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Master Science
From First Principles
University-level courses in physics, biology, and earth sciences. Lectures from MIT, Stanford, and Nobel laureates -- completely free.
Graduate-Level Rigor
Real university content with full mathematical derivations, not watered-down summaries.
Interactive Code & Tools
Run Python simulations, use physics calculators, and visualize concepts in real time.
Learn From the Best
Video lectures from MIT, Stanford, Nobel laureates, and leading researchers worldwide.
Popular Learning Paths
Not sure where to start? Follow a structured path from fundamentals to advanced topics.
Recently Enhanced
Plasma Physics
Kinetic theory, Landau damping, MHD, waves, and fusion confinement. 8 parts, 50+ chapters.
Biochemistry
Amino acids, enzyme kinetics, nucleic acids, metabolism. 19 chapters + 3 interactive tools.
Cosmology
Friedmann equations, inflation, CMB physics, structure formation, dark matter & dark energy. 7 chapters with interactive Python simulations.
Foundation Courses
Mathematics
Linear algebra, tensor calculus, differential geometry, and variational calculus.
Classical Mechanics
Lagrangian and Hamiltonian formalism, canonical transformations, and action principles.
Special Relativity
Einstein's theory of spacetime, Lorentz transformations, and relativistic mechanics.
Statistical & Thermal Physics
Thermodynamics
Laws of thermodynamics, entropy, phase transitions, and thermodynamic potentials. MIT lectures included.
Statistical Mechanics
Ensembles, partition functions, phase transitions. Kardar and Susskind lectures.
Fluid Mechanics
Navier-Stokes equations, boundary layers, turbulence, and MHD foundations.
Earth & Atmospheric Sciences
Atmospheric Science
Thermodynamics, dynamics, synoptic meteorology, clouds, radiation, and climate science.
Oceanography
Physical, chemical, biological, and geological oceanography. Ocean circulation and marine ecosystems.
Climatology & Meteorology
Atmospheric dynamics, climate systems, weather patterns, and global climate change.
Quantum & Atomic Physics
Waves & Optics
EM waves, interference, diffraction, polarization. MIT lectures by Walter Lewin.
Atomic & Optical Physics
Quantum optics, laser cooling, BEC. MIT lectures by Wolfgang Ketterle (Nobel laureate).
Quantum Mechanics
Hilbert spaces, Schrödinger equation, angular momentum, approximation methods, scattering.
Quantum Field Theory
Path integrals, Feynman diagrams, gauge theories, renormalization, QED, Standard Model.
Particle Physics
Standard Model, quarks, leptons, Higgs mechanism, collider experiments, and beyond.
Relativity & Cosmology
General Relativity
Einstein field equations, Schwarzschild solution, geodesic motion, and gravitational waves.
Cosmology
FLRW metric, Friedmann equations, inflation, dark energy, and the evolution of the universe.
Black Holes
Schwarzschild, Kerr metrics, Hawking radiation, thermodynamics, and information paradox.
Quantum Gravity
Loop quantum gravity, string theory, Wheeler-DeWitt equation, and quantum cosmology.
Inflation Theory
Slow-roll dynamics, primordial perturbations, CMB predictions, and cosmic structure.
Gravitational Waves
LIGO/Virgo detections, binary mergers, waveforms, multi-messenger astronomy.
Observational Evidence
Observations
CMB, Type Ia supernovae, BAO, gravitational lensing, redshift surveys.
Dark Matter
Galaxy rotation curves, WIMPs, direct detection experiments, modified gravity theories.
Dark Energy
Cosmological constant, accelerated expansion, quintessence, and the universe's fate.
Life Sciences
Biochemistry
Amino acids, enzymes, nucleic acids, carbohydrates, lipids, and metabolism with interactive tools.
Molecular Biology
DNA, RNA, protein synthesis, gene expression, ion channels, and quantum biology.
Cell Physiology
Membrane transport, cell signaling, muscle contraction, neurophysiology, and calcium signaling.
Pharmacology
Drug mechanisms, pharmacokinetics, pharmacodynamics, CNS drugs, and chemotherapy.
Omics Sciences
Genomics, proteomics, transcriptomics, metabolomics, and multi-omics integration.
Quantum Biology
Quantum tunneling in enzymes, photosynthesis, magnetoreception, and biological coherence.
Interactive Tools
Einstein Field Equations
The foundation of General Relativity, relating spacetime curvature to energy and momentum:
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