If you go one stop past Chungjeongno subway station, you will arrive at City Hall station, where Line 1 and Line 2 intersect. Along the tracks between the stations, an artist attached printed materials measuring 200 by 120 centimeters, spaced 200 centimeters apart. White neon lights connected to sensors were installed on this printed material. As each train enters the station at a speed of 60 kilometers per hour, the sensors are activated. The signals coming from the sensors cause the white neon lights to flash. They illuminate these printed images for only a moment, then the lights turn off until the train reaches the next sensor. Each image comprises a single frame arranged in a linear sequence with the following frame, and since the sensors are installed at regular intervals corresponding to the sensors, the lights going on and off continuously as each train passes, effectively displaying the moving images of a film. The principles of this artwork are the same as those used in film. Passengers onboard the train can see the moving images through the windows. These moving images depict a fluid-like human figure suddenly approaching from outer space, floating weightlessly through the air, then slowly knocking on the window of the train, causing water drops to disperse.
