How the big ideas of physics were really discovered: a guess, a test, a failure, a better model. Each title walks one concept through history, with a working simulation at every step and links to the original papers.
From Kanada's paramanu and Democritus's atomos to quarks and the Higgs boson. A clickable timeline of 31 models, discoveries and experiments, each with its own simulation: fire alpha particles at Thomson's atom, watch Rutherford's atom collapse, see why only some electron orbits fit.
Start the journey →From Aristotle's natural places and Aryabhata's turning Earth to Newton, Einstein and the first gravitational waves. Explore a 3D orbit map: six eras circle a Sun called "Gravitational field", and every planet is a discovery with its own simulation.
Start the journey →Is light a wave or a particle? The answer flipped for 2000 years. From rays out of the eye and Ibn al-Haytham to Newton, Young, Maxwell and single photons. Explore a 3D prism: white light splits into six era bands, and every glowing point is a discovery with its own simulation.
Start the journey →From amber and lodestones to Franklin's kite, Faraday's induction and Maxwell's great unification. Fly through a 3D magnetic field: six eras loop around a glowing bar magnet, and every node is a discovery with its own simulation. Where the story meets the atom and light, it links straight across.
Start the journey →