Siemens combined his engineering brilliance with entrepreneurial skills to develop a business whose activities at an early stage nearly spanned the globe. Siemens held a multinational vision almost from the start. The Siemens firms were unique in that, rather than starting small then slowly growing and branching out, they were from their inception international organizations. The story of Siemens is a vital part of the history of industrialization in Europe. It will make fascinating reading for scholars and students of German history, business history, and the history of technology.

After an overview of major scientific discoveries of the 18th and 19th centuries, which created electrical science as we know and understand it and led to its useful applications in energy conversion, transmission, manufacturing industry and communications, this Circuits and Systems History book fills a gap in published literature by providing a record of the many outstanding scientists, mathematicians and engineers who laid the foundations of Circuit Theory and Filter Design from the mid-20th Century. Additionally, the book records the history of the IEEE Circuits and Systems Society from its origins as the small Circuit Theory Group of the Institute of Radio Engineers (IRE), which merged with the American Institute of Electrical Engineers (AIEE) to form IEEE in 1963, to the large and broad-coverage worldwide IEEE Society which it is today. This second edition, commemorating the 75th anniversary of the Circuits and Systems Society, builds upon the first edition's success by expanding the scope of specific chapters, introducing new topics of relevance, and integrating feedback from readers and experts in the field, reflecting the evolving landscape of Circuits and Systems alongside the evolution of the professional society. Many authors from many countries contributed to the creation of this book, working to a very tight time schedule. The result is a substantial contribution to their enthusiasm and expertise, which it is hoped readers will find both interesting and useful. It is certain that in such a book, omission will be found, and in the space and time available, much valuable material had to be left out. It is hoped that this book will stimulate an interest in the marvelous heritage and contributions of the many outstanding people who worked in the Circuits and Systems area.

Diplomatic reports from the German Empire (Berlin), Baden and Hesse (Darmstadt), Saxony (Dresden), Württemberg (Stuttgart), and Bavaria (Munich).

This book, which will appeal to all with an interest in the history of radiology and physics, casts new light on the life and career of Wilhelm Conrad Röntgen, showing how his personality was shaped by his youth in the Netherlands and his teachers in Switzerland. Beyond this, it explores the technical developments relevant to the birth of radiology in the late nineteenth century and examines the impact of the discovery of X-rays on a broad range of scientific research. Röntgen (1845-1923) was born in Lennep, Germany, but emigrated with his family to the Netherlands in 1848. As a 17-year-old he moved to Utrecht, entering the Technical School and living at the home of Dr. Jan Willem Gunning. In this well-educated family he was stimulated to continue his studies at university. In 1868 he received a diploma from the Federal Polytechnic School in Zurich and just a year later completed a PhD in physics. He followed his mentor, August Kundt, to the universities of Würzburg (1870) and Strasburg (1872) and married Anna Ludwig in 1872. In 1879 Röntgen gained his first professorship at a German University, in Giessen, followed by a chair in Würzburg in 1888. Here he discovered X-rays in 1895, for which he received the first Nobel Prize in physics in 1901. From 1900 until his retirement in 1921 he occupied the chair of physics at the Munich University.