At the same time, by researching a conception of ‘what is a time?’ scientifically, historically, mechanically, ethnographically, etc. Tsuyohi Tane has concluded a concept of time is ‘Time is Light and Light is Time’. A movement plates that were suspended more than 50,000 pieces with 3,000 metal wires. Each of them has carefully positioned in wire with a geometric composition that has 30 different types. And when it constructed on site it is achieved an immeasurable complexity.