The title of this work references the limits of human perception—12 Hz is the lowest sound threshold of human hearing. It suggests imperceptible forces, from plate tectonics to the ocean tides, from cycles of growth and decay in the forest, to the incomprehensibility of geological spans of time. The photographs in 12 Hz allude to the ungraspable scale and veiled mechanics of these phenomena, while acknowledging a desire to gain a broader perspective, beyond the human enterprise, in a time of ecological and political crisis.