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Physics Notes
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Preface
Math Prereqs
A Note on Dimensional Analysis
Vectors and Tensors
tensors2 – fromQuora
Classical Mechanics
Classical Mechanics
Module 1
Module 2
Module 3
V.Toth on Hamiltonian vs Lagrangian
ElectroMagnetism
Electro-Magnetism
Relativity
Relativity
Special Relativity
Derivations
From First Principles
From Electromagnetism
From Speed of Light
Contraction vs Dilation
Puzzles and Paradoxes
The Ladder Paradox
Twin Paradox
Acceleration
Ehrenfest Paradox
Graphical Simulation
Dynamics
General Relativity
Gravity
On the Approach to a Black Hole
Part I – Falling onto the event horizon
Lemma 1- red shift gradient for a point mass
Part 2 Evolution to Black Hole of a Large Gas Ball
Lemma 2 – Red Shift Gradient Inside a Gas Ball
Quantum Theories
History of QM
“Old Quantum Theory”: Planck, Einstein, and Bohr
Matrix Mechanics: Born, Jordan, Heisenberg
Derivation of Schroedinger’s Equation
All Together Now: Dirac and von Neumann
Relativistic Theory and Quantum Fields
Later Developments
General Structure
States and Observables
Observables
Why Symmetry is not enough
States
States – Pure, Mixed, & Entangled
EPR, Bell, and All That
Collected References on EPR, Bell, etc.
Measurement in Quantum Mechanics
Quantum Measurement Process
Quantum Measurement Process
Measurement
Schroedinger’s Cat is Wigner’s Friend
Path Integrals
Path Integrals
Interpretations
Interpretation Debates
Atmospheric Greenhouse Effect
Greenhouse Saturation
The Angstrom Argument
Human Energy Consumption
Society
Online Physics Resources
The Blog
Archives
Relative State via Partial Trace