00:00The mazelandt-carrying barrier fights violent North Sea tidal surges right now.
00:05How do hollow steel gates weighing thousands of tons swing shut using only the rising water?
00:12Engineers realized traditional hydraulic engines were unnecessary to push the heavy barriers closed.
00:17Rising floodwaters automatically fill the hollow arms with ballast water,
00:22sinking them until they rest firmly on the canal bed.
00:25Instead of waiting for disaster, the mazelandt-carrying barrier automatically swings shut to block violent North Sea tidal surges.
