runge carl david tolmé (13 résultats)

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Buch. Etat : Neu. Neuware - This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.

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222 x 154 mm. 8vo. Pages 93-113; (114)-118; (119)-131. [Entire volume: viii, 792, 50 pp.] Tables, 1 fig.; tables; tables. Quarter cloth, marbled boards, gilt spine. Blind stamp of the Carnegie Institution of Washington Solar Observatory. Fine. In 1885, at the Hannover Technical University, Heinrich Kayser, working with Carl Runge, "began his investigations in the field of spectroscopy. In his Handbuch der Spektroskopie (1900) he described the purpose of his investigations: It is certain that the light is produced by the motions of the molecules or of the particles or of their electrical charges. It was expected that chemical elements would be similar to a certain extent in the structure of their spectra according to their periodic classification. Balmer was the first who derived a real result of regularity in the distribution of the wave numbers of the spectral lines of hydrogen. It was hoped that similar laws would be detected for other elements. "Kayser and Runge began these investigations at about the same time that Rydberg began working along the same lines. Kayser and Runge determined the spectra anew, using a Rowland concave grating, and found the results to be much more reliable from this method; Rydberg evaluated the existing older measurements anew. The investigations showed that for many elements a regular structure could indeed be demonstrated. For the alkali metals (lithium, sodium, potassium, rubidium, cesium), all known spectra lines could be settled at three series described very accurately by equations of the same structure; these formulas were also interrelated. Furthermore, an important relation between the atomic weight and the structure of the spectra was discovered. Kayser and his co-worker learned not only that the spectra of these five related elements were ordered by the same plan, according to the increasing atomic weight. "Kayser and Runge next investigated, with similar results, the alkali earths and also some metals of the groups IB and IIB of the periodic table of elements. The regularity was not so perfect in this case, however. Kayser said that the number of irregular lines grows as one proceeds in the natural system of elements. He emphasized that the formulas he and his associate had found in Hannover, as well as those of Rydberg, were only empirical and far from the discovery, through the structure of the spectra, of the behavior of the atoms. In his criticism of Rydberg, Kayser was always willing to acknowledge the merits of Rydberg's work. From the vantage of today, the work of Rydberg and of Kayser and Runge was indispensable to the atomic theory brought forth twenty-five years later by Rutherford and Bohr. [Emphasis added.] Although Kayser provided the solid experimental foundation for this theory with his experiments - he was the experimenter, Runge the theorist - Rydberg, full of ideas and speculations, was more successful in formulating the spectra equations; hence the name Rydberg constant. Nevertheless, Kayser and Runge's lists of the exact frequencies of many spectral lines guarantee their place in the history of science." [Emphasis added.] DSB, VII, pp. 267-268.

LeatherBound. Etat : New. LeatherBound edition. Condition: New. Reprinted from 1902 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. Pages: 56 As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 56 Language: German.

Leather Bound. Etat : New. Language: German. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2024, utilizing the invaluable guidance of the original edition published many years ago in 1902. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - German, Pages: : - 56, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 56.

4to. 1/2 p. Beileidsschreiben an Arnold Sommerfeld: [] Meine Frau, die Kinder und ich trauern mit Ihnen um Ihren lieben Jungen []".

LeatherBound. Etat : New. LeatherBound edition. Condition: New. Reprinted from 1921 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. Pages: 208 As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 208 Language: German.

LeatherBound. Etat : New. LeatherBound edition. Condition: New. Reprinted from 1900 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. Pages: 214 As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 214 Language: German.

Leather Bound. Etat : New. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2024, utilizing the invaluable guidance of the original edition published many years ago in 1912. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages: - 172, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 172.