### What's Up

### Most Read Articles

# HTML Sitemap

- Special Relativity
- Geodesics as proper time maximization
- Introduction to Four-momentum vector and E = mc2
- Introduction to Four-velocity vector
- Twin paradox part II
- Twin paradox part I
- The Minkowski metric
- Length contraction use case - Destination Andromeda!
- Time dilation use case - The muon's lifetime
- The Lorentz transformations Part V - 2nd observer in Minkowski spacetime diagram
- The Lorentz transformations Part IV - Lorentz transformation matrix
- The Lorentz transformations Part III - Measuring-Rods and Clocks in motion
- The Lorentz transformations Part II - Derivation
- The Lorentz transformations Part I - Presentation
- Minkowski's Four-Dimensional Space-Time
- Constant Speed of light - Introduction to Time Dilation and Lorentz factor
- Constant Speed of light - Introduction to End of Simultaneity
- Context of Special Relativity
- Introduction to Special Relativity

- General Relativity
- Gravitational deflection of light
- Geodesics in Schwarzschild spacetime
- Schwarzschild metric derivation
- Introduction to Schwarzschild metric
- Variation of the metric determinant
- Einstein-Hilbert action
- Geodesic equation from the principle of least action
- Hafele–Keating experiment (1971)
- Einstein Field Equations
- Einstein Tensor
- Local Flatness or Local Inertial Frames and SpaceTime curvature
- Introduction to Tensors
- Introduction to Covariant Differentiation
- Riemann curvature tensor part III: Symmetries and independant components
- Bianchi identity and Ricci tensor
- Riemann curvature tensor and Ricci tensor for the 2-d surface of a sphere
- Energy-momentum tensor
- Gravitational redshift Part III - Experiments
- Gravitational redshift Part II - Derivation from the Equivalence Principle
- Gravitational redshift or Einstein effect - Part I
- Geodesic equation in the Newtonian Limit
- Geodesic exercise part II: calculation for the surface of the Earth
- Geodesic exercise part I: calculation for 2-dimensional Euclidean space
- Metric tensor exercise: calculation for the surface of a sphere
- Christoffel symbol exercise: calculation in polar coordinates part II
- Christoffel symbols in terms of the metric tensor
- Christoffel symbol exercise: calculation in polar coordinates part I
- Generalisation of the metric tensor in pseudo-Riemannian manifold
- The Equivalence Principle
- Geodesic equation and Christoffel symbols
- Introduction to General Relativity
- Context of General Relativity
- Riemann curvature tensor part I: derivation from covariant derivative commutator
- Covariant differentiation exercise 2: calculation for the Euclidean metric tensor
- Covariant differentiation exercise 1: calculation in cylindrical coordinates
- Riemann curvature tensor part II: derivation from the geodesic deviation

- Dictionary
- Qubit
- The No-cloning theorem
- Tensor Product Matrices
- Palatini equation
- Newtonian limit
- Einstein's field equation
- Geodesic
- Spacetime curvature
- Principle of General Covariance
- Metric tensor
- Lorentzian and Pseudo-Riemannian manifolds
- Minkowski Space-Time
- Special Relativity
- Local Inertial Frame (LIF)
- Inertial Frame of Reference
- Events
- Proper Time
- Christoffel Symbol or Connection coefficient
- Equivalence Principle

- Resources

- About me

- Latest News

- Uncategorized

- Latest Readings

- Website Updates
- Fundraising on Tipeee
- Einsteinrelativelyeasy popularity feb 2020
- New Quantum Mechanics Category
- French translation in progress!
- Einsteinrelativelyeasy popularity
- Comment on Introduction to tensor article
- Einsteinrelativelyeasy popularity
- Einsteinrelativelyeasy on facebook!
- RSS Feed added
- General relativity series has started
- Minkowski spacetime and time dilation calculation
- Reach us via fb messenger chat!

- Einstein
- The early reception of Special Relativity
- Nov 1915 The four Einstein's papers
- 1913 The Entwurf or the missed occasion
- 1907 "The happiest thought of my life"
- Einstein moves to US, October 17, 1933
- 1907 Equivalence Principle first published mention
- 1905 Einstein's paper outlines mass-energy equivalence
- 1912 E=mc2 first published expression

- Quantum Mechanics
- The Deutsch-Jozsa algorithm
- Quantum teleportation with Google Cirq
- Quantum teleportation implemented in Java
- Hadamard gate decomposition
- The quantum teleportation algorithm
- To entanglement with Google Cirq API
- Java quantum program to entanglement
- C-NOT gate, Bell State and Entanglement
- Parallel superposition and Hadamard gates
- Introduction to quantum logic gates
- Correlation in entangled state
- Introduction to quantum computing
- Introduction to quantum entanglement
- Expectation value of a product state
- Expectation value of an entangled state
- EPR Paradox