The Factonaut on Instagram: "Austria’s Kölnbrein Dam is the tallest dam in the country, with a height of 200 meters. It is part of a hydroelectric system and holds more than 200 million tons of water in its reservoir. The dam is a curved gravity-type structure, which uses its shape and mass to withstand water pressure. At the base, an emergency relief valve can discharge up to 20,000 liters of water per second at a speed of about 50 meters per second. This flow is driven only by the pressure cre