The Global Science Education Hub
Master physics, biology, and earth sciences with world-class education. 400+ video lectures from Nobel laureates, MIT, Stanford, and leading universities worldwide.
Built for students, researchers, and lifelong learners seeking rigorous, university-level science education
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Searching For Order in the Complexity of Evolving Worlds
As Santa Fe researchers say, our researchers endeavor to understand and unify the underlying, shared patterns in complex physical, biological, social, cultural, technological, and even possible astrobiological worlds.
As we reveal the unseen mechanisms and processes that shape these evolving worlds, we seek to use this understanding to promote the well-being of humankind and of life on earth.
Why This Site Exists
We've built this platform to gather knowledge across all domains of physics β from quantum mechanics to cosmology. By making graduate-level education freely accessible, we empower curious minds worldwide to explore the fundamental principles that govern our universe.
Is Physics in a Deep Crisis?
A thought-provoking discussion with Leonard Susskind, founding father of string theory
Leonard Susskind is a professor at Stanford University and a pioneer of string theory.
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, thermodynamic potentials, and kinetic theory. MIT lectures included.
Statistical Mechanics
Microcanonical, canonical, grand canonical ensembles, partition functions, phase transitions. Kardar and Susskind lectures.
Fluid Mechanics
Navier-Stokes equations, potential flow, boundary layers, turbulence, and magnetohydrodynamics (MHD) foundations.
Earth & Atmospheric Sciences
Atmospheric Science
Thermodynamics, dynamics, synoptic meteorology, clouds, radiation, climate science, and planetary atmospheres.
Oceanography
Physical, chemical, biological, and geological oceanography. Ocean circulation, waves, tides, and marine ecosystems.
Climatology & Meteorology
Atmospheric dynamics, climate systems, weather patterns, and global climate change science.
Quantum & Atomic Physics
Waves & Optics
EM waves, interference, diffraction, polarization, wave equations, and classical wave phenomena. MIT lectures by Walter Lewin.
Atomic & Optical Physics
Quantum optics, laser cooling, BEC, atom trapping, coherent states. MIT lectures by Wolfgang Ketterle (Nobel laureate).
Quantum Mechanics
Complete course: Hilbert spaces, SchrΓΆdinger equation, angular momentum, approximation methods, identical particles, scattering.
Quantum Field Theory
Canonical quantization, path integrals, Feynman diagrams, gauge theories, renormalization, QED, Standard Model.
Relativity & Cosmology
General Relativity
Einstein field equations, Schwarzschild solution, geodesic motion, gravitational waves, and curved spacetime geometry.
Cosmology Models
FLRW metric, Friedmann equations, inflation theory, dark energy, dark matter, and the evolution of the universe.
Black Holes
Schwarzschild, Reissner-NordstrΓΆm, Kerr metrics, Hawking radiation, thermodynamics, and information paradox.
Quantum Gravity
Loop quantum gravity, string theory, Wheeler-DeWitt equation, quantum cosmology, and the quest to unify QM and GR.
Inflation Theory
Exponential expansion, slow-roll dynamics, primordial perturbations, CMB predictions, and the origin of cosmic structure.
Gravitational Waves
LIGO/Virgo detections, binary mergers, quadrupole formula, waveforms, multi-messenger astronomy.
Observational Evidence
Observations
CMB, Type Ia supernovae, BAO, gravitational lensing, redshift surveys β the measurements that define modern cosmology.
Dark Matter
Galaxy rotation curves, WIMPs, direct detection experiments, gravitational lensing evidence, modified gravity theories.
Dark Energy
Cosmological constant, accelerated expansion, equation of state, quintessence models, and the universe's ultimate fate.
Life Sciences
Molecular Biology
DNA, RNA, protein synthesis, gene expression, enzyme kinetics, ion channels, and quantum biology foundations.
Cell Physiology
Membrane transport, cell signaling, muscle contraction, neurophysiology, and calcium signaling with circuit models.
Pharmacology
Drug mechanisms, pharmacokinetics, pharmacodynamics, receptors, CNS drugs, cardiovascular, and chemotherapy.
Quantum Biology
Quantum tunneling in enzymes, photosynthesis, magnetoreception, and quantum coherence in biological systems.
Interactive Tools
Cosmology Calculator
Calculate distances, lookback times, and scale factors for any redshift using Planck 2018 cosmological parameters.
Black Hole Calculator
Calculate horizons, Hawking temperature, entropy, ISCO radius, and evaporation time for any mass, spin, and charge.
Einstein Field Equations
The foundation of General Relativity, relating spacetime curvature to energy and momentum: