1. Astronomy
1.1. Astrophysics
1.1.1. Cosmology
1.1.2. Gravitation Physics
1.1.3. Planetary Astrophysics
1.1.4. Plasma Physics
1.1.5. Space Physics
1.1.6. Stellar Astrophysics
1.1.7. High Energy Astrophysics
1.1.8. Observational Astrophysics
1.1.8.1. Radio Astronomy
1.1.8.2. Infrared Astronomy
1.1.8.3. Optical Astronomy
1.1.8.4. Ultraviolet, X-ray, and Gamma Ray Astronomy
1.1.9. Theoretical Astrophysics
1.1.9.1. Solar System Formation and Evolution
1.1.9.2. Stellar Dynamics and Evolution
1.1.9.3. Galaxy Formation and Evolution
1.1.9.3.1. Lambda-CDM Model
1.1.9.3.2. Baryonic Matter
1.1.9.3.3. Energy
1.1.9.3.4. Radiation
1.1.9.3.5. Dark Energy
1.1.9.3.6. Quintessence
1.1.9.3.7. Phantom Energy
1.1.9.3.8. Dark Matter
1.1.9.3.9. Cold Dark Matter
1.1.9.3.10. Warm Dark Matter
1.1.9.3.11. Hot Dark Matter
1.1.9.3.12. Dark Radiation
1.1.9.3.13. Shape of the Universe
1.1.9.3.14. Large-Scale Structure
1.1.9.3.15. Reionization
1.1.9.3.16. Structure Formation
1.1.9.3.17. Large Quasar Group
1.1.9.3.18. Galaxy Filament
1.1.9.3.19. Supercluster
1.1.9.3.20. Galaxy Cluster
1.1.9.3.21. Galaxy Group
1.1.9.3.22. Local Group
1.1.9.3.23. Void
1.1.9.4. Magnetohydrodynamics
1.1.9.5. Large-Scale Structure of Matter in the Universe
1.1.9.6. Origin of Cosmic Rays
1.1.9.7. General Relativity and Physical Cosmology
1.1.9.8. String Cosmology
1.1.9.9. Astroparticle Physics
1.2. Astrodynamics
1.3. Astrometry
1.4. Extragalactic Astronomy
1.4.1. Galaxy Groups
1.4.2. Galaxy Clusters/Superclusters
1.4.3. Galaxy Filaments
1.4.4. Active Galactic Nuclei/Quasars
1.4.5. Radio Galaxies
1.4.6. Supernovae
1.4.7. Intergalactic Stars
1.4.8. Intergalactic Dust
1.4.9. Observable Universe
1.5. Galactic Astronomy
1.5.1. Milky Way
1.6. Cosmology
1.6.1. Big Bang
1.6.2. Cosmic Microwave Background
1.6.3. Dark Matter
1.6.4. Expansion of the Universe
1.6.5. Large-Scale Structure
1.6.6. Primordial Nucleosynthesis
1.7. Planetary Science
1.7.1. Mercury
1.7.2. Venus
1.7.3. Earth
1.7.4. Mars
1.7.5. Asteroids
1.7.6. Jupiter
1.7.7. Saturn
1.7.8. Uranus
1.7.9. Neptune
1.7.10. Pluto
1.7.11. Kuiper Belt Objects
1.7.12. Comets
1.7.13. Meteors
1.8. Stellar Astronomy
1.9. Fundamentals
1.9.1. Celestial Mechanics
1.9.2. Constellations
1.9.3. Eclipses
1.9.4. Energy and Temperature
1.9.5. Gravity
1.9.6. Kepler's Laws
1.9.7. Lunar Phases
1.9.8. Magnitude System
1.9.9. Night Sky
1.9.10. Properties of Light
1.9.11. Relativity
1.9.12. Spectra
1.10. Stars
1.10.1. Binary Stars
1.10.2. Black Holes
1.10.3. Brown Dwarfs
1.10.4. Gamma-Ray Bursts
1.10.5. Hertzsprung-Russell Diagram
1.10.6. Neutron Stars and White Dwarfs
1.10.7. Spectral Types
1.10.8. Star Clusters
1.10.9. Star Formation
1.10.10. Neutron Stars
1.10.10.1. Pulsar
1.10.10.2. Magnetar
1.10.11. Stellar Evolution
1.10.12. Stellar Nucleosynthesis
1.10.13. Supernovae
1.11. Instrumentation
1.11.1. Gamma-Ray Astronomy
1.11.2. Infrared Astronomy
1.11.3. Observatories
1.11.4. Radio Astronomy
1.11.5. Telescopes
1.11.6. Ultraviolet Astronomy
1.11.7. X-Ray Astronomy
2. Mid Infrared
3. Particle Physics
3.1. Accelerator Physics
3.2. Nuclear Physics
3.3. Nuclear Astrophysics
3.4. Particle Astrophysics
3.5. Particle Physics Phenomenology
3.6. Standard Model
3.7. Quantum Field Theory
3.8. Quantum Chromodynamics
3.9. Electroweak Theory
3.10. Effective Field Theory
3.11. Lattice Field Theory
3.12. Lattice Gauge Theory
3.13. Gauge Theory
3.14. Supersymmetry
3.15. Grand Unified Theory
3.16. Superstring Theory
3.17. M-Theory
4. Atomic, Molecular, and Optical Physics
4.1. Atomic Physics
4.2. Molecular Physics
4.3. Atomic and Molecular Astrophysics
4.4. Chemical Physics
4.4.1. Quantum Chemistry
4.5. Optics
4.5.1. Quantum Optics
4.6. Photonics
4.7. Quantum Information Science
4.8. Atom
4.9. Molecule
4.10. Diffraction
4.11. Electromagnetic Radiation
4.12. Laser
4.13. Polarization
4.14. Spectral Line
4.15. Casimir Effect
5. Condensed Matter Physics
5.1. Solid State Physics
5.2. High Pressure Physics
5.3. Low-Temperature Physics
5.4. Nanoscale and Mesoscopic Physics
5.5. Polymer Physics
5.6. BCS Theory
5.6.1. Superconductivity
5.7. Bloch Wave
5.7.1. Wavefunction
5.7.2. Planck's Constant
5.8. Fermi Gas
5.8.1. Fermions
5.8.2. Phases of Matter
5.8.3. Quantum Critical Point
5.8.4. Phase Transitions of Matter
5.9. Fermi Liquid
5.9.1. Fermions
5.9.2. Pauli Exclusion Principle
5.9.3. Adiabaticity
5.9.4. Angle Resolved Photoemission Spectroscopy
5.10. Many-Body Theory
5.10.1. Emergent Phenomena
6. Fundamental Forces
6.1. M-Theory
6.1.1. Quantum Field Theory
6.1.1.1. Electroweak Force
6.1.1.1.1. Weak Nuclear Force
6.1.1.1.2. Electromagnetism
6.1.1.2. Strong Nuclear Force
6.1.2. Gravity
6.1.3. Branes
6.1.4. BFSS Matrix Model
6.1.5. String Theory
6.1.5.1. Strings
6.2. Quantum Gravity
7. Dynamics
8. Geophysics
9. Mechanics
9.1. Thermodynamics
9.1.1. Heat Engine
9.1.2. Kinetic Theory
9.1.3. Statistical Mechanics
9.1.4. Boltzmann's Constant
9.1.5. Conjugate Variables
9.1.6. Enthalpy
9.1.7. Entropy
9.1.8. Equation of State
9.1.9. Equipartition Theorem
9.1.10. First Law of Thermodynamics
9.1.11. Spontaneous Process
9.1.12. State Function
9.1.13. Statistical Ensemble
9.1.14. Temperature
9.1.15. Thermodynamic Equilibrium
9.1.16. Thermodynamic Potential
9.1.17. Thermodynamic Processes
9.1.18. Thermodynamic State
9.1.19. Thermodynamic System
9.1.20. Third Law of Thermodynamics
9.1.21. Viscosity
9.1.22. Zeroth Law of Thermodynamics
9.2. Classical Mechanics
9.2.1. Lagrangian Mechanics
9.2.2. Hamiltonian Mechanics
9.2.3. Kinematics
9.2.4. Statics
9.2.5. Dynamics
9.2.6. Chaos Theory
9.2.7. Acoustics
9.2.8. Fluid Dynamics
9.2.9. Continuum Mechanics
9.2.10. Newton's Laws of Motion
9.2.11. Density
9.2.12. Dimension
9.2.13. Gravity
9.2.14. Space
9.2.15. Time
9.2.16. Motion
9.2.17. Length
9.2.18. Position
9.2.19. Velocity
9.2.20. Acceleration
9.2.21. Mass
9.2.22. Momentum
9.2.23. Force
9.2.24. Energy
9.2.25. Angular Momentum
9.2.26. Torque
9.2.27. Conservation Law
9.2.28. Harmonic Oscillator
9.2.29. Wave
9.2.29.1. Mechanical Waves
9.2.29.1.1. Waves on Strings
9.2.29.1.2. Acoustic Waves
9.2.29.1.3. Water Waves
9.2.29.1.4. Seismic Waves
9.2.29.1.5. Shock Waves
9.2.29.1.6. Kinematic Waves
9.2.29.1.7. Metachronal Wave
9.2.29.2. Electromagnetic Waves
9.2.29.2.1. Ionizing Radiation
9.2.29.2.2. Visible
9.2.29.2.3. Microwaves and Radio Waves
9.2.29.2.4. Ultra Low Frequency
9.2.29.2.5. Super Low Frequency
9.2.29.2.6. Extremely Low Frequency
9.2.29.3. Quantum Mechanical Waves
9.2.29.4. Gravity Waves
9.2.29.5. Gravitational Waves
9.2.30. Work
9.2.31. Power
9.3. Quantum Mechanics
9.3.1. Scattering Theory
9.3.2. Schrodinger Equation
9.3.3. Quantum Field Theory
9.3.4. Quantum Statistical Mechanics
9.3.5. Path Integral Formulation
9.4. Continuum Mechanics
9.5. Fluid Mechanics
9.5.1. Fluid Statics
9.5.2. Fluid Kinematics
9.5.3. Fluid Dynamics
9.6. Aerodynamics
9.7. Biomechanics
10. Theoretical Physics
10.1. Classical Mechanics
10.2. Continuum Mechanics
10.3. Solid Mechanics
10.4. Mathematical Physics
10.5. Statistical Physics
10.6. Statistical Mechanics
10.7. Condensed Matter Physics
10.7.1. Solid State Physics
10.7.2. Electronic Structure of Materials
10.8. Atomic Physics
10.9. Computational Physics
10.10. Nuclear Physics
10.11. Fundamental Interaction
10.12. Weak Interaction
10.13. Electroweak Interaction
10.14. Analog Models of Gravity
10.15. Conservation Law
10.16. Conservation of Energy
10.17. Conservation of Mass
10.18. Conservation of Momentum
10.19. Conservation of Angular Momentum
10.20. Thermodynamics
10.21. Laws of Thermodynamics
10.22. Newton's Laws of Motion
10.23. Dynamics
10.24. Dynamo Theory
10.25. Kinetic Theory of Gases
10.26. Electromagnetism
10.27. Field Theory
10.28. Classical Field Theory
10.29. Scattering Theory
10.30. Quantum Field Theory
10.31. Quantum Field Theory in Curved Spacetime
10.32. Conformal Field Theory
10.33. Fluid Mechanics
10.34. Fluid Dynamics
10.35. Information Theory
10.36. Algorithmic Information Theory
10.37. Quantum Information Theory
10.38. Theoretical Computer Science
10.39. Computational Complexity Theory
10.40. Quantum Complexity Theory
10.41. Theory of Relativity
10.41.1. General Relativity
10.41.1.1. Einstein Field Equations
10.41.1.2. Covariance
10.41.1.3. Einstein Manifold
10.41.1.4. Equivalence Principle
10.41.1.5. Four-Momentum
10.41.1.6. Four-Vector
10.41.1.7. General Principle of Relativity
10.41.1.8. Geodesic Motion
10.41.1.9. Gravity
10.41.1.10. Gravitoelectromagnetism
10.41.1.11. Inertial Frame of Reference
10.41.1.12. Invariance
10.41.1.13. Length Contraction
10.41.1.14. Lorentzian Manifold
10.41.1.15. Lorentz Transformation
10.41.1.16. Metric
10.41.1.17. Minkowski Diagram
10.41.1.18. Minkowski Space
10.41.1.19. Principle of Relativity
10.41.1.20. Proper Length
10.41.1.21. Proper Time
10.41.1.22. Reference Frame
10.41.1.23. Rest Energy
10.41.1.24. Rest Mass
10.41.1.25. Relativity of Simultaneity
10.41.1.26. Spacetime
10.41.1.27. Special Principle of Relativity
10.41.1.28. Speed of Light
10.41.1.29. Stress-Energy Tensor
10.41.1.30. Time Dilation
10.41.1.31. Twin Paradox
10.41.1.32. World Line
10.41.2. Special Relativity
10.41.2.1. Time Dilation
10.41.2.2. Relativistic Mass
10.41.2.3. Mass-Energy Equivalence
10.41.2.4. Universal Speed Limit
10.41.2.4.1. Speed of Light
10.41.2.5. Relativity of Simultaneity
10.41.2.6. Length Contraction