurnal variation of the earth's magnetic force.In 1767 van Swinden obtained the chair of philosophy, logic, and metaphysics at Franekar University. He studied all the popular scientific topics of the period, especially magnetism, electricity, meteorolgy, and chemistry, and corresponded with many leading scientists, including Bonnet, Euler, Deluc, J. C. Wilcke, Bertholon, and Lalande. His Tentamen de magnete (1772) dealt with his mathematical theory of magnetism, and in 1777 he and Coulomb shared the gold medal of the Paris Academy of Sciences for a very detailed prize essay on magnetism, Recherches sur les aiguilles aimantées. (the essay offered).Poggendorff II, 1057‎

‎Bath-Tub Vortex. - [THE CORIOLIS EFFECT ON A BATHTUB VORTEX]‎

‎London, Macmillian, 1962. Royal8vo. Bound in contemporary half calf with gilt lettering to spine. In ""Nature"", Vol. 196, October - December. Stamp to pasted down front end-paper and title-page. A fine copy. Pp. 1080-1. [Entire colume: LII, 1346 pp.].‎

‎First appearance of Shapiro's famous paper in which he sought to describe a bathtub vortex with the Coriolis Effect. This eventually gave birth to the urban myth that a toilet vortex always will have a counter clockwise flow in the Northern Hemisphere. The Coriolis effect on a micro level is still disputed and has never been satisfyingly confirmed or rejected. Scientists were aware that Earth's rotation alters the trajectory of objects in motion. This phenomenon causes low-pressure weather systems to twist counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. The Coriolis effect, as it's known, had long been well documented as the cause of hurricanes and tornadoes. But despite previous attempts, no one had shown that the effect-first described in 1835 by the French engineer and mathematician Gustave-Gaspard Coriolis-works on very small scales as well. Though in theory it should influence bathwater's exit through a drain, the Coriolis effect was thought to be too small to see.""For his experiment, Shapiro used a circular, flat-bottomed tub with a centered drain hole three-eighths of an inch in diameter to which he attached a 20-foot length of hose, plugged with a stopper at the end. He filled the tank six inches deep with clean, room-temperature water. Small variations-air movement, a temperature change, a surface disturbance-create buoyancy currents that overshadow the Coriolis effect. So Shapiro did much tinkering to cancel out these possible sources of interference-covering the tank with a sheet of plastic to keep out air currents, for example, and carefully controlling the room's temperature. He also filled the tank by swirling water in clockwise, so that if the water drained counterclockwise, the direction would not have been influenced by how the tank was filled.After 24 hours of letting the water settle, Shapiro carefully pulled the plug from the end of the hose, gently placing above the drain a small float made of two crossed slivers of wood an inch long. It took about 20 minutes for the tub to drain completely. For the first 12 to 15 minutes, the float remained motionless. Then it began to rotate almost imperceptibly, counterclockwise, reaching a peak speed of approximately one revolution every three to four seconds. Proving that the Coriolis effect can be detected in a bathtub-size tank, albeit under carefully controlled conditions, was a remarkable achievement. At MIT's latitude of 42°, the effect was ""only thirty-millionths that of gravity, which is so small that it will be overcome by filling and even temperature differences and water impurities,"" reported one of many newspapers and periodicals covering the experiment. Shapiro's results were published in Nature and verified by colleagues who used his technique to demonstrate a clockwise flow in the Southern Hemisphere. The findings fascinated a curious public of all ages. Shapiro would also become known for explaining and improving the aerodynamics of golf ball dimples, as well as for helping to develop the intra-aortic balloon for heart patients and devices to treat blood clots, asthma, emphysema, and glaucoma. But for more than a decade after the bathtub test, he would receive letters and newspaper clippings from all over the world about what was dubbed the ""bathtub vortex"" controversy. "" (MIT Technology Review).‎

‎Über die Entropieverminderung in einem thermodynamischen System bei Eingriffen intelligenter Wesen. [On the Decrease of Entropy in a Thermodynamic System by the Invention of intelligent Beings). - [MAXWELL'S DEMON]‎

‎Berlin, Julius Springer, 1929. 8vo. Contem. hcloth. In ""Zeitschrift für Physik"", Vol. 53. VII,(1),889,(1) pp. The whole volume offered. Szilard's paper: pp. 840-856. Ex-lirbrary stamp to front free end-paper, otherwise no stamps or other markings. A fine copy.‎

‎First edition of the important paper in which Szilard solved the puzzle of Maxwell's demon and discover a theoretical model that serves both as a heat engine and an information engine, eatablishing the connection between entropy and information. Szilard was the first to stress that any manipulator of molecules would have to rely on measurement and memory. If one assumed that the demon could perform such operations without causing any changes in the system, one would by that very assumption deny the second law of thermodynamics, which requires equivalent compensations for all decreases in entropy. Szilard therefore proposed that whatever negative entropy Maxwell's demon might be able to create should be considered as compensated by an equal entropy increase due to the measurements the demon had to make. In essence, Szilard made Maxwell's doorkeeper mortal-no longer granting this tiny intelligence the ability to 'see' molecules without actually seeing them, i.e., without the sensory exchanges of energy that all other existences require. Szilard took this step for the sake of a grander vision, the dream that the adoption of his principle would lead to the discovery of a more general law of entropy in which there would be a completely universal relation for all measurements. Information theory has brought that vision to reality.‎

‎Über die Entropieverminderung in einem thermodynamischen System bei Eingriffen intelligenter Wesen. [On the Decrease of Entrophy in a Thermodynamic System by the invention of intelligent Beings). - [MAXWELL'S DEMON AND THE CONNECTION BETWEEN ENTROPY AND INFORMATION]‎

‎Berlin, Julius Springer, 1929. 8vo. Contemp. hcloth. Some wear to edges and spine. A stamp on title-page. In ""Zeitschrift für Physik"", vol. 53. The whole volume offered. VII,(1),889,(1) pp. Szilard's paper: pp. 840-856.‎

‎First edition of the important paper in which Szilard solved the puzzle of Maxwell's demon and discovered a theoretical model that serves both as a heat engine and an information engine, establishing the connection between entropy and information.Szilard was the first to stress that any manipulator of molecules would have to rely on measurement and memory. If one assumed that the demon could perform such operations without causing any changes in the system, one would by that very assumption deny the second law of thermodynamics, which requires equivalent compensations for all decreases in entropy. Szilard therefore proposed that whatever negative entropy Maxwell's demon might be able to create should be considered as compensated by an equal entropy increase due to the measurements the demon had to make. In essence, Szilard made Maxwell's doorkeeper mortal - no longer granting this tiny intelligence the ability to 'see' molecules without actually seeing them, i.e., without the sensory exchanges of energy that all other existences require. Szilard took this step for the sake of a grander vision, the dream that the adoption of his principle would lead to the discovery of a more general law of entropy in which there would be a completely universal relation for all measurements. Information theory has brought that vision to reality.‎

‎Über die Entropieverminderung in einem thermodynamischen System bei Eingriffen intelligenter Wesen. [On the Decrease of Entropy in a Thermodynamic System by the Invention of intelligent Beings). - [""THE EARLIEST KNOWN PAPER IN WHAT BECAME THE FIELD OF ""INFORMATION THEORY""""]‎

‎Berlin, Julius Springer, 1929. 8vo. Bound in contemporary halfcloth. In ""Zeitschrift für Physik"", Vol. 53, 1929. Entire volume offered. Library stamp to title page, otherwise fine and clean. Pp. 840-856. [Entire volume: VII,(1),889,(1) pp.]‎

‎First edition of the landmark paper in which Szilard solved the puzzle of Maxwell's demon and discovered a theoretical model that serves both as a heat engine and information engine, establishing the connection between entropy and information. ""This work is now considered to be the earliest known paper in what became the field of ""information theory"". (Lanouette, Genius in the Shadows: A Biography of Leo Szilard, the Man Behind the Bomb). In the philosophy of thermal and statistical physics, Maxwell's demon is a thought experiment created by Maxwell to show that the Second Law of Thermodynamics has only a statistical certainty. ""Maxwell's demon was first mentioned in a letter written to Tait in 1867. Maxwell was one amongst a number of researchers in the developing field of thermodynamics who was interested in seeking an understanding of thermal phenomena in terms of an underlying atomic physics. However, unlike Boltzmann and Clausius, who were attempting to prove the law of entropy increase from such atomic physics, Maxwell had realised that if thermodynamics was ultimately grounded in atomic theory, then the second law of thermodynamics could have only a statistical validity."" (SEP). Szilard (In the present paper) attempted to investigate this special case of intelligently operated devices by considering a box containing only a single molecule. He argued that in order to achieve the entropy reduction, the intelligent being must acquire knowledge of which fluctuation occurs and so must perform a measurement. The second law would not be threatened provided there was a compensating cost to performing this measurement, regardless of the character of the intelligent being.""Claude E. Shannon, who spelled out detailed relationship between information and entropy in the 1950s, also later acknowledged that Szilard's paper had proposed the basis for his new field study."" (Lanouette, Genius in the Shadows: A Biography of Leo Szilard, the Man Behind the Bomb).‎