Figure 3 - With exhaust-only ventilation, the building is under negative pressure. The make-up air moving through the building envelope helps to keep building materials dry when this strategy is used in cold, dry climates.
The Wannsee Conference is one of the most notorious events of World War II. At the conference an estimate of the number of Jews in Europe was circulated: 11 million in total. The participant at the Wannsee Conference were all very important men within the Nazi regime, but none of them was high-ranking enough to possess the authority to decide the Final Solution to the Jewish question. 2  Systematic extermination of the Jews had begun long before the Wannsee Conference took place.
The Berlin Conference of 1884-1885, convened by Otto von Bismarck to discuss the future of Africa, had the stamping out slavery high on the agenda. The Berlin Act of 1885, signed by the 13 European powers attending the conference, included a resolution to 'help in suppressing slavery'. In truth, the strategic and economic objectives of the colonial powers, such as protecting old markets and exploiting new ones, were far more important.