Physics
Physics studies matter, energy, motion, interactions, and the fundamental laws that describe natural phenomena.
It combines observation, mathematical reasoning, and conceptual models to understand how physical systems behave, from the motion of bodies and thermodynamic transformations to nonlinear dynamics, chaos, and the phenomena that led to quantum physics.
This section organizes the material by physical topic rather than by educational level.
Mechanics
Mechanics studies motion and the laws governing the behavior of bodies under the action of forces.
It connects kinematics, dynamics, energy, momentum, and mathematical models of motion.
Thermodynamics
Thermodynamics studies heat, work, energy, entropy, equilibrium, and the macroscopic behavior of physical systems.
The resources in this section combine worked problems with conceptual explorations of entropy and the fundamental principles governing thermodynamic processes.
Dynamical Systems & Chaos
Dynamical systems study how physical and mathematical systems evolve over time, with particular attention to nonlinear behavior, stability, and sensitivity to initial conditions.
The Lorenz system provides one of the most influential examples of deterministic chaos: a simple system of differential equations capable of producing complex behavior and the celebrated Lorenz attractor.
Quantum Physics
Quantum physics emerged from phenomena that classical physics could not adequately explain.
The study of blackbody radiation provides one of the fundamental historical and conceptual paths toward Planck’s quantum hypothesis and the development of quantum theory.
Why Physics Matters
Physics is not merely a collection of formulas. It is a way of constructing models of reality.
Physical theories identify measurable quantities, establish relations between them, and use mathematics to derive consequences that can be tested against observation.
This interaction between experiment, mathematical structure, and conceptual reasoning makes physics one of the fundamental ways in which we investigate the natural world.