Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing many of these classic works in affordable, high quality, modern editions, using the original text and artwork.

Pr�sentation de l'�diteur

Originally published in 1947, this book was written to provide an introductory survey of the developments in electromagnetic waves. Although the propagation of electromagnetic waves in metal tubes - wave-guides - had been studied for over fifty years prior to the publication of this book, the subject was primarily of theoretical interest. The treatment in this book reflects the movement away from the theoretical to a more practical interest in waves during the war, with the development of the first micro-wave radar equipment in 1940–1. The first six chapters are based on courses on microwave techniques, which were given during the war at the Radar School of the Telecommunications Research Establishment, whilst chapter seven is a mathematical treatment of the subject. This book will be of great value to scholars of the history of physics and electromagnetics.

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Description de la librairie

**Please note our transit times are from the date of dispatch.** We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first purchase with us, or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

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We ask all customers to contact us for authorisation should they wish to return their order. Orders returned without authorisation may not be credited.
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Orders are shipped from our UK warehouse. Delivery thereafter is between 4 and 14 business days. Please contact us if you have any queries about our services or products.

Frais d?exp�dition de Royaume-Uni�vers�Etats-Unis

Frais d?exp�dition de Royaume-Uni�vers�Etats-Unis
Quantit� command�e	10 � 17 jours ouvr�s	10 � 17 jours ouvr�s
Premier article	EUR 5.72	EUR 5.72

Les d�lais de livraison sont fix�s par les vendeurs et varient en fonction du transporteur et du lieu. Les commandes transitant par les douanes peuvent �tre retard�es et les acheteurs sont responsables de tous les droits ou frais associ�s. Les vendeurs peuvent vous contacter au sujet de frais suppl�mentaires afin de couvrir toute augmentation des co�ts d'exp�dition de vos articles.