Physics

Physics designates the natural science studying matter, energy, motion, and forces — from subatomic particles to cosmic structures. It is one of the major branches of the science tree and organises a large number of subfields whose shared methodology — mathematical modelling, experiment, and computation — recurs throughout this site.

Foundational references

The primary references for this topic establish the conceptual core and the standard problem set.

The Feynman Lectures on Physics (Feynman et al., 1963) is treated here as a primary reference for this area; its presentation of the subject is the canonical entry point for learners moving from prerequisites into independent work on physics.

Open methodological questions in physics include the precise scope of validity of the current dominant techniques, the integration of newer computational or experimental tools, and how this topic connects to neighbouring areas in the tree. Subsequent waves of editing will deepen these connections and add fresh frontier references as the literature evolves.