David stenquist (23 risultati)

Condizione: New.

Condizione: New. In English.

Condizione: New.

Condizione: New. In English.

Taschenbuch. Condizione: Neu. Neuware.

Buch. Condizione: Neu. Neuware - A historical account of a magnetic storm that occurred on September 25, 1909. The storm caused widespread disruption and was one of the first recorded instances of its kind.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 is in the 'public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…

PAP. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Condizione: New. Print on Demand.

HRD. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Condizione: New. Print on Demand.

Paperback / softback. Condizione: New. This item is printed on demand. New copy - Usually dispatched within 5-9 working days.

LeatherBound. Condizione: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 124. A perfect gift for your loved ones. Reprinted from 1914 edition. 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. 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. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. 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. Language: English Pages: 124.…

LeatherBound. Condizione: NEW. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 114. A perfect gift for your loved ones. Reprinted from 1914 edition. 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. 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. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. 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. Language: English Pages: 114.…

HRD. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Condizione: New. PRINT ON DEMAND.

Condizione: New. Print on Demand.

Condizione: New. Print on Demand.

Condizione: New. PRINT ON DEMAND.

Stockholm, R.W. Statlanders Boktryckeri, 1935 + 1930. Large 4to. 2 vols in original printed wrappers. 1st part with some spine wear and a bit of wear to corners. Wrappers of second part with a bit of light brownspotting. Both parts with stamps to front wrappers and title-pages, library markings to wrappers, and printed tape-strips across wrappers, all from the Danish Meteorological Institute (from the archive of which this set has been sold directly). 79 + 17 pp. Richly illustrated. First printing of Stenquist's landmark work on earth currents, which includes his seminal scientific description of the great storm of May 1921 that has turned out to be one of the most significant reports in the history of geomagnetic storms and space weather. The work is of fundamental importance to extreme weather forecasting and is a classic in the field. "The most spectacular (and most dangerous) examples of GIC impact were two destructive fires-the first in Sweden around 02:00 GMT on 15 May and the second in the United States around an hour later. The Swedish event occurred in a telephone exchange in the town of Karlstad, 260 km west of Stockholm. This event was widely reported around the world. It was also the subject of contemporary study by David Stenquist, a Swedish scientist and engineer, who had a long interest in what we would now call GIC impacts on telecommunications systems. One of his narrative reports on the event is included in his 1925 memoir on earth currents (Stenquist, 1925), and another is reproduced by Karsberg et al. (1959). They both outline how the operators at Karlstad exchange first experienced problems (equipment anomalies and faint smoke) around 01:00, followed by a period of quiet, before the main fire started around 02:00 leading to extensive equipment damage. Stenquist also highlighted a near-miss incident at Ånge, some 380 km north west of Stockholm, that was simultaneous with the Karlstad fire. This experienced a threat similar to that fire, but where the initial problems were sufficient to trigger preventive measures that avoided major damage. In his later analysis of the Karlstad fire (Albinson, 2018" Engström, 1928" Stenquist, 1925), Stenquist noted that this site was vulnerable to strong GIC, because it was on the 400 km route of the major communications lines between Oslo and Stockholm, and this route was vulnerable because of its east-west orientation. His insights into engineering design of the communications lines enabled him to estimate the geoelectric fields that created the damaging GIC. He showed that fields of at least 6 V/km were required to cause the observed melting of fuses, "tubes de fusion," in copper wires, and that a field of 20 V/km would have caused more damage than observed (melting of fuses in iron wires). As a result he suggested that 10 V/km would be a reasonable estimate of the average geoelectric field in central Sweden at the time of the Karlstad fire." (Hapgood). "Over the past decade the public perception of space weather has changed markedly so that it is now considered a major societal risk alongside other natural hazards including pandemic disease, extremes of temperature, coastal and river flooding, earthquakes, and volcanic activity. As a result of this step change in public perception, improved understanding of severe space weather, and its impacts, is now a vital element in the scientific evidence sought by policy-makers responsible for societal resilience. Those policy-makers require information on both the likelihood, and the adverse impacts, of severe space weather, just as they do for other natural hazards. Only then can they integrate space weather into wider plans to ensure societal resilience against the whole range of natural hazards.A key element in this evidence is the likely timelines of extreme space weather events. Such knowledge enables us to build scenarios that give insights into the spatial and temporal distribution of adverse impacts, and into the information that will be available to enable timely decision-making before, during and after an extreme event. They are also vital for exercises to test mitigation plans and to train key personnel in government and industry. Scenarios are also critical inputs for realistic studies on the socio-economic impact of space weather.This study addresses one route to scenario development, namely, a review of previous severe space weather events, and specifically focuses on one outstanding case, the great storm of 13-16 May 1921, and particularly the very intense activity on 14/15 May." (Mike Hapgood: Space Weather. The Great Storm of May 1921: An Exemplar of a Dangerous Space Weather Event).…

Hardback. Condizione: New. This item is printed on demand. New copy - Usually dispatched within 5-9 working days.

Leather Bound. Condizione: New. Language: English. 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 1914. 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: - 118, 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. 118 118.…

Leather Bound. Condizione: New. Language: English. 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 1914. 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: - 114, 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. 114 114.…