ABSTRACT
The author chose his new home in the Grunewald suburb, Teplitzer Strasse. At that time Berlin still consisted of half-independent boroughs with separate administrations, councils, mayors and budgets although there was also a central administration with an Ober-Burgermeister. There was a technical institution in the Prussian army called Artillerie-Prufungs-Kommission or Artillery Testing Commission (APK), which investigated all inventions concerning artillery. At the beginning of the war it had almost completely disintegrated, when the technical officers were sent to the front so sure was the General Staff of having the best possible technical equipment. One of the first people the author visited was Albert Einstein. The author knews him superficially from scientific conferences. Einstein was not a professor at the University but had a special position at the Berlin Academy. In June 1915, author learned that under the auspices of Professor Max Wien a unit of physicists and technicians was being formed to work on the development of wireless in aeroplanes.
