OSAKA STATION CITY square of space-time

The Square of Space-Time features a massive, circular water clock that counts the seconds through falling droplets. This digital display forms numbers in the water itself as it cascades down a glass pane between the north and south gate buildings of the station. Engineers spent years calibrating the nozzles to ensure each pattern remains sharp. While commuters rush past to catch trains, the clock measures time using nothing but a synchronized rhythm of gravity and light.