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Physics

Physics

Notes on physics — from classical mechanics to quantum field theory.

William Blake's portrait of Isaac Newton shows geometry as a physical way of thinking.

Figure: Blake's Newton gives the mechanics section a historical anchor for forces, geometry, and idealization. Image: Wikimedia Commons, William Blake, public domain.

The electromagnetic spectrum is arranged by wavelength, frequency, and representative sources.

Figure: The electromagnetic spectrum ties circuit-scale oscillations, radio links, optics, and thermal radiation into one continuum. Image: Wikimedia Commons, Inductiveload, public domain.

The Standard Model chart groups quarks, leptons, gauge bosons, and the Higgs boson.

Figure: The Standard Model chart gives QFT pages a concrete particle-spectrum map. Image: Wikimedia Commons, Cush and MissMJ, public domain/CC BY 3.0.

Topics

The quantum mechanics section cross-references Sakurai, Ballentine, Gottfried, and Schiff — comparing formalisms rather than picking one canonical treatment.