Geophysics focuses on the physical properties of Earth at all scales, from atomic to global. At Princeton, we study the physical properties of minerals in Earth's deep interior with high pressure experiments, we develop images of Earth's 3D structure using seismic tomography, we study the physics of earthquakes and the laws of friction, we model wave propagation using vast parallel computers, and we study subtle changes in Earth's gravity to model processes as diverse as plate tectonics and the growth and decay of ice sheets.

Seismology: A Documentary Film by James Trailie ’19