Classical mechanics is a model of the physics of forces acting upon bodies; includes sub-fields to describe the behaviors of solids, gases, and fluids. It is often referred to as … See more

The special theory of relativity enjoys a relationship with electromagnetism and mechanics; that is, the principle of relativity and the principle of stationary action in … See more

Optics is the study of light motions including reflection, refraction, diffraction, and interference.
Acoustics is the branch of physics involving the study of mechanical waves in different mediums. See more

Particle physics studies the nature of particles, while nuclear physics studies the atomic nuclei. See more

The first chapter of The Feynman Lectures on Physics is about the existence of atoms, which Feynman considered to be the most compact statement of physics, from which science could … See more

Quantum mechanics is the branch of physics treating atomic and subatomic systems and their interaction based on the observation that all forms of energy are released in discrete units or bundles called "quanta". Remarkably, quantum theory typically permits only See more

The study of the physical properties of matter in a condensed phase. See more