‎Versuche zur Feststellung einer oberen Grenze für die kinetische Energie der elektrischen Strömung.‎

‎Leipzig, Johann Ambrosius Barth, 1880. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 10, 7. Heft With Titlepage to vol. 10.. Pp. 337-512 a. 1 folded plate, (entire issue offered ""Heft"" 7). Hertz's paper: pp. 414-448.‎

‎First printing of Hertz's first paper by which he won the Philosophical Faculty Prize (Berlin) in 1879, earning a medal, a first publication in Annalen der Physik and Helmholtz' deepening respect.""To encourage experimental work in the notoriously difficult domain of unclosed currents, Helmholtz proposed for the prize of the Berlin Philosophical Faculty in 1878 a problem dealing with an implication of Weber’s theory: when oscillations of electricity are set up in an unclosed circuit, Weber’s hypothetical electrical inertia should reveal itself in a retardation of the oscillations. Through the experiments that Helmholtz had suggested on the self-induction of doubly wound spirals, Hertz won the Philosophical Faculty prize"" he proved that the inertia of electricity is either zero or less than a very small value, thereby lending experimental support to Helmholtz’ theoretical judgment of the improbability of Weber’s theory.""(DSB).‎

‎Ueber die Grundgleichungen der Electrodynamik für bewegte Körper.‎

‎Leipzig, Johann Ambrosius Barth, 1880. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 41, 11. Heft. Pp. 369-640 (entire issue offered, Heft 11). Hertz's paper: pp. 369-399. cLEAN AND FINE.‎

‎First edition of this importent paper in which Hertz went beyond Maxwell and hereby took the first step on the way to RELATIVITY THEORY.In his second theoretical paper (the paper offered), Hertz applied Maxwell’s equations to moving, deformable bodies. Maxwell had not treated this problem systematically in the Treatise although, unknown to Hertz, he had done so elsewhere. Hertz recognized that to develop an electrodynamics of moving bodies, it was first necessary to specify whether or not the ether moves with bodies. For his part he would assume that the ether is mechanically dragged by moving bodies. The first ground for this assumption was that within the restricted domain of electromagnetic phenomena there was nothing incompatible with the idea of a dragged ether. The second ground was that its denial entailed the complication that two sets of electric and magnetic vectors had to be assigned to each point of space, one for the ether and one for the independently moving body. He recognized at the same time that a dragged ether was an unsure foundation for electrodynamics....""(DSB).Schilpp ""Einstein"" pp. 31 ff. - Whittaker ""A History of the Theories of Aether and Electricity"", pp. 328 ff.‎

‎Ueber die Einwirkung einer geradlinigen Schwingung auf eine benachbarte Strombahn. (+) Ueber Inductionserschneinungen, hervorgerufen durch die electrischen Vorgänge in Isolatoren. (Aus den Sitzungsber. der Berl. Acad. vom 10. Nov. 1887, mit einem Zusa...‎

‎Leipzig, Johann Ambrosius Barth, 1888. Conemp. hcalf. 5 raised bands, gilt spine and gilt lettering to spine. A few scratches to spine. Small stamp on verso of first -and general- titlepage and small stamps to verso of plates. ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 34,. VIII,1048 pp. a. 8 folded engraved plates. (Entire volume offered). Hertz' papers: pp. 155-170, pp. 273-285, pp. 551-569, pp. 609-623.‎

‎First appearance of 4 famous and importent papers (2 of them in their final form) in which Hertz established by experiments the similarities between electric waves and light waves.""Hertz followed up his determination of the finite velocity of electric waves by performing a series of more qualitative experiments in 1888 on the analogy between electric and light waves. Passing electric waves through huge prisms of hard pitch, he showed that they refract exactly as light waves do. He polarized electric waves by directing them through a grating of parallel wires, and he diffracted them by interrupting them with a screen with a hole in it. He reflected them from the walls of the room, obtaining interference between the original and the reflected waves. He focused them with huge concave mirrors, casting electric shadows with conducting obstacles. The experiments with mirrors especially attracted attention, as they were the most direct disproof of action at a distance in electrodynamics. They and the experiments on the finite velocity of propagation brought about a rapid conversion of European physicists from the viewpoint of instantaneous action at a distance in electrodynamics to Maxwell’s view that electromagnetic processes take place in dielectrics and that an electromagnetic ether subsumes the functions of the older luminiferous ether."" (DSB)-. ‎

‎Ueber sehr schnelle electrische Schwingungen. (+) Nachtrag zu der Abhandlung über sehr Schnelle electrische Schwingungen.‎

‎Leipzig, Johann Ambrosius Barth, 1887. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 31, 7. Heft. With the titlepage to vol. 31. Pp. 337-544 a. 2 folded plates, (entire issue offered ""Heft"" 7). Hertz's paper: pp. 421-448 A. PP. 543-544. A Stamp on titlepage and verso of. Clean and fine.‎

‎First edition of Hertz's seminal paper on electromagnetic waves in which he empirically demonstrates Maxwell's equations. This discovery and its demonstration led directly to the invention radio of communication, television and Radar. The paper is the ""ANNOUNCEMENT OF THE DISCOVERY OF THE PRODUCTION BY ELECTRICAL DISCHARGE OF WAVES WHICH HAVE THE PROPERTY OF VERY LONG WAVES""(H.M. Evans).Hertz demonstrates what Maxwell had predicted that electromagnetic waves radiated in space with the speed of light. Hertz determined these waves to be of greater length than light and that they could be reflected.""Experimental proof by Hertz of the Faraday-Maxwell hypothesis that electrical waves can be projected through space was begun in 1887, eight years after Maxwell's death. The two main requirements were (a) a method of producing the waves, supposing that they existed, and (b) a method of detecting them once they were produced."" (PMM, 377.). In the present paper Hertz ""describes the apparatus that he had devised for the detection and measurement of electromagnetic waves, the key to his later success. To prove that electromagnetic waves can be projected through space it was necessary to devise a means of both producing the waves and, more difficult at the time, of detecting them once produced."" (Norman Library, No. 1123).""Hertz's researches on electrical waves vindicated the Helmholtz ideal of the physicist as one whose competences embraced both experiment and mathematics. Hertz entered physics at the right time for one of his abilities to make a critical contribution"" because the outstanding problem of physics was the disorderly condition of electrodynamics, what was needed was someone with the theoretical power to analyze the competing theories and with the experimental judgment to produce the evidence that would persuade the physical community that a decision between the theories had been reached."" (DSB, VI, 348b.)""In the early 1890's the young inventor Guglielmo Marconi read of Hertz's electric wave experiments in an Italian electrical journal and began considering the Possibility of communication by wireless waves. Hertz's work initiated a technological development as momentous as it physical counterpart."" (DSB, VI, 349a.).‎

‎Sciences de la Vie et de la Terre 6e‎

‎Hachette Collections 2020 208 pages 20 8x1 2x27 6cm. 2020. Broché. 208 pages.‎

5 Images

‎Bon état‎

‎A Place in History: Social and Monumental Time in a Cretan Town (Princeton Studies in Culture/Power/History)‎

‎Princeton University Press 1991 326 pages 15 494x2 286x23 114cm. 1991. Broché. 326 pages.‎

4 Images

‎Comme neuf‎

‎Recherches sur les quantités de chaleur dégagées dans les combinaisons chimiques. Lettre de M. Hess à M. Arago.‎

‎(Paris, Bachelier), 1840. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome X, No. 19. Pp. (721-) 775 (entire issue offered). Hess' paper: pp. 759-763. A few scattered brownspots.‎

‎First apperance of the announcement of Hess' newly discovered law, known as Hess's Law, in form of a letter to Arago. ""Here thermochemistry received its first importent advance at the hands of Germain Hess, who showed that the heat evolved in a reaction is the same regardless of whether the reaction is carried out directly or in a number of steps..."" (Leicester & Klickstein ""A Source Book in Chemistry"", pp. 329-332). This announcement preceded the larger paper published the same year in ""Annales de Chimie et de Physique"" and the original (and larger) paper in ""Bulletin scientifique, Academie impériale des Sciences (St. Petersbourg)"". Parkinson ""Breakthroughs"" 1840 C.‎

‎Recherches sur les quantités de chaleur dégagées dans les combinaisons chimiques. (Lettre à M. Arago).‎

‎Paris, Fortin, Masson et Cie, 1840. 8vo. Contemp. hcalf. Spine gilt and with gilt lettering. Some scratches to spine. In: ""Annales de Chimie et de Physique"", 2e series, tome 74. 448 pp., 1 folded plate. Hess' paper: pp. 325-335. Stamps on verso of titlepage. Internally clean.‎

‎First edition of Hess's most famous paper, in which he outlined his law on thermochemistry. His principle, a progenitor for the first law of thermodynamics, came to be called Hess's law. It states that in a series of chemical reactions, the total energy gained or lost depends only on the initial and final states, regardless of the number or path of the steps. This is also known as the law of constant heat summation. Hess described here his newly discovered law, known as Hess's Law, in form of a letter to Arago. (The letter was also published in Comptes Rendus in a slightly modified form). ""Here thermochemistry received its first importent advance at the hands of Germain Hess, who showed that the heat evolved in a reaction is the same regardless of whether the reaction is carried out directly or in a number of steps..."" (Leicester & Klickstein ""A Source Book in Chemistry"", pp. 329-332). This paper preceded the larger papers also published in ""Annales de Chimie et de Physique"" and the original (and larger) paper in ""Bulletin scientifique, Academie impériale des Sciences (St. Petersbourg, 1840)"". The volume contains also papers by Laurent, Biot, Mulder, Melloni etc.Parkinson ""Breakthroughs"" 1840 C.‎

‎Die Berner Alpen.‎

‎O.O,. O.J. (um 1880). Farbige Lithographie auf Papier, auf Leinen aufgezogen. Bildformat: 65 x 171 cm.‎

‎Panorama der Berner Alpen vom Wellhorn bis zur Blümlisalp von Bentely-Studer a.d. Jahrbuch d. S.A.C. - Einige kleinere Schadstellen, in der Mitte gefaltet.‎

‎Voorbereyding tot het weerdig ontvangen der HH. Sakramenten binnen den algemeenen jubilé genadiglyk toegestaen door Z.H.den paus Pius IX in het jaer o.h. J.-C.1850. Vyftien nieuwe meditatien met eene onderwyzing over den jubilé‎

‎, Brussel, J.-B. De Mortier, 1850, XVI + 239pp., gecart.band met lederen rug (titel en deocraties in goudopdruk), 20cm., mooie staat‎

‎MY LAND & MY PEOPLE‎

‎Srishti. 1999. In-12. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur acceptable. 271 pages. Illustré de nombreuses photos en noir et blanc hors texte.. . . . Classification Dewey : 420-Langue anglaise. Anglo-saxon‎

‎Memoirs of His Holiness the Dalai Lama. Classification Dewey : 420-Langue anglaise. Anglo-saxon‎

‎Sancti Hieronymi Presbyteri [3 volumes] I: Commentarioli in Psalmos, II: Tractatus sive Homiliae in Psalmos, in Marci evangelium aliaque varia argumenta, III: Tractatus novissime reperti (sive Homiliae in Pasalmos quattuordecim)‎

‎Maredsoli [Maredsous] & Oxoniae [Oxford], 1895-1903 3 volumes, xx,114 + 423 + xxi,203 pp., 25cm., solid uniform hardcover bindings in blue half-cloth and marbled boards, marbled endpapers, stamp on title page, text is clean and bright, text in Latin, published in the series "Anecdota Maredsolana seu Monumenta Ecclesiasticae Antiquitatis ex Mss. Codicibus nunc primum edita aut denuo illustrata" Volume III pars 1-2-3 ("edidit, commentario critico instruxit, prolegomena et indices adiecit D. Germanus Morin"), good condition, weight: 2.3kg., R116568‎

‎The War of American Independence: Military Attitudes Policies and Practice 1763-1789 (Northeastern Classics Edition)‎

‎Northeastern University Press 1983 521 pages 14 9x22 3x3 7cm. 1983. Broché. 521 pages.‎

‎Bon Etat couverture un peu défraîchie intérieur propre‎

‎Grand siecle peintures françaises du xviie siecle‎

‎RMN 1993 in4. 1993. Cartonné jaquette.‎

‎Très bon état avec sa jaquette intérieur propre bonne tenue‎

‎Grundzüge der theoretischen Logik.‎

‎Berlin, Springer, 1928. Orig. full cloth. Lower part of spine with loss of cloth. Lower right cornerof titlepage cut away, no loss of letters. VIII,120 pp.‎

‎First edition. (Die Grundlehren der Mathematischen Wissenshaften in Einzeldarstellungen, Band XXVII). In the years 1917-22 Hilbert gave three seminal courses at the Univeristy og Göttingen on logic and the foundation of mathematics. He received considerable help in preperation and eventual write up of these lectures from Bernays. This material was subsequently reworked by Ackermann into the monograph 'Grundzüge der Theoretischen Logik' (the offered item). It containes the first exposition ever of first-order logic and poses the problem of its completeness and the decision problem ('Entscheidungsproblem'). The first of these questions was answered just a year later by Kurt Gödel in his doctorial dissertation 'Die Vollständigkeit der Axiome des logischen Funktionenkalküls'. This result is known as Gödel's completeness theorem. Two years later Gödel published his famous 1931 paper 'Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme I' in which he showed that a stronger logic, capable of modeling arithmetic, is either incomplete or inconsistent (Gödel's second incompleteness theorem). The later question posed by Hilbert and Ackermann regarding the decision problem was answered in 1936 independantly by Alonzo Church and Allan Turing. Church used his model the lambda-calculus and Turing his machine model to construct undecidable problems and show that the decision problem is unsolvable in first-order logic. These results by Gödel, Church, and Turing rank amongst the most important contributions to mathematical logic ever.‎

‎Grundzüge der theoretischen Logik.‎

‎Berlin, Springer, 1928. 8vo. Uncut in orig. printed wrappers. VIII,120. With the name of Bent Schultzer (Former Danish professor in philosophy) on first leaf. Internally clean.‎

‎First edition. (Die Grundlehren der Mathematischen Wissenshaften in Einzeldarstellungen, Band XXVII). In the years 1917-22 Hilbert gave three seminal courses at the Univeristy og Göttingen on logic and the foundation of mathematics. He received considerable help in preperation and eventual write up of these lectures from Bernays. This material was subsequently reworked by Ackermann into the monograph 'Grundzüge der Theoretischen Logik' (the offered item). It containes the first exposition ever of first-order logic and poses the problem of its completeness and the decision problem ('Entscheidungsproblem'). The first of these questions was answered just a year later by Kurt Gödel in his doctorial dissertation 'Die Vollständigkeit der Axiome des logischen Funktionenkalküls'. This result is known as Gödel's completeness theorem. Two years later Gödel published his famous 1931 paper 'Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme I' in which he showed that a stronger logic, capable of modeling arithmetic, is either incomplete or inconsistent (Gödel's second incompleteness theorem). The later question posed by Hilbert and Ackermann regarding the decision problem was answered in 1936 independantly by Alonzo Church and Allan Turing. Church used his model the lambda-calculus and Turing his machine model to construct undecidable problems and show that the decision problem is unsolvable in first-order logic. These results by Gödel, Church, and Turing rank amongst the most important contributions to mathematical logic ever.‎

‎Miscellaneous Observations made during a tour in May, 1835, to the Falls of the Cuyahoga, near lake Erie: exctracted from the Diary of a Naturalist.‎

‎New Haven, A.H. Maltby and Herrick & Noyes, 1837). Contemp. hcalf. Gilt spine. Light wear to titlelabel with gilt lettering. Slightly rubbed. In: ""The Amrican Jounal of Science and Arts. Conducted by Benjamin Silliman"", Vol. 31.- January, 1837. Engraved portrait (Dr. Prince). VIII,428 pp. and 1 folded map, 4 engraved plates (partly folded). The entire volume offered. Hildreth's paper: pp. (1-) 84 a. 20 woodengraved textillustrations (maps, fossils, startigraphy). Apart from a brownspots in upper margin of the first 7 leaves, a fine clean copy.‎

‎First appearance of this classic travel account from Ohio, mainly describing the geology and teh fossils of the area. - Sabin: 31796.‎

‎Va te rhabiller ! policier ‎

‎ in-8 cartonnage éditeur avec sa jaquette - 1957 - 248p - Ed. nrf. Gallimard - coll. Série Noire‎

‎bon état (petites déchirures sur les bords de la jaquette) ‎

‎Recalled to Life: A Dalziel and Pascoe novel‎

‎HarperCollins 2003 400 pages 10 4x3 4x17 8cm. 2003. Broché. 400 pages.‎

4 Images

‎Bon état‎

‎DISQUE VINYLE 33T TOI FEMME PUBLIQUE, JE TE DONNE, EN L'AN 2001, UN CADEAU DU CIEL, LE GEANT DE PAPIER, JE T'AIME A L'ITALIENNE, EMBRASSE-MOI IDIOT, MARIE MA VIE, CHERI CHERI LADY, RAMBO, CHA CHA CHA, L'ESTATE STA FINENDO, HOT SHOT, READY TO DANCE...‎

‎ALINE MUSIC. non daté. In-12. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. Pochette en couleurs, hit energie. Disque en anglais.. . . . Classification : 410-33 Tours‎

‎Disque n°AL 1005 Classification : 410-33 Tours‎

‎History of the Arabs‎

‎ 1974 - broché - St. Martin's Press, New York - Dixième édition - 1974 - Fort in-8 (21,5 x 14,5 cm) broché - 822 pages - Iconographie en noir et blanc - Ouvrage sous titré : From the earliest times to the present - Texte en anglais ‎

‎Assez bon état - Couverture quelque peu défraîchie (plis et frottements) ‎

‎Ueber die Wanderungen der Ionen während der Elektrolyse. Erste-Zweite und Dritte Mittheilung (+) Rechtfertigung seiner Mittheilungen ""Ueber Wanderungen der Ionen"". Elektrolyse einer lösung zweier Salze. (4 papers).‎

‎Leipzig, Johann Ambrosius Barth, 1853, 1856, 1858, 1859. Without wrappers in ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Dritte und Vierte Reihe, Bd. 89 No. 6 u. 7, Bd. 98 No 5, Bd. 103 No 1, Bd. 106 No. 3. The 5 entire issues offered. Hittorf's papers pp. 177-211 (Bd. 89), pp. 1-33 (Bd.98), pp. 1-56 (Bd.103), pp.337-411 a. 513-586 (Bd. 106). In all 7 engraved plates. All issues fine and clean.‎

‎First printing of all 4 fundamental papers on electrochemistry, where Hittorf states his concepts of ionic migration and transport numbers, concepts that should be the foundation stones of the later evolved theory of ionization, culminating in Svante Arrhenius's famous discovery of electrolytic dissociation.""After Faraday's experimental investigations in 1834, it was accepted that the electricity passing through an electrolytic cell was carried by the movement of charged ions produced from the decomposition of the compounds making up the solution. Daniell had extended these ideas in 1839 and showed that salts were compounds not of acid anhydrides and metallic oxides as had been thought, but of metallic cations and elemental or compound acid anions. Believing that the conductivity of solutions was due to these ions, he began a study of their transference. In 1853 Hittorf took up the problem. He extended the ideas of Daneill by reasoning inthe following manner: Cations and anions exist in solutions and migrate under the influence of current through the solution. The migration of the cation toward the cathode and away from the anode, and the deposition of the anode on the positive electrode, together result in a decrease of teh salt in the neighborhood of the anode. A similar analysis shows that there is also a decrease in the concemtration of the salt in the neighborhood of the cathode. If the motion of the two dissimilar ions were the same, the decrease in the concentration of the salt would be the same at the two electrodes.....Hwe concluded that the speeds of migration...were different and he characterized this fact by defining ""transport numbers"", which specified the portion of the transport of electricity carried by each ion. (DSB VI, p. 439). - Leicester & Klickstein ""A Source Book of Chemistry"", p. 400-406.In the 2 issues of 1853 are contained 2 papers by Helmholtz of fundamental cjharacter, both in physiology and on the theory on the conservation of energy. HERMAN HELMHOLTZ: ""Ueber einige Gesetze der Vertheilung elektrischer Ströme in körperlichen Leitern mit Anwendung auf die thierisch-elektrischen Versuche (+) Ueber einige Gesetze....(Schluss). 2 papers. 1853. (Bd. 89 No.6 a. 7). Pp. 211-233 a. pp. 353-377.""In this work (the papers offered) Helmholtz for the first time enters the field of mathematical physics and physiology, with the full equipment of the higher mathematical analysis, of which he was the only master in its application to the latter science.....This very interesting and fundamental work on the distribution of electrical currents in material conductors is purely mathematical in character, owing to Helmholtz's method of proving the theorems, which are intelligible enough from the physical point of view, It is essentially connected with the treatise on the CONSERVATION OF ENERGY, since helmholtz merely substitutes for the expression 'free tension' there employed, the identical concept of Gauss's potentia, or Green's potential function.""(Koenigsberger in ""Hermann von helmholtz"", p. 99-103.).‎

‎Tenormottetten von Johannes Regis in der uberlieferung des Chigi-Kodex I: Commentario ed analisi. II: Edizione dei motetti.‎

‎Turnhout, Brepols, 2000 Paperback, 420 p., 170 x 240 mm. ISBN 9782503508610.‎

‎Die Arbeit beschaftigt sich mit einer Werkgruppe, uber die es bisher kaum zuverlassige Untersuchungen gibt, obwohl ihre zentrale Bedeutung fur die Entwicklung der Motette in der zweiten Halfte des 15. Jahrhunderts unumstritten ist. Die funfstimmigen Tenormotetten von Johannes Regis (ca. 1435-ca. 1495) bilden die alteste Gruppe dieser Werke, entstanden nach isorhythmischen Werken von Guillaume Dufay und in einem Block in der fast alle Ockeghem-Messen uberliefernden Prachthandschrift Chigi zusammengefasst. Im ersten Teilband steht die Analyse der satztechnischen Genese der Motetten im Mittelpunkt. Die methodologische Grundlage der Analyse bilden die theoretischen Arbeiten von Ernst Apfel, deren Ergebnisse hier zum erstenmal konsequent fur die Beschreibung der Satzgestaltung angewandt werden. Der zweite Teilband beinhaltet eine kritische Edition der Tenormotetten von Johannes Regis. Eine ausfuhrliches Quellenverzeichnis und ein umfangreiches Register schliessen die Arbeit ab. Languages: German.‎