hartsoeker (8 Ergebnisse)

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: New. KlappentextrnrnThis is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the origina.

Zustand: New. KlappentextrnrnThis is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the origina.

Zustand: New.

Couverture rigide. Zustand: Bon. Nicolas HARTSOEKER-Suites des conjectures physiques-1708,Amsterdam chez Henri Desbordes-libraire dans le Klaver-ftraat-In-8(18,7 x 23,7 cm),150 pages-Reliure demi-chagrin rouge moderne à plat jaspé-lettrines et culs de lampe-5 planches hors texte,7 figures in texte-contenu du livre:discours 1 sur la digestion-discours 2 de la structure admirable du coeur-discours 3 de la circulation du sang-discours 4 de la respiration-discours 5 de la nature et de l'usage des glandes-discours 6 de la nutrition et de l'accroissement-discours 7 de la génération-Epître à Jean Guillaume prince palatin du rhin,errata,table des matières-ETAT: traces d'auréoles suite à mouillure sur la tête de tranche et débordant sur les feuillets sans incidence sur la bonne lecture,papier peu jauni de bonne texture,pas d'ex-libris,pas de rousseurs,pas de déchirures,bon exemplaire.

A Paris, Chez Jean Anisson Directeur de l'Imprimerie Royale, rue Saint Jacques , vis-à-vis les Maturins, ., 1694, 4°, (24), pp. 1-179, (2), 180-233, (1) pp., numerous woodcuts and 1 moon map, contemporary leather binding; fine copy. Rare First Edition! Invention of the screw-barrel simple microscope! "Hartsoeker's Essay de Dioptrique is his first publication and the culmination of 20 years of lens grinding and instrument making, including not only time as an independent craftsman but also his years working in the Paris observatory. It is also the first expression of his developing work in natural philosophy. Hartsoeker was living in Paris at the time he wrote Essay de Dioptrique and had acquired a European reputation for lens-craft and instrument making. Unlike most other European lens makers, Hartsoeker made no secret of his craft and the Essay de Dioptrique gives long, detailed descriptions of all aspects of lens making. Beyond the technical details of lenscraft, he includes his notions regarding the nature of light and the reasons for and processes of reflection and refraction, and his telescopic and microscopic observations and their interpretation. Given the range of material covered, the work's title is, perhaps, too diminutive." Hartsoeker's treatment of technical details is thoroughly mathematical, written in the style of textbook, and his practical and mechanical descriptions are informed by his long and deep experience. His natural philosophy is significantly more speculative and, particularly when interpreting his own telescopic and microscopic observations, opened a door for considerable criticism. The interpretations he gave to some of his microscopical observations were influenced by 'animalculist' beliefs. It is in this regard that he makes his famous conjecture, provided with an accompanying and equally famous figure, that a tiny, preformed human resides in a spermatozoon. A Dutch translation appeared at Amsterdam in 1699." David DiLaura " The Essay Dioptrique contains 10 chapters. Chapter 1: nature and origin of light rays. Chapter 2: opaque and transparent bodies. Chapter 3: rectilinear light rays. Chapter 4: on reflection and refraction. Chapter 5: the radiant point. Chapter 6: the eye. Chapter 7: vision. Chapter 8: making glass lenses. Chapter 9: proper use of lenses. Chapter 10: observations made with telescopes and microscopes." David DiLaura "Hartsoeker considers light a fiery liquid, one of the two substances that make up all matter. Opaque or transparent bodies are made up of the second substance; its particulate arrangement allowing, or not, the passage of light at a finite speed that depends on the body's density. Mechanical forces are invoked to explain reflection and refraction, and these same forces, varying with different rays, cause different colors as they strike the organ of vision.' Color are produced by the interaction of rays with materials, culling some rays, enhancing others; thus the color appearance of objects. The material on ocular anatomy is contemporary and that on vision is Keplerian. The material on lens making is very detailed and includes: the proper chemical composition of glass; glass forming and its difficulties; glass types; grinding, figuring, polishing, and testing lenses. Hartsoeker describes grinding lenses in metal forms, rather than turning on a lathe. The construction of spectacles, telescopes, and microscopes are also described in detail, including examples of the calculations necessary to determine lens radii, spacing, and size. The last chapter included reports of Hartsoeker's extensive observations with a microscope of his own construction, including his famed description of spermatozoa." David DiLaura Starting as a lens maker in Rotterdam, he was instructed in optics by Antonie van Leeuwenhoek. In 1674, he and a fellow student, assisted by Van Leeuwenhoek, were the first to observe semen, a situation that would later lead to a .

Couverture rigide. Zustand: Bon. [20]-236 pp. Paris, Chez Jean Anisson, 1696, in-8, [20]-236 pp, demi-veau marbré moderne, dos à faux nerfs, pièce de titre grenat, tranches mouchetées, Première édition de ces "Principes" du grand astronome, géomètre et physicien hollandais Nicolas Hartsoeker (1656-1725). Dans cette oeuvre de physique universelle, il étudie les éléments qui composent l'univers, la formation de la Terre et des planètes, le phénomène de la pesanteur, les propriétés des corps solides et liquides, la formation du Soleil, des étoiles fixes et la nature du feu, le mouvement de la terre et des planètes, le flux et reflux de la mer, la nature et les propriétés de l'aimant, les volcans et les tremblements de terre, les vents, les météores, l'origine des fontaines, des puits et des rivières. Hartsoeker enseigna sa physique à d'illustres élèves parmi lesquels Pierre le Grand. Tous ses traités furent rédigés en français et ne furent souvent traduits, même en langue flamande, que beaucoup plus tard. Sa correspondance avec Fontenelle, qui le soutenait contre les attaques de ses adversaires, ainsi que quelques démonstrations sur l'invalidité du système de Newton, auquel il était violemment opposé, ne seront publiées qu'après sa mort. DSB VI, p. 149.