Background
Johann Heinrich Lambert was born at Berlin on August 26. He was the son of a tailor; and the slight elementary instruction he obtained at the free school of his native town was supplemented by his own private reading.
(This book was originally published prior to 1923, and rep...)
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
http://www.amazon.com/gp/product/B009F7JP6E/?tag=2022091-20
( This is a reproduction of a book published before 1923....)
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Lamberts Photometrie: Hft. 1.th. Das Directe Licht. 2.th. Die Schwächung Des Lichts Durch Durchsichtige Körper, Besonders Durch Glas; Volume 1 Of Lamberts Photometrie: (Photometria, Sive De Mensura Et Gradibus Luminis, Colorum Et Umbrae)(1760); Ernst Anding; Issues 31-33 Of Ostwald's Klassiker Der Exakten Wissenschaften Johann Heinrich Lambert Ernst Anding W. Engelmann, 1892 Photometry
http://www.amazon.com/gp/product/1295106337/?tag=2022091-20
(This book was originally published prior to 1923, and rep...)
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
http://www.amazon.com/gp/product/B009UVOZOM/?tag=2022091-20
Johann Heinrich Lambert was born at Berlin on August 26. He was the son of a tailor; and the slight elementary instruction he obtained at the free school of his native town was supplemented by his own private reading.
He was the son of a tailor; and the slight elementary instruction he obtained at the free school of his native town was supplemented by his own private reading.
He became book-keeper at Montbeliard ironworks, and subsequently (1745) secretary to Professor Iselin, the editor of a newspaper at Basel, who three years later recommended him as private tutor to the family of Count A. von Salis of Coire.
In 1759, after completing with his pupils a tour of two years' duration through Gottingen, Utrecht, Paris, Marseilles and Turin, he resigned his tutorship and settled at Augsburg.
Munich, Erlangen, Coire and Leipzig became for brief successive intervals his home.
His development of the equation xm--px = q in an infinite series was extended by Leonhard Euler, and particularly by Joseph Louis Lagrange.
In 1761 he proved the irrationality of 7r; a simpler proof was given somewhat later by Legendre.
The introduction of hyperbolic functions into trigonometry was also due to him.
His geometrical discoveries are of great value, his Die frcie Perspective (1759- 1774) being a work of great merit.
Astronomy was also enriched by his investigations, and he was led to several remarkable theorems on conics which bear his name. The most important are: (1) To express the time of describing an elliptic arc under the Newtonian law of gravitation in terms of the focal distances of the initial and final points, and the length of the chord joining them. (2) A theorem relating to the apparent curvature of the geocentric path of a comet. Lambert's most important work, Pyrometrie (Berlin, 1779), is a systematic treatise on heat, containing the records and full discussion of many of his own experiments. Worthy of special notice also are Photometria (Augsburg, 1760), Insigniores orbitae cometarum proprietates (Augsburg, 1761), and Beitrage zum Cebrauche der Mathematik und deren Anwendung (4 vols. , Berlin, 1765 - 1772). The Memoirs of the Berlin Academy from 1761 to 1784 contain many of his papers, which treat of such subjects as resistance of fluids, magnetism, comets, probabilities, the problem of three bodies, meteorology, &c. In the Acta Helvetica (1752 - 1760) and in the Nova acta erudita (1763 - 1769) several of his contributions appear. In Bode's Jahrbuch (1776 - 1780) he discusses nutation, aberration of light, Saturn's rings and comets; in the Nova acta Helvetica (1787) he has a long paper " Sur le son des corps elastiques, " in Bernoulli and Hindenburg's Magazin (1787 - 1788) he treats of the roots of equation and of parallel lines; and in Hindenburg's Archiv (1798- 1799) he writes on optics and perspective.
(This book was originally published prior to 1923, and rep...)
(This book was originally published prior to 1923, and rep...)
( This is a reproduction of a book published before 1923....)
Lambert was an assistant to his father (a tailor), a clerk at a nearby iron works, a private tutor, secretary to the editor of Basler Zeitung and, at the age of 20, private tutor to the sons of Count Salis in Chur.
