not unlike those who rely on gravity in the production of floors, the artists of "mono-ha" used gravity as an art material. in this 1968 piece by korean born Lee Ufan, gravity is as present as the concrete block and the plane of glass.
Nobuo Sekine - Removing the mould from 'Phase - Mother Earth'
Kishio Suga, 'Limitless Condition' (1971)
Nobuo Sekine. (関根伸夫, Sekine Nobuo), born in , is a Japanese sculptor currently living in both Tokyo, Japan, and Los Angeles, California. He is one of the key members of Mono-ha, a group of artists who became prominent in the late 1960s and 1970s. The Mono-ha artists explored the encounter between natural and industrial materials.
Noboru Takayama, 'Yuusatsu' (1973)
Phase of Nothingness–Cloth and Stone, 1970/1994, artist: Nobuo Sekine