The sculpture captures the ephemeral traces of particles as visualized within a Wilson cloud chamber — a device that makes the invisible passage of ionizing radiation perceptible. These shapes are derived from still frames captured within a one-second recording in the cloud chamber. The title, 9192631770, refers to the definition of one second as the duration of 9,192,631,770 periods of radiation corresponding to the transition between two hyperfine levels of the ground state of the caesium -133 atom.