60 books for « helmholtz h »Edit

‎Hermann von Helmholtz and the Foundations of Nineteenth-Century Science , (1. Physiologist : Helmholtz and the German medical community - Experiment, quantification and discovery : Helmholtz's early physiological researches, 1843-1850 - The eye as mathematician : Clinical practice, instrumentation, and Holemholtz's construction of an empirical theory of vision - Consensus and controversy : Helmholtz on the visual perception of space - Innovation through synthesis : Helmholtz and color research - Sensation of tone, perception of sound, and empiricism : Helmhotz's physiological acoustics - 2. Physicist : Helmhotz's Ueber die Erhaltung der Kraft : The emergence of a theoretical physicist - Electrodynamics in context : Object states, laboratory practice, and anti-romanticism - Helmholtz's instrumental role in the formation of classical electrodynamics - Between physics and chemistry : Helmholtz's route to a theory of chemical thermodynamics - Helmholtz's mechanical foundation of thermodynamics - 3. Philosopher : Force, law, and experiment : The evolution of Helmholtz's philosophy of science - Helmholtz's empiricist philosophy of mathematics : Between laws of perception and laws of nature - Helmholtz and classicism : The science of aesthetics and the aesthetics of science - Helmholtz and the civilizing power of science)‎

‎University of California Press , California Studies in the History of Science Malicorne sur Sarthe, 72, Pays de la Loire, France 1993 Book condition, Etat : Très Bon hardcover, editor's binding, under editor's original purple dust-jacket, illustrated by a portrait of Hermann von Helmholtz fort et grand In-8 1 vol. - 695 pages‎

‎31 black and white illustrations 1993's edition "Contents, Chapitres : Contents, List of Illustrations, Acknowledgments, Contributors, Abbreviations, Chronological listing of the Principal Events and Publications of Helmholtz's Life and Career, xxix, Text, 666 pages - D. Cahan : Introduction, Helmholtz at the borders of science - 1. Physiologist : Arleen Tuchman : Helmholtz and the German medical community - Kathryn M. Olesko and Frederic L. Holmes : Experiment, quantification and discovery : Helmholtz's early physiological researches, 1843-1850 - Timothy Lenoir : The eye as mathematician : Clinical practice, instrumentation, and Helmholtz's construction of an empirical theory of vision - R. Steven Turner : Consensus and controversy : Helmholtz on the visual perception of space - Richard L. Kremer : Innovation through synthesis : Helmholtz and color research - Stephan Vogel : Sensation of tone, perception of sound, and empiricism : Helmhotz's physiological acoustics - 2. Physicist : Fabio Bevilacqua : Helmhotz's Ueber die Erhaltung der Kraft : The emergence of a theoretical physicist - Jed Z. Buchwald : Electrodynamics in context : Object states, laboratory practice, and anti-romanticism - Walter Kaiser : Helmholtz's instrumental role in the formation of classical electrodynamics - Helge Kragh : Between physics and chemistry : Helmholtz's route to a theory of chemical thermodynamics - Günter Bierhalter : Helmholtz's mechanical foundation of thermodynamics - 3. Philosopher : Michael Heidelberger : Force, law, and experiment : The evolution of Helmholtz's philosophy of science - Robert DiSalle : Helmholtz's empiricist philosophy of mathematics : Between laws of perception and laws of nature - Gary Hatfield : Helmholtz and classicism : The science of aesthetics and the aesthetics of science - David Cahan : Helmholtz and the civilizing power of science - Bibliography and Index - Hermann Ludwig Ferdinand von Helmholtz est un scientifique (physiologiste et physicien) prussien, né le 31 août 1821 à Potsdam et mort à Berlin-Charlottenburg en 1894. Il a notamment apporté d'importantes contributions à l'étude de la perception des sons et des couleurs ainsi qu'à la thermodynamique. - Helmholtz a vécu à une époque propice à développer lexpérimentation grâce à un arsenal dinstruments de plus en plus performants, qui prolongent, démultiplient, amplifient, accélèrent le regard des scientifiques sur la nature des phénomènes (et dans ce cas précis, des phénomènes sonores) pour mettre en évidence les explications de certaines observations : la technique a permis de transcrire sous une forme objective des phénomènes inexpliqués ; ainsi, lacoustique progresse considérablement et Helmholtz fonde l'optique physiologique et la psychophysique. (source : Wikipedia)" near fine copy, no markings, the dust-jacket is complete and near fine, minor folding tracks on the spine, the bottom part of the D.J. is very lightly torn on less than 0,5 cms, quite nothing, inside is fine, a very nice copy of this masterwork on Helmholtz‎

‎Ueber einige Stellen der Schrift von Helmholtz ""über die Erhaltung der Kraft""" (and Helmholtz:) Erwiederung auf die Bemerkungen von Hrn. Clausius" (and Clausius:) Ueber einige Stellen der Schrift von Helmholtz ""über die Erhaltung der Kraft"", zweite No...‎

‎Leipzig, Johann Ambrosius Barth, 1853-54. No wrappers. ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Vol. 89, No 8 and vol. 91 No 2 a. 4. Pp. 497-628, pp. 161-320 a. pp. 497-628 a. 1 folded plate. (3 entire issues offered). Clausius's papers pp. 568-579 (vol. 89, ""Heft"" 8) a. pp. 601-604 (vol. 91,""Heft"" 4). Helmholtz paper: pp. 241-260 (vol. 91, ""Heft"" 4). With titlepages to both volumes 89 a. 91. All three issues clean and fine.‎

‎First printing of the 3 main papers in the famous Helmholtz-Clausius controversy about the principle of the ""Conservation of Energy"". His reply to Clausius contains very importent additons to his conservation law, as it clarifies his use of the concepts of ""energy"", ""vis viva"", ""electrical tension"" , ""potentials"" etc.Helmholtz famous work Über die Erhaltung der Kraft"" from 1847 gave the first comprehensive statement of the first law of thermodynamics: All modes of energy, heat, light, electricity, and all chemical phenomena, are capable of transformation from one to the other but are indestructible and cannot be created. Clausius (in the papers offere) critized helmholtz on his theory of heat over the consistency of the physical interpretation and of the use mathematics. He argued that Helmholtz's demonstration of his conservation law was valid only for Helmholtz's particulat model of matter, and that he had not understood the notion of the potential. This criticism lead Helmholtz expand and clarify the central concepts of physics, importent steps in the history of theoretical physics.‎

‎Physiologische Wärmeerscheinungen. Bericht über ""Der Inhalt der Schrift ""Ueber die Erhaltung der Kraft"""".‎

‎Berlin, G. Reimer, 1850. Contemp. hcalf, profusely gilt spine. XXXII,622 pp. In: ""Fortschritte der Physik im Jahre 1847. Dargestellt von der physikalischen Gesellschaft zu Berlin"". III. Jahrgang. Redigirt von G. Karsten. XLIV,703 pp. Stamp on titlepage. Helmholtz's paper: pp. 232-245. Clean and fine.‎

‎First printing of Helmholtz's own report on the meeting of the 23rd of July 1847 in the Physical Society of Berlin. In the meeting he presented with great success his groundbreaking paper ""Ueber die Erhaltung der Kraft"". In the paper printed in the ""Fortschritte"", Helmholtz summarizes the main mathematical and historical features of his Conservation of Energy-principle as it was laid down in ""Ueber die Erhaltung der Kraft"".""On July 21 he (Helmholtz) announced to du Bois-Reymond that he would bring forward his 'Conservation of Energy' on the 23rd at the Physical Society. The meeting was one of the most memorable in the annals of the Society"" as du Bois tells us, Helmholtz revealed himself at one bound, to the surprise of all his friends, as a master of mathematical physics. The members of the Physical Society were acquainted with the Law of the Conservation of Energy when it was still unknown to all the rest of the world.""(Leo Koenigsberger in ""Hermann von Helmholtz"", pp. 38).In his groundbreking work Helmholtz announced the first comprehensive statement of the first law of thermodynamics: All modes of energy, heat, light, electricity, and all chemical phenomena, are capable of transformation from one to the other but are indestructible and cannot be created. Helmholtz offered his paper to Poggendorf's 'Annalen', but the editor declined to publish so dangerous a speculation. Helmholtz had it printed at his own expense in a small number in 1847.‎

‎Note sur la vitesse de propagation de l'agent nerveux dans la nerfs rachidiens" (Transmise par M. de Humboldt). (Séance du Lundi 25 Fevrier 1850). (+) Deuxieme Note sur la vitesse de l'agent nerveux. (2 Papers).‎

‎Paris, Bachelier, 1850 a. 1851. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 30, No 8 and Tome 33, No 9. Pp. (185-) 215 a. pp. (253-) 276. Helmholtz's papers: pp. 204-206 a. pp. 262-265. Clean and fine.‎

‎First appearance (also in Berichte königl. Preuss. Ak. the same year) of these short notes in which Helmholtz announced his discovery and measurements of the time delay of nervous impulses, a discovery ""which opened a new and unbounded field of investigations to physiologists"". It is one the most importent discoveries in physiology in the 19th century.""Du Bois-Reymond... received Helmholtz's first two-page note. Müller, to whom Du Bois tried to ecplain it, insisted on rejecting the conclusion, arguing that Helmholtz had not eliminated the time for the contraction of the muscle. Humboldt, du Bois wrote Helmholtz, ""war ganz depaysiert"", and at first refused to send the paper to Paris for publication there. Du Bois had first to edit it and then Humboldt, won over, had it published in the ""Comptes Rendus"", adding a further explanatory foot-note of his own. By summer, Müller had also been won, and then helmholtz published his longer paper in which he included a measurement of tghe time of the muscular cobntraction and nes determinations of the rate of transmission.""(Boring ""History of Experimental Psychology"", p. 48).""To separate the movement in time from the event of will that caused it was in a sense to separate the body from the mind, and almost from the personality or self. At any rate, helmholtz's discovery was a step in the analysis of bodily motionthat changed it from an instantaneous occurrence to a temporal series of events, and it thus contributed to the materialistic view of the psychophysical organuismthat was the essence of nineteenthy century science.... The most impiortent effect of the experiment and all the research that followed upon it was, however, thatit brought the soul to time, as it were, measured what had been ineffable, actually captured the essential agent of mind in the toils of natural science."" (Boring ""History of Experimental Psychology"", p. 42).""Helmholtz’ research in sensory physiology began in 1850, when he determined the velocity of the nerve impulse in the sciatic nerve of the frog. In 1852 he obtained more precise results through his invention of the myograph. This device, in which the muscle traces the motion of its contraction upon a rotating drum, permitted more exact measurement of the small time intervals involved than any previous method. Helmholtz’ measurements yielded not only a finite velocity for nerve propagation but also the surprisingly slow one of about ninety feet per second. The result was considered a victory for the mechanistic school, for it seemed to confirm du Bois-Reymond’s hypothesis that the nerve impulse consisted in the progressive rearrangement of ponderable molecules.""(DSB).‎

‎Helmholtz. Des lumières aux neurosciences ---- EDITION ORIGINALE‎

‎P., O. Jacob, 2001, un volume in 8, broché, couverture imprimée, 313pp.‎

‎---- EDITION ORIGINALE ---- Helmholtz : de Potsdam à la pépinière - La naturphilosophie à l'époque du jeune Helmholtz - Johannes M¥ller l'homme de fer - Vitalisme : la meilleur et la pire des choses - Helmholtz et la compréhension de la nature - A la recherche du temps perdu - Goethe et sa vision de la nature - La dispute des couleurs : Goethe ou Helmholtz - Le regard fondateur : Helmholtz et la philosophie, le traité d'optique physiologique, la perception sensorielle, l'oeil et la raison - Pour contre Pythagore ? : recherches sur l'audition, le musicien Helmholtz, les consonances musicales (Pytagore ou Euler ?), la gamme naturelle, le triomphe de Fourier... - L'oreille musicale - La sagesse d'Alexandre von Humboldt‎

‎Ueber Hrn. Brewster's neue Analyse des Sonnenlichts.‎

‎Leipzig, Johann Ambrosius Barth, 1852. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Dritte Reihe Bd. 26, Achtes Stück.(= Heft No. 8 of 1852). (The entire issue (No. 8) offered). Titlepage to vol. 26. Pp. 501-600. Helmholtz's paper: pp. 501-523. Clean and fine.‎

‎First appearance of this founding paper in the modern theory of colour, in which Helmholtz proved the surprising fact that there are only two among the colours of the spectrum, yellow and indigo-blue, which together yields pure white, that is, are complementary to each other, whereas their combination had always been supposed to produce green.""Helmholtz turned to the intricate problems of color vision in 1852 with an attack on Sir David Brewster's new theory of light. Brewster had maintained the objective reality of three primary colors by supposing, in opposition to Newton, that there exist three distinct kinds of light, each of which excites in the eye one of the sensations red, yellow, or blue. Helmholtz regarded the theory as still another confusion of physical stimulus and subjective responce....He also revived Young's theory of color visoin...only to refute it. He had discovered that spectral colors, when mixed, always yield a duller color of less-than-spectral saturation. Therefore the whole idea that all colors may be obtained from mixtures of three primary colors must be incorrect, he concluded, for the spectral colorss, at least, can never be obtained in their full saturation by mixing any three of their number....Although Helmholtz dismissed Young's theory in 1852, by 1858 he had changed his mind and become its formost advocate. In order to save Ypoung's theory....Helmholtz asumed that Young's physiological primaries are not spectral colors att all, but colors of far greater-than-spectral saturation...""(DSB VI, pp. 246-247). Garrison & Morton 1508.‎

‎Ueber galvanische Ströme, verursacht durch Concentrationsunterschiede"" Folgerungen aus der mechanischen Wärmetheorie. (On galvanic Currents caused by Differences in Concentration: Deductions from the Mechanical Theory of Heat).‎

‎Leipzig, Johann Ambrosius Barth, 1878. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 3, 2. Heft. Pp. 161-320 a. 1 folded plate. (entire issue offered). Helmholtz' paper: pp. 201-216. With titlepage to volume 3.‎

‎First apperance - in full - of this importent paper in which for the first time the 2 laws of thermodynamics were applied to electrical phenomena. Parts of the paper were published already in 1877.""In 1877 Helmholtz attempted to predict theoretically the electromotive force of a galvanic cell for different concentrations of a salt solution. Under certain conditions the cell can be treated as a reversible cycle and the laws of Carnot and Clapeyron applied to it. The theory was in substantial agreement with experimental data by James Moser.""(DSB). - The Moser-paper confirming Helmholtz theory is printed here on pp. 216-219, taken from Monatsberichte der Berl. Akad., 1877.""In his work 'On Galvanic Currents', Helmholtz was the first to apply the two laws of thermodynamics to electricity. In order to keep up a current of electricity through any conductor it is necessary to expend a certain amount of chemical or mechanical work"" the supply of positive electricity in the positive end of the conductor must be perpetually renewed, in order to oppose the repulsive force of the positive electricity there accumulated, and the same holds for the negative electricity at the negative end.""(Koenigsberger ""Hermann von helmholtz"", pp. 309-12).‎

‎Studien über electrische Grenzschichten. (Studies in Electrical Contact-layers).‎

‎Leipzig, Johann Ambrosius Barth, 1879. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 7, No. 7. Pp. 337-496 a. 1 plate. (Entire issue offered). Helmholtz paper: pp. 337-382.‎

‎First appearance of a famous paper in electrodynamics in which Helmholtz was able to explain the production of electricity by friction and succeeding ""in deriving the relations of the series of electrical tensions due to friction, and the theory of the electrical machine, satisfactorily from it.....In this paper....Helmholtz comes back repeatedly to the close connection between electrical and the chemical forces, as well as to the explanation of Volta's fundamental experiment......These researches of Hertz, the results of which were plainly foreseen by helmholtz, gave substantial support to the Faraday-Maxwell hypothesis of the nature of electricity, and confirmed Helmholtz in his opinion of the accuracty of Faraday's conceptions.""(Koenigsberger ""Hermann von helmholts"", pp. 317-321).‎

‎Theorie der Luftschwingungen in Röhren mit offenen Enden.‎

‎Berlin, Georg Reimer, 1860. 4to. Hcalf, but spine gone and covers loose. In: ""Journal für die reine und angewandte Mathematik Crelle/Borchardt"", 57. Band. IV,375,(1) pp. (Entire volume offered). Helmholtz' paper: pp. (1-) 72. A small brownspot to page one.‎

‎First printing of Helmholtz' groundbreaking work on the aerial vibrations in tubes. Together with his work on Vortex Motion (Ueber Integrale der hydrodynamischen Gleichungen, welche den Wirbelbewegungen entsprechen) from 1858 it ""must be reckoned among the most brilliant of Helmholtz's mathematical achievements, only rivalled, and perhaps surpassed, by the work of the last ten years of his life.""(Leo Koenigsberger, p. 180 ff).The paper was reprinted in Ostwald's Klassiker Nr. 80.The volume contains further importent papers by Clebsch, C. neumann, Borchardt, Cayley, Hesse, Hermite, Kronecker, Kummer etc.‎

‎Optique physiologique traduite par Emile JAVAL et N. Th. Klein -- PREMIERE EDITION FRANCAISE EN PARTIE ORIGINALE‎

‎P., Masson, 1867, un fort volume in 8 relié en demi-chagrin noir (reliure de l'époque), (quelques rousseurs), (2), 11pp., 1057pp., (1-errata), 213 figures dans le texte et 11 planches hors texte‎

‎---- PREMIERE EDITION FRANCAISE EN PARTIE ORIGINALE, corrigée et AUGMENTEE PAR HELMHOLTZ lui-même : "La traduction a fourni l'occasion de corriger, particulièrement dans les calculs, un certain nombre de fautes qui avaient subsisté dans le texte original ainsi que d'enrichir les bibliographies. M. Javal m'a permis d'intercaler quelques passages relatifs aux observations que comportent les états pathologiques de ces organes". (Préface de H. Helmholtz) ---- "A MASSIVE WORK" (DSB) ---- Garrison N° 1513 (1st german ed.) : "One of the greatest books on physiological optics" ---- "Helmholtz exerted incalculable influence on nineteenth-century science... In many respects his career epitomized that of german science itself in his era, for during Helmholtz lifetime german science, like the german empire, gained virtual supremacy on the continent... Helmholtz incorporated all his results in physiological optics in his Handbuch der physiologischen optik, a massive work which encompassed all previous research in the field...". (DSB VI pp. 241/253)**6651/D6AR-6650/C2‎

‎Handbuch der Physiologischen Optik. Bearbeitet. Mit 213 in den text eingedruckten Holzschnitten und 11 Tafeln.‎

‎Leipzig, Leopold Voss, 1867. Lex8vo. Contemporary hcloth. Some cracks along hinges neathly repaired. A stamp on titlepage and last page. XIV,874,(1) pp., 213 textillustr. in woodcut and 11 folded plates. Plate 1 with a faint dampstain, otherwise clean and fine. The copy also having the series-title: ""Allgemeine Encyclopädie der Physik...Hrsg. von Gustav Karsten. IX. Band. Handbuch der Physiologischen Optik.""‎

‎First edition of a main work by the ""Patriarch of German Science"". It is ""Considered the most importent book on the physiology and physics on vision."" (Horblit, 100 Books famous in Science). It incorporates Helmholtz's studies on physiological Optics, starting in the year 1851, the year in which he published his invention of the ophthalmoscope. - ""When Helholtz abandoned physiology for physics in 1871, the former science, he complained, had already grown too complex for any individual to embrace in its entirety. At his death in 1894, that complexity had become true of virtually all fields, Helmholtz was the last scholar whose work, in the tradition of Leibniz, embraced all the sciences, as well as philosophy and the fine arts."" (R. Steven Turner in DSB). -""One of the greatest book on physiological optics"" (Garrison & M., 1513). Helmholtz' contributions to science covers a wide range. ""His work in physiological optics, which he embodies in a great, is of fundamental value"" (Magie: A Source Book in Mathematics). In the authors introduction to the work,dated 1866, he states that it originally appeared in three parts, the first in 1856, the second in 1860 and the third in 1816, and incorporates his researches in his investigations on colours, the physiology of vision and the dioptrics of the eye. The first part contains besides the papers on physiological optics, that were published the years before, an admirable review of all previous work comprised under this heading, the book contains a store of new and most importent results, which provided a firm mathematical basis for the whole structure of physiological optics....In the first part he is principally concerned with the problem of of the refraction of the light-rays, or the dioptrics of the eye. Part II deals with the theory of visual sensation and treats in the first place of the various forms of stimulation of the optic nerve, and then of its excitation by light in particular, after which Helmholtz gives a connected development of the theories previously published by himself and others on simple and compound colours. Part III deals with the connections between the sensations and the external objects, that is with the the representations of objects by the perceptions caused by them, in other words, what kind of truth are we to describe to our ideas and perceptions ? (Based on Leo Koenigsberger: Hermann von Helmholtz).- Horblit No 49b - Garrison & M. No 1513. - ‎

‎Ueber Diffusion. (Fick). (+ Helmholtz:) Ueber Zusammensetzung von Spectralfarben. (Theilweis vorgetragen in der Zusammenkunft der British Association zu Hull in September 1854).‎

‎Leipzig, Johann Ambrosius Barth, 1855. Without wrappes. In: ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", 94. Bd., No 1 (""Heft"" No 1, 1855). Pp. 1-176 a. 4 folded engraved plates. (Entire issue offered). Titlepage to vol. 94 (small stamp on verso). Fick's paper: pp. 59-86. Helmholtz's paper: pp. 1-28. Clean and fine.‎

‎First appearance of Fick's importent paper in molecular physics in which he annouced his two laws of diffusion.Fick's first law relates the diffusive flux to the concentration field, by postulating that the flux goes from regions of high oncentration to regions of low concentration, with a magnitude that is proportional to the concentration gradient (spatial derivative). - Fick's second law predicts how diffusion causes the concentration field to change with time. (Wikipedia).First appearance of HELMHOLTZ'S fundamental paper in physiological optics in which he examined the sensitivity of the eye for the individual elements of the violet end of the spectrum" he was able to detect a whole series of distinct tones of purple: he alters the name 'invisible rays' to that of 'ultra-violet rays'" discussion of the relations of the wavelenghts of complementary colours and the intensity required if the mixture of simple complementarity colours is to produce white. He answered these questions quantatively. ""THE TREATISE (the paper offered), WHICH HAS BEEN FUNDAMENTAL FOR ALL LATER WORK OF THE SAME KIND, concludes with an inquiry into the validity of Newton's Colour Circle, which Helmholtz designates as one of the most brilliant inspirations of that great thinker.""(Leo Koenigsberge ""Hermann von Helmholtz"" pp. 131-133).‎

‎Ueber die Dauer und den Verlauf der durch Stromesschwankungen inducirten elektrischen Ströme. (On the Duration and Course of the Electrical Currents induced by Variation of an Inducing Current).‎

‎Leipzig, Johann Ambrosius Barth, 1851. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Bd. 83, Viertes Stück.(= Heft No. 8 of 1851). (The entire issue offered (Heft 2 of vol. 83 with titlepage to vol. 83). Pp.469-600 a. 2 engraved plates. Helmholtz's paper: pp. 505-540. Clean and fine.‎

‎First appearance of this paper in which Helmholtz for the first time measures and gives the mathematical formula for the duration of induced electrical currents and thus distinguished with mathematical accuracy from those due to nerve-action.""In (the offered paper) he begins by stating a mathematical law, which he had verified by a long and difficult series of experiments. By means of this law F. neumann was enabled to solve the problem he had previously laid aside, as to the distribution of current in a copper disk rotating below the two poles of a magnet......After Helmholtz had extended this exponiential law mathematically to divided circuits, he tested it experimentally by means of a new type of galvanic contact-key, which madeit possible to vary the interval between the opening and closing of any current, as required.""(Koenigsberger ""Hermann von helmholtz"", pp. 79-80).‎

‎Physiologische Wärmeerscheinungen. Bericht ""über die Theorie der physiologischen Wärmeerscheinungen für 1845"" (Report on the Work done on the Theory of Animal Heat in 1845).‎

‎Berlin, G. Reimer, 1847. Contemp. hcalf, profusely gilt spine. Light wear along edges. XXXII,622 pp. In: ""Fortschritte der Physik im Jahre 1845. Dargestellt von der physikalischen Gesellschaft zu Berlin"". I. Jahrgang. Redigirt von G. Karsten. XXXII,622 pp. A stamp on titlepage. Helmholtz's paper: pp. 346-355. Clean and fine.‎

‎First appearance of this milestone paper which represents the first, and most importent, step towards his great work laid down in ""Über die Erhaltung der Kraft"", 1847. This is Helmholtz' FIRST PAPER ON THE CONSERVATION OF FORCE""At the beginning of October, 1846, Helnmholtz sent a 'Report on Work done on the Theory of Animal Heat for 1845', at du Bois' request, to the ""Fortschritte der Physik"", issued by the Physical Society. (the paper offered). This was merely an abstract from the article in the Encyclopaedic Dictionary.....BUT IT ANTICIPATES MORE DEFINITELY THE CONDCLUSIONS OF HIS GREAT WORK. He states without hesitation that the material theory of heat is no longer tenable, and that a kinetic theory must be substituted for it, since heat originates in mechanical forces, either directly by friction, or indirectly from an electrical current produced by themotion of magnets. This conception of heat as a motion involves the conclusion that mechanical, electrical and chemical forces must always be the definite equivalent of one and the same energy, whatever the mode by which one force is transformed into another. The empirical confirmation of this law must be the imperative duty of physicists and physiologists.""(Leo Koenigsberger in ""Hermann von Helmholtz"", pp. 34-35).""In the ""Fortschritte der Physik"" for 1845, which appeared in 1847, Helmholtz published a report on theories of physiological heat which he later acknowledged as belonging to his work on the conversation of force.""(Jungnickel & McCormach ""Intellectual Masteryof Nature, Vol. 1, p. 157).‎

‎Théorie physiologique de la musique fondée sur l'étude des sensations auditives traduit de l'allemand par M.G. Guéroult avec le concours pour la partie musicale de M. Wolff -- PREMIERE EDITION FRANCAISE EN PARTIE ORIGINALE -- BEL EXEMPLAIRE‎

‎P., Masson, 1868; in 8 relié en demi-chagrin rouge, dos orné de fers dorés (reliure de l'époque), 544pp., 57 figures dans le texte‎

‎---- BEL EXEMPLAIRE ---- PREMIERE EDITOIN FRANCAISE EN PARTIE ORIGINALE REVUE ET AUGMENTEE PAR HELMHOLTZ : "Pour pouvoir répondre moi-même, autant que possible, de la fidélité de la traduction, j'ai revu les épreuves et même en quelques endroits j'ai fait des modifications au texte original ou ajouté des éclaircissements. De même, à la fin du volume, il a été ajouté quelques nouveaux suppléments relatifs à des questions de physique ou de mathématique". (Préface de H. HELMHOLTZ) ---- "HELMHOLTZ's theory of hearing upon which all modern theories of resonance are based. This exhaustive study of acoustics ranks as one of the greatest books on the subject and shows that Helmholtz was, besides being a great physicist and physician, an accomplished musician". (Garrison N° 1562 1st german ed.) ---- "HELMHOLTZ'greatest achievement in physiological acoustics lay in formulating the resonance theory of hearing... He incorporated all these results in his great work Die lehre von den Tonempfindungen als physiologische Grundlage für die Theorie der Musik...". (DSB VI pp. 241/253)**2630/C2-2632/CART3-2633/CART3-2634/CART4‎

‎Die Lehre von den Tonempfindungen als physiologische grundlage fur die Theorie der Musik -- BEL EXEMPLAIRE‎

‎Braunschweig, Vieweg, 1896, un volume in 8 relié en demi-chagrin noir (reliure de l'époque), 1 portrait, 22pp., 675pp., figures dans le texte‎

‎---- BEL EXEMPLAIRE ---- "An exhaustive study of acoustics - A great work" ---- Cinquième édition ----"Helmholtz's theory of hearing upon which all modern theories of resonance are based. This exhaustive study of acoustics ranks as one of the greatest books on the subject and shows that Helmholtz was, besides being a great physicist and physician, an accomplished musician". (Garrison N 1562 1st ed.) ---- "Helmholtz'greatest achievement in physiological acoustics lay in formulating the resonance theory of hearing... He incorporated all there results in his great work Die lehre von den Tonempfindungen als physiologische Grundlage fur die Theorie der Musik...". (DSB VI pp. 241/253)**2631/M4‎

‎Helmholtz G. On the preservation of force (physical examination)./Gelmgolts G. O‎

‎Helmholtz G. On the preservation of force (physical examination)./Gelmgolts G. O sokhranenii sily (fizicheskoe issledovanie).. E6‎

‎Helmholtz G. The rate at which nerve arousal spreads./Gelmgolts G. Skorost raspr‎

‎Helmholtz G. The rate at which nerve arousal spreads./Gelmgolts G. Skorost rasprostraneniya nervnogo vozbuzhdeniya.. E6‎

‎Revue d'Histoire des Sciences - Tome XXXIX - n°4 - Octobre-décembre 1986 , (Sur la Comète de Halley et son retour en 1986 - Valeur actuelle de l'acoustique musicale de Helmholtz - La correspondance de René-François de Sluse, essai de répertoire chronologique - Une élégante solution au problème des longitudes : Les horloges de marine de Ferdinand Berthoud)‎

‎Presses Universitaires de France - P.U.F. , Centre International de Synthèse - Revue d'Histoire des Sciences Malicorne sur Sarthe, 72, Pays de la Loire, France 1986 Book condition, Etat : Bon broché, sous couverture imprimée éditeur blanche, titre en bleu et noir grand In-8 1 vol. - 95 pages‎

‎quelques figures dans le texte en noir et blanc 1ere édition, 1986 Contents, Chapitres : 1. Articles : René Taton : Sur la Comète de Halley et son retour en 1986 - Patrice Bailhache : Valeur actuelle de l'acoustique musicale de Helmholtz - Anne-Cathrine Bernès et Pascal Lefèbvre : La correspondance de René-François de Sluse, essai de répertoire chronologique (III, 9eme partie) - 2. Documentation : Danielle Fauque : Une élégante solution au problème des longitudes : Les horloges de marine de Ferdinand Berthoud - Comptes rendus - René-François Walter de Sluse, né à Visé (Belgique) le 2 juillet 1622 et décédé le 19 mars 1685 (à 62 ans) à Liège, est un abbé de l'Abbaye de la Paix-Dieu à Amay, et mathématicien liégeois de renom. (source : Wikipedia) couverture à peine jaunie avec quelques rousseurs discrètes, sinon bel exemplaire, intérieur frais et propre - paginé 289 à 383‎

‎Historical Studies in the Physical and Biological Sciences - Volume 35, Part 1 (2004) , (Helmholtz and the shaping of the American physics elite in the Gilded Age - The emergence of the principle of symmetry in physics - Quantum theory and the electromagnetic world-view - The protean nature of Stanford University's biological sciences, 1946-1972 - A proton accelerator in Trondheim in the 1930s - On a recent article by Seiya Abiko - Reply to Olivier Darrigol)‎

‎University of California Press, History of Science and Technology , Historical Studies in the Physical and Biological Sciences Malicorne sur Sarthe, 72, Pays de la Loire, France 2004 Book condition, Etat : Bon paperback, editor's white wrappers, title in blue grand In-8 1 vol. - 174 pages‎

‎few black and white illustrations and text-figures 1st edition, 2004 Contents, Chapitres : David Cahan : Helmholtz and the shaping of the American physics elite in the Gilded Age - Shaul Katzir : The emergence of the principle of symmetry in physics - Suman Seth : Quantum theory and the electromagnetic world-view - Eric Vettel : The protean nature of Stanford University's biological sciences, 1946-1972 - Roland Wittje : A proton accelerator in Trondheim in the 1930s - Olivier Darrigol : On a recent article by Seiya Abiko - Seiya Abiko : Reply to Olivier Darrigol a dark spot on the top right corner of the wrappers, quite nothing, else near fine copy, no markings - pages 1 to 174‎

‎Mémoire sur la conservation de la force. Précédé d'un exposé élémentaire de la transformation des forces naturelles. Traduit de l'allemand par Louis Pérard‎

‎Paris, Victor Masson, 1869, in-8, III-137 pages, Broché, couvertures d'origine, Première édition française de cet important traité. Par "force", Helmholtz, qui titrait ce traité originellement publié en allemand en 1847 "Über die Erhaltung der Kraft", entend "énergie". Jeune physiologiste alors peu connu, Hermann von Helmholtz (1821-1894) fait émerger ici le principe de conservation de l'énergie, à la fois sur des bases philosophiques et physiques, et il met en évidence deux principes nouveaux : la force vive et la force de tension, ébauches de l'énergie cinétique et de l'énergie potentielle. "It drew heavily on the works of Sadi Carnot, Clapeyron, Holzmann, and Joule, although it was far more comprehensive than those previous treatise". Helmholz exerça une influence considérable sur la pensée scientifique du XIXe siècle, non seulement pour le succès de ses travaux, menés dans les domaines les plus variés (énergie, optique, épistémologie, électrodynamique...), mais aussi pour ses qualités de professeur et de pédagogue, qui tenta de rendre ses connaissances accessibles au plus grand nombre avec ses "conférences populaires" ("Populare wissenschaftlische Voträge"). Norman I, 1039 ; DSB VI, pp. 241 et suiv. ; Dibner, Herald & Science n° 159 (pour l édition originale allemande). Exemplaire non rogné. Couverture rigide‎

‎Bon III-137 pages‎

‎Untersuchungen über Dämpfe und Nebel, besonders über solche von Lösungen. - [FIRST APPEARANCE OF THE OSTWALD-FREUNDLICH EQUATION.]‎

‎Leipzig, Johann Ambrosius Barth, 1885. 8vo. As extracted. In ""Annalen der Physik und Chemie"" 263, no 4. Entire issue offered. Traces from old back-strip. Internlly fine and clean. [Helmholtz's paper:] Pp. 508-543. [Entire issue:] Pp. 481-680 + 3 folded plates. ‎

‎First appearance of Helmholtz’s dissertation in which the German physicist derived the Ostwald–Freundlich equation and showed that Kelvin's equation could be transformed into the Ostwald–Freundlich equation. The German physical chemist Wilhelm Ostwald derived the equation apparently independently in 1900" however, his derivation contained a minor error which the German chemist Herbert Freundlich corrected in 1909. The Ostwald–Freundlich equation governs boundaries between two phases specifically, it relates the surface tension of the boundary to its curvature, the ambient temperature, and the vapor pressure or chemical potential in the two phases.‎

‎Über die auf das Innere magnetisch oder elektrisch polarisirter Körper wirkende Kräfte.‎

‎Berlin, Akademie der Wissenschaften, 1881. Uncut in orig. printed wrappers. In: ""Monatsbericht der Königlichen Preussischen Akademie der Wissenschaften zu Berlin."" Februar issue 1881. Pp. 117-274 a. 2 plates. (Entire issue offered). Helmholtz's paper: pp. 191-213.‎

‎First appearance of this importent paper on the electromagnetic theory, proposing a complete theory of the phenomenon that insulators tend to alter their shape under the influence of dielectric forces.... ""Helmholtz finally concludes from the expression for the forces, that the two views - that, namely, which postulates forces acting at a distance, and that of Farady-Maxwell, according to which there is only polarization of the media - may thus exist side by side."" (Koenigsberger, pp. 329-30).The issue contains Rudolf Virchow's paper ""Über die ethnologische Bedeutung des Os malare bipartitum"", pp. 230-267 and 1 folded lithographed plate.‎

‎Ueber Integrale der hydrodynamischen Gleichungen, welche den Wirbelbewegungen entsprechen,‎

‎Berlin, Georg Reimer, 1858. 4to. Extracted from ""Journal für die reine und angewandte Mathematik Crelle/Borchardt"", 55. Band, 1. Heft.: 3. Pp. 25-55 and with titlepage to volume 55. A bit of browning to outer corners of titlepage.‎

‎Firsi printing of Helmholtz' seminal paper on the hydrodynamics of vortex motion, which is the first detailled analysis of fluid motion not constrained to being irrotational - being his most importent contribution to mathematical physics. The paper was the direct inspiration for J.J. Thomson's ""vortex atom"" (See Pais ""Inward Bound"", pp. 176 ff).""In 1857, in a work of genius that proved him to be a mathematician of first rank 'On the Integrals of the Hydrodynamic Equations which express Vortex-motion' (the paper offered), he gave the solution of some extremely difficult hydrodynamical problems. He rejected the earlier hypotheses, and followed up the analogies between the motion of fluids and the electromagnetic action of electrical currents, which were of such much importence for his subsequent work on the Theory of Electricity and Magnetism.""Leo Koenigsberger, p. 167 ff.)""In 1858 Helmholtz published his seminal memoir ""Ueber Integrale der hydrodynamischen Gleichungen, welche den Wirbelbewegungen entsprechen,"" important for both its physical results and its mathematical methods. His motivations for taking up this new research interest remain unclear. One motive seems, however, to have been his interest in frictional phenomena, carried over from his interest in energetics"" another was his growing awareness of the power of Green’s theorem.""(DSB).Parkinson ""Breakthroughs"", 1858 P.‎

‎Le son et la musique suivis des causes physiologiques de l'harmonie musicale par H. HELMHOLTZ‎

‎P., Baillière, 1886, un volume in 8 relié en pleine toile éditeur, (cachets de bibliothèque), (2), 208pp., 50 figures dans le texte‎

‎---- Troisième édition ---- Nature du son - Propagation du son - Intensité du son - Hauteur du son - Les sons et les accords musicaux - Sirène d'Helmholtz - Accords parfaits - Histoire des gammes - Le timbre - Les écoles musicales - Causes physiologiques de l'harmonie musicale**606/L3+605.CAV.F5‎