with nine scientific institutes in the fields of physics and chemistry. "Scientific Equipment Engineering" with its approx. 1,700 workers developed and produced a majority of East Germany's research equipment. A substantial portion of the research done at the Academy institutes was notable for its close connection with the industry, allowing the scientists to engage in worldwide networks. Adlershof produced many known products and inventions, such as ultra-short pulse lasers, time-resolved optical spectroscopy and space diagnosis devices. Other things like trifocals and contraceptive pills were also invented here. In 1989 over 5,600 people were working in Adlershof, more than half the R&D capacity of the whole Science Academy. Reunification After German reunification, the guard regiment was dissolved and the fate of the Academy was sealed by the German Unification Treaty: The research facilities of the Academy were subjected to an evaluation marathon by the German Council of Science and Humanities (Wissenschaftsrat), which established that there were about 1,500 Academy employees who ought to be placed in new research structures. For the rest of the former employees, it was recommended that they either find new jobs or start their own companies. So of the 250 newly founded companies, approx 100 were founded by ex-academy workers. Today almost 90 per cent of the companies co-operate with at least one partner, and 60 per cent with three or more partners at the site. Eight of the 12 research institutes now located in Adlershof and financed by Berlin and the Federal Republic of Germany are directly descended from the former GDR Academy of Sciences at the beginning of 1992 and integrated into the Federal German research landscape. They continued their activity under the responsibility of other bodies for example under the Max Planck Society, or affiliated to large research establishments like the "Joint Initiative of Non-University Research Institutions in Adlershof – IGAFA". Development In September 1991 the State of Berlin founded the "Adlershof Development Society" (EGA), from which WISTA-MANAGEMENT GMBH emerged in 1994. In 1992 the Senate of Berlin decided to establish an "integrated scientific and business landscape" on the Adlershof site and made building investments amounting to about 230 million euros. The goal was to bring together the synergies from science and industry, innovation to market. To encourage innovative businesses to settle here, modern specialised centres were established on the premises, some in reconstructed old buildings, and others in new buildings with spectacular architecture.