# Volume III — Molecular Dynamics

Where Volume II found the *static* minima of the energy landscape, this volume sets
the atoms in motion. Newton's equations, integrated in time, turn a potential into a
trajectory: thermal vibration, melting, diffusion, and the statistical averages that
become thermodynamics. We build a velocity-Verlet integrator, control temperature
with a thermostat, and read structure off the radial distribution function.

```{admonition} Source lectures
:class: note
This volume develops **Lecture 9** of *Molecular and Materials Modelling*
(FS 2023) — *molecular dynamics of Lennard-Jones clusters: ensembles, time
integration, and the radial distribution function* — and **Lecture 12**,
*replica exchange and the melting of a cluster*. Each notebook repeats its specific lecture provenance in its
overview; the full lecture map is in `manifest.yml`.
```

```{tableofcontents}
```