Modern Physics Without the Fog
by 0xmert · Modern physics for the intellectually curious: special and general relativity, quantum mechanics, particle physics, and cosmology with light but honest math
A 15-hour conceptual course on relativity, quantum mechanics, particle physics, and cosmology for educated non-specialists who want clear models instead of vague physics slogans.
Free account, then it's yours: your own private copy with a clean slate and its own review schedule.
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modules
12
lessons
15h
estimated work · target 15h
What's inside
48 tasks · 72 flashcards · 62 concepts · 36 recall prompts
Sample recall prompts — this is what studying it feels like
- Define an event and an inertial frame, then give one concrete example of each.
- Explain why invariant light speed forces a change in ordinary ideas about space and time.
- What does relativity mean by an invariant, and why is that not the same as saying everything is relative?
Syllabus
Special Relativity and Spacetime Discipline
Frames, invariant light speed, time dilation, length contraction, causal structure, and mass-energy equivalence.
- Events, Frames, and Invariant Light Speed reading · flashcard · quiz · teach_back · 6 cards
- Time Dilation, Length Contraction, and Causality reading · flashcard · quiz · teach_back · 6 cards
- Mass-Energy and the Special Relativity Synthesis reading · flashcard · quiz · teach_back · 6 cards
General Relativity: Gravity as Geometry
The equivalence principle, curved spacetime, gravitational time dilation, lensing, black holes, waves, and tests.
- The Equivalence Principle and Curved Spacetime reading · flashcard · quiz · teach_back · 6 cards
- Gravitational Clocks, Lensing, and Black Holes flashcard · reading · quiz · teach_back · 6 cards
- Gravitational Waves and Evidence for General Relativity reading · flashcard · quiz · essay · 6 cards
Quantum Mechanics Without Mysticism
Quantum states, wave functions, amplitudes, superposition, uncertainty, measurement, decoherence, entanglement, Bell tests, and interpretations.
- Wave Functions, Amplitudes, and the Born Rule reading · flashcard · quiz · teach_back · 6 cards
- Superposition, Uncertainty, and Measurement reading · flashcard · quiz · teach_back · 6 cards
- Entanglement, Bell Tests, and Interpretations reading · flashcard · quiz · essay · 6 cards
Fields, Particles, and the Universe
The Standard Model, Higgs mechanism, Big Bang evidence, inflation, dark matter, dark energy, Lambda-CDM, and open frontiers.
- The Standard Model: Fields, Forces, and the Higgs reading · flashcard · quiz · teach_back · 6 cards
- The Big Bang Model, Inflation, and Cosmic Evidence reading · flashcard · quiz · teach_back · 6 cards
- Dark Matter, Dark Energy, and the Frontiers reading · flashcard · quiz · project · 6 cards