‎LA STRUCTURE DES ATOMES ET DES MOLECULES‎

‎MASSON ET CIE. 1964. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 466 pages. Quelques schémas et tableaux en noir et blanc, dans le texte.. . . . Classification Dewey : 530-Physique‎

‎Préface de M. Haïssinsky. Classification Dewey : 530-Physique‎

‎Les ions d'hydrogène- Signification, mesure, applications, données numériques‎

‎Gauthier-Villars et cie. 1926. In-8. Broché. A relier, Livré sans Couverture, Dos abîmé, Papier jauni. 321 pages. Quelques rousseurs. 100 figures en noir et blanc, in texte. Plats et dos manquants. Partiellement désolidarisé.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎Grundzüge der Einsteinschen Relativitätstheorie.‎

‎Lpz., 1921. III,198 pp.‎

‎Die variablen Absättigungselemente der Atome. Beitrag zur Kenntnis der elektrischen und magnetischen Vorgänge.‎

‎Zittau, Vereinigte Druckereien (Paul Gutte), 1919, in-4to, 274 S., Original-Broschüre. (Seltene Original-Ausgabe).‎

‎On the Change of Form of Long Waves advancing in a Rectangular Canal, and on a New Type of Long Stationary Waves.‎

‎London,Taylor and Francis, 1895. 8vo. Contemp. hcalf. Gilt lettering to spine. A stamp at foot of titlepage. In: No wrappers. In: ""The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science"", Vol. XXXIX, Fifth Series. VI,(1),552 pp. a. 7 plates. The paper: pp. 422-443. Internally clean and fine.‎

‎First appearance of the paper in which the authors set forth the equation which bears their name.The equation is named for Diederik Korteweg and Gustav de Vries who studied it, though the equation first appears in Boussinesqs work, 1877.""In mathematics and physics, a soliton is a self-reinforcing solitary wave (a wave packet or pulse) that maintains its shape while it travels at constant speed. Solitons are caused by a cancellation of nonlinear and dispersive effects in the medium.... Solitons arise as the solutions of a widespread class of weakly nonlinear dispersive partial differential equations describing physical systems. The soliton phenomenon was first described by John Scott Russell (1808-1882) who observed a solitary wave in the Union Canal in Scotland. He reproduced the phenomenon in a wave tank and named it the ""Wave of Translation"".Scott Russell's experimental work seemed at odds with Isaac Newton's and Daniel Bernoulli's theories of hydrodynamics. George Biddell Airy and George Gabriel Stokes had difficulty accepting Scott Russell's experimental observations because they could not be explained by the existing water wave theories. Their contemporaries spent some time attempting to extend the theory but it would take until the 1870s before Joseph Boussinesq and Lord Rayleigh published a theoretical treatment and solutions. In 1895 Diederik Korteweg and Gustav de Vries provided what is now known as the Korteweg-de Vries equation, including solitary wave and periodic cnoidal wave solutions."" (Wikipedia).‎

‎Les Forces de Valence et les Spectres de röntgen. deux Mémoires sur la Structure Electronique de l'Atome. Traduit par M. Golay.‎

‎ P., Albert Blanchard, 1922, in 8° relié demi-toile noire moderne à la bradel, dos lisse avec titre doré, 70 pages ; figures ; coins légèrement émoussés. ‎

‎PHOTOS sur DEMANDE. ...................... Photos sur demande .......................... ‎

‎Tiefseeforschung. Expedition S.M. Schiff "Pola" in das Rothe Meer nördliche Hälfte. Tle. 1-2 u. Südliche Hälfte. Tle. 10-12 in zus. 5 Bdn. ‎

‎Wien, Kaiserlich-Königliche Hof- und Staatsdruckerei, 1898-99, gr. in-4°, Mit zus. 9 dplblgr. Taf. u. 4 mehrf. gefalt Ktn. Läd. OU. (Deckel tls. lose u. randrissig). ‎

‎(= Berichte der Commission für oceanographische Forschungen). Einzige Ausgabe. - Enthält die Reisebeschreibung der Österreichischen Tiefseeforschungs-Expedition ins Rote Meer. - Nachdem im Jahr 1894 eine Serie von fünf Tiefseeforschungen im östlichen Mittelmeer mit reichen Ergebnissen zum Abschluß kam, wurde der Entschluß gefasst, eine weitere ozeanische Tiefseeuntersuchung im Roten Meer zu unternehmen. Image disp.‎

‎Le monde des ultrasons. Traduit par Paul Kolodkine.‎

‎ P., Editeurs Français Réunis, 1955, in 12 broché, 145 pages ; figures dans le texte. ‎

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

‎Introduction à la physique des intérieurs stellaires Collection Monographies Dunod‎

‎Dunod. 1970. In-12. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 207 pages.. . . . Classification Dewey : 530-Physique‎

‎Etiquette sur coiffe en pied. Tampon bibliothèque. Collection Monographies Dunod. Classification Dewey : 530-Physique‎

‎Initiation à la Théorie de la Relativité.‎

‎ 1964 Paris, PUF (Collection "La Science Vivante"), 1964, in 12 broché, 180 pages ; traces de ruban adhésif sur la couverture et les gardes. ‎

‎Exemplaire enrichi d'un envoi autographe signé sur le faux-titre. ...................... Photos sur demande .......................... ‎

‎Rotational structure in the spectra of diatomic molecules Sommaire: Foundations of a theory of diatomic molecules; Intensity distribution in rotational bands; Perturbations in the spectra ...‎

‎Adam Hilger. 1969. In-8. Relié. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 320 pages.. . . . Classification Dewey : 530-Physique‎

‎Etiquette sur coiffe en pied. Tampon bibliothèque. Texte écrit en anglais. 2 photos disponibles. Sommaire: Foundations of a theory of diatomic molecules; Intensity distribution in rotational bands; Perturbations in the spectra ... Classification Dewey : 530-Physique‎

‎Gebräuchliche Winkel-,Längen- und Geschwindigkeitsmasse im Schiesswesen. Mit einer Figurentafel und 23 Figuren im Texte.‎

‎Wien, Seidel & Sohn, 1906. Contemp. clothbacked boards. Original printed frontwrapper pasted on frontboard. Stamp on titlepage. XI,95 pp., 2 plates.‎

‎Afhandling om en Deel Contradictioner, som findes i det sædvanlige Systema over Materien og de sammensatte Ting.‎

‎(København, 1754). 4to. In recently blue paper covered card board binding with white paper-label title-label to front board. Previous owner's name to pasted down front end-paper. Annotations to front free end-paper. Without wrappers as issued in ""Videnskabernes Selskabs Skrifter"", nice and clean copy. Pp. 189-216.‎

‎First edition of Kraft’s paper on contradictions in traditional theories of matter and composite substances. Kraft argues that the traditional physics and metaphysics is filled with contradictions, particularly regarding the divisibility of matter, the nature of space and time and the structure of reality. He suggests that Leibniz’s theory of monads or a similar concept of fundamental indivisible units provides a more consistent framework for understanding the physical world. The present paper is a fine example of 18th-century Enlightenment debates on the nature of matter, space and time,‎

‎Betænkninger over Neutons og Cartesii Systemata, tilligemed nye Anmærkninger over Lyset.‎

‎(København, 1747). 4to. In a later half calf binding with gilt lettering to spine. Previous owner's name to pasted down front end-paper. Without wrappers as issued in ""Videnskabernes Selskabs Skrifter, III. Del, 1747"". A nice and clean copy. Pp. 213-296. + 3 engraved plates. ‎

‎First edition of one of Kraft's earliest and most important works, being a preliminary study to his seminal ""Forelæsninger over Mekanik"" (1763). It also constitute one of the earliest introductions to Newton in Danish.In 1747, he became a member of the Academy of Sciences, same year as the present thesis was published. Here, he takes a stand in favor of Newton against Descartes, in contrast to his admired teacher C. v. Wolff. Kraft concluded that while the Cartesian system was unreasonable and even inconsistent, Newton's physics perfectly aligned with the most reliable experiences, including the best astronomical observations. Furthermore, the Newtonian system was superior from a methodological standpoint, as it contained fewer hypotheses and was more simple and well-ordered than the Cartesian alternative.‎

‎Forelæsninger over Mekanik med hosføiede Tillæg (+) Forelæsninger over Statik og Hydrodynamik med Maskin=Væsenets Theorier som Anden Deel af Forelæsningerne over Mekaniken. 2 vols. ‎

‎Sorøe, Jonas Lindgren, 1763 - 1764. 4to. Uniformly bound in two contemporary full sprinkled calf bindings with five raised bands. ""Söe Cadet Accadem:"" embossed to front boards. Wear to extremities, head of spines chipped and parts of the gilting worn off. A few annotations to front free end-paper in both volumes. Small stamp to upper outer corner on title-page in both volumes. Internally very nice and clean. (28), 656, (4) pp. + 14 folded engraved plate"" (16),1000 pp. + 47 folded engraved plates.‎

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‎First edition of the most significant Danish physics work of the 18th century, being the first systematic exposition of Newtonian physics and mathematics in Denmark. Here he provides a systematic presentation of Newtonian physics and calculus. ""Kraft’s best-known work is a textbook on theoretical and technical mechanics (1763-1764). The book, written in an easy and fluent style, contains a series of lectures baied on Newtonian principle. Each lecture is provided with a supplement giving a more advanced mathematical exposition of the subject matter. In Denmark this work gave theoretical physics a firm basis as an academic subject, while its large section on machines stimulated the expansion of industry. The book was favorably received abroad and was trans. lated into Latin and German."" (DSB) Jens Kraft (1720–1765) was a Dano-Norwegian mathematician and philosopher. He was born in Frederikshald in Norway.While still a student in Copenhagen, he was influenced by Christian Wolff, having attended one of Wolff’s lectures during a visit to Halle. Later he was appointed professor of philosophy at the Sorø Academy, where he responded to Baumgarten’s Metaphysica with his own work, Metaphysik. Both philosophers structured their works into four divisions: Cosmologie, Ontologie, Psykologie, and Naturlig Theologie. Kraft distinguished between time and eternity asserting that “the finite can never attain eternity, but it can attain infinite time (Aevum), a time with a beginning but without an end.” In contrast, the infinite possesses true permanence. Biblioteca Danica II, 53.‎

‎Overensstemmelse imellem visse Principia af Physik og Metaphysik.‎

‎(Copenhagen, 1754). 4to. In recently blue paper covered card board binding with white paper-label title-label to front board. Previous owner's name to pasted down front end-paper. Without wrappers as issued in ""Videnskabernes Selskabs Skrifter"", a nice and clean copy. Pp. 249-254.‎

‎First edition of Kraf’s paper in which he explores the relationship between principles of physics and metaphysics attempting to bridge the gap between Newtonian physics and Leibnizian metaphysics.‎

‎Intensities of Spectral Lines on the Application of the Quantum Theory to the Problem of the relative Intensities of the Components of the fine Structure and of the Stark Effect of the Lines of the Hydrogen Spectrum.‎

‎Kbhvn., Andr. Fred. Høst, 1919. 4to. Orig. printed wrappers. pp. 287-384,(2) as offprint from Memoires de L'Academie Royale des Sciences et des Letteres de Danemark, and 4 plates. Small rubberstamp on title and frontwr. Light wear to lower backstrip, effecting lower left corner of frontwr.‎

‎First edition of Kramer's doctorial thesis. Karmer was Niels Bohr's first assistent when Bohr's Institute opened in 1920, later he returned to Utrecht and became sucessor to Ehrenfest. - The frequency of spectral lines did not coincide with a kinetic frequency of electrons, but was only partly explained by Bohr's correspondence principle. Kramer developed here in this work the mathematical formalism required to unite these ideas, leading to an interpretation of the intensities of Stark Components.‎

‎Intensities of Spectral Lines on the Application of the Quantum Theory to the Problem of the relative Intensities of the Components of the fine Structure and of the Stark Effect of the Lines of the Hydrogen Spectrum. - [KRAMERS THE DOCTORAL THESIS]‎

‎København, Andr. Fred. Høst, 1919. 4to. Uncut, unopened in the original printed wrappers. Offprint from ""Memoires de L'Academie Royale des Sciences et des Letteres de Danemark"". Light miscolouring to extremities. Otherwise a very fine and clean copy. Pp. 287-384, XVI + 4 plates.‎

‎Offprint issue of Kramer's doctorial thesis. Kramer was Niels Bohr's first assistent when Bohr's Institute opened in 1920, later he returned to Utrecht and became sucessor to Ehrenfest. - The frequency of spectral lines did not coincide with a kinetic frequency of electrons, but was only partly explained by Bohr's correspondence principle. Kramers developed here in this work the mathematical formalism required to unite these ideas, leading to an interpretation of the intensities of Stark Components.""In his 1919 dissertation, Kramers calculated in detail the intensities and polarizations of the hydrogen spectral lines, including Zeeman and Stark effects. His results were in good, if not perfect, agreement with experimental data"". (Kragh, Quantum Generations, P. 157).‎

‎Intensities of Spectral Lines. On the Application of the Quantum Theory to the Problem of the relaive Intensities of the Components of the Fine Structure and of the Stark Effect of the Lines of the Hydrogen Spectrum. With four Plates.‎

‎København, Høst & Søn, 1919. 4to. Orig.printed wrappers. (Offprint issue from ""D. Kgl. Danske Videnskabernes Selskab. Skr. Nat. Vid og Math. Afd. 8. Række, III.3.). Pp. 285-384,(2) a. 4 plates. Lower margin of frontwrapper faded.‎

‎Fist printing of Kramer's doctoral thesis in which he calculated the relative intensities of the fine-structure components on the Basis of Bohr's Correspondence Principle and obtained results which generally agreed with Paschen's measurements.Bohr had concluded ""that polarizations and intensities should, in the limit of high quantum numbers, be given by the Fourier components of the quantized motion and that even at low quantum numbers the Fourier components in the initial and final states should give an indication of the intensities to be expected. In his doctoral thesis at Leiden in 1919 (published by the Royal Danish Academy of Sciences) - the paper offered - Kramers developed the mathematical formalism required to apply these ideas"" he also carried out detailed calculations for the case of a hydrogen atom in an external electric field. This led to a satisfactoery interpretation of the intensities of Stark components.""(H.B.G. Casimir in DSB VII, p. 491).‎

‎Forelæsninger over Experimental-Physiken, udkastede. (Oversat af H.C.H. Sandrue)‎

‎Kiöbenhavn, Schultz, 1791. Velbevaret samtidigt hldrbd. med rygforgyldning. (4),180 pp. Lille stempel nederst på titelblad. Rent, frisk eksemplar.‎

‎Den sjældne originaludgave af den første danske oversættelse af Kratzensteins ""Systema physicae experimentalis..."". Han blev på foranledning af Leonhard Euler ansat som ""Mechanicus"" ved Akademiet i St. Petersburg i 1748 og blev 5 år senere udnævnt til professor i København. Kratzenstein er mest kendt for sine experimenter over elektricitetens virkninger på forskellige områder, bl. indenfor medicinen (således var han den første, som ved hjælp af gnisten fra en Leydner-flaske, kurerede en paralyseret finger, og således grundlæggeren af elektro-terapien), og han var den første fysiker overhovedet, som søgte at udfinde forholdet mellem den elektriske kraft of dens virkningsafstand, på samme måde som gravitet er en simpel funktion af afstand. - Bibl. Danica II:108. - Poggendorff I:1314 (the German edition from 1758).‎

‎Forelæsninger over Experimental-Physiken, udkastede. (Oversat af H.C.H. Sandrue)‎

‎Kiöbenhavn, Schultz, 1791. Samtidigt hldrbd. Forgyldt skindtitel. papirsetiket påsat øverst på ryg. Stempler på titelbladet. (4),180 pp. Nogle få spredte brunpletter.‎

‎Den sjældne originaludgave af den første danske oversættelse af Kratzensteins ""Systema physicae experimentalis..."". Han blev på foranledning af Leonhard Euler ansat som ""Mechanicus"" ved Akademiet i St. Petersburg i 1748 og blev 5 år senere udnævnt til professor i København. Kratzenstein er mest kendt for sine experimenter over elektricitetens virkninger på forskellige områder, bl. indenfor medicinen (således var han den første, som ved hjælp af gnisten fra en Leydner-flaske, kurerede en paralyseret finger, og således grundlæggeren af elektro-terapien), og han var den første fysiker overhovedet, som søgte at udfinde forholdet mellem den elektriske kraft of dens virkningsafstand, på samme måde som gravitet er en simpel funktion af afstand. - Bibl. Danica II:108. - Poggendorff I:1314 (the German edition from 1758).‎

‎Eine spektroskopische Bestätigung der Isotopen des Chlors.‎

‎Berlin, Springer, 1920. 8vo. Bound in contemporary half cloth with gilt lettering to spine. In ""Zeitschrift für Physik"", Bd. 3, 1920. Entire volume offered. Library stamp to front free end paper and title page, light wear to extremities. Pp. 460-465. [Entire volume: IV, 476 pp.].‎

‎First printing of Kratzer's important paper in which he first presented the discovery of isotopes of chlorine.‎

‎Band Spectra and Molecular Structure.‎

‎Cambridge, The University Press, 1930. 8vo. Publishers full cloth. A very good copy. Provenance: Signature to half title of physicist Christian Møller (author of 'The Theory of Relativity', 1952). X,163,(1) pp.‎

‎First edition. ‎

‎Quantenmechanik, Bandenspektren und Molekülbau. Mit 19 Fig.‎

‎Leipzig, 1934. Orig. printed wrappers. Backstrip with tears. 68 pp. Offprint from ""Handbuch der Radiologie"" Bd. VI/2.‎

‎Die ersten Gründe der Naturlehre auf eine leichte und angenehme Art zum Gebrauch der Jugend und Anfänger.‎

‎Halle und Helmstädt, Carl Hermann Hemmerde, 1759. Contemp. full calf. Richly gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on top of spine. Stamps on title-page. Enraved portrait (Krüger). (14),370,(30) pp.‎