Special and General Relativity Forum

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Join in expert discussion on special and general relativity discussion. Relativity is the dependence of various physical phenomena on relative motion of the observer and the observed objects.
Undergrad Time Dilation Confusions - A Physics Newbie's Questions
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Graduate What is a Frame of Reference in Physics?
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Graduate Measuring One-Way Speed of Light: Experiments & Ideas
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Graduate Gravitational equations used in model of orbiting bodies
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Graduate Lowering Indices: Tensor Calculus Basics
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Graduate Mass Warping Spacetime Explained: Quantum Field Theory
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Graduate Time Dilation Effects on Observer Perception
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Graduate Black Hole Event Horizon: Is There a Physical Boundary?
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Graduate Tensor Contraction: Contracting ##\mu## with ##\alpha##?
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Graduate Einstein vs Newton: Does GR Disprove Gravitation?
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Graduate Black Hole Singularity: Infinite Mass & Merging Supermassive Black Holes
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High School Will This Method Yield Absolute Synch?
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Graduate Geodesic Deviation Equation Solved
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Graduate Mass Warping Spacetime: QFT & Gravitons Explained
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Graduate FRW Metric: Parameter k & Space/Space-Time Relationships
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Undergrad Solving the Mystery of e=mc^2: Understanding the Power of Squared in Physics
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Graduate Gravitation on an Expanded Earth
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Graduate Energy-momentum tensor radiation-dominated universe.
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Graduate Both frames of reference predict the other is slower -- proof
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Graduate Questions about Time/Speed/Light
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Graduate Uncurving the Universe: Expansion After Big Bang & Energy Loss
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Graduate Elliptical Orbits In The Schwarzschild Metric
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Graduate Problem Book in Relativity and Gravitation, online, free
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Graduate Solving Lorentz Matrix Product Problem - Help Needed
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Graduate Do gravitational time dilation effects cancel out or add up?
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Graduate Rotating Disk and Time Dilation
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Graduate What Time Is It? An Exploration of Time Dilations & Relativity
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Graduate Einstein Velocity Addition for Relative Speed Calculation
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Graduate Time Travel Possibility: Scottish Scientists Slow Light Speed?
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Graduate Relativistic Definition of Energy: E=Fd or E=md2/t2?
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Graduate Asymptotic velocity under constant force?
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Graduate Covarient Maxwell: Explaining 2nd Line From Attachment
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Graduate Calculating Time Distortion Caused by Massive Objects: Explained with Formula
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Graduate Is Mass Equivalence Explained by the Relationship Between Energy and Gravity?
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Graduate Energy Conservation Paradox: Is It True or Not?
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Graduate How to Determine Frame Size with Lorentz Transformation
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Graduate A problem regarding time dilation
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Graduate Solving Einstein's Field Equation: The Schwarschild Metric & Beyond
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Undergrad Acceleration & Special Relativity: Explained
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Graduate CMBr & Absolute Motion: A Query
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Graduate S DILEMMA: Time Dilation in Simple Harmonic Motion?
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Graduate The co-moving frame - acceleration, momentum and velocity
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Graduate Time dilation why or how, Special Relativity causes
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Graduate Would the one accelerating please stand up?
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Graduate Understanding Homogeneity & Isotropy in FRW Metric
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Graduate Massive Object Paradox: Traveling Near Speed of Light?
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Graduate Parallel Transport & Covariant Derivative: Overview
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Graduate Understand Electromagnetic Force in Different Inertial Frames
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Graduate General Relativity: Manifold/Sub-Manifold Metric Theorem Q-Schwarzschild
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Graduate Quick Questions on Free Indices - Four-Vector Notation
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Graduate Deriving Geodetic Line by Einstein: Clarifying Difficulties
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Graduate When can a metric be put in diagonal form?
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High School Does light revolve around mass like the moon orbits the Earth?
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Graduate Signature, boundary conditions and topology
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Undergrad Relative velocity time dilation question
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Graduate A plane shoots a bullet -- energy at different frame?
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Undergrad Does gravity affect a magnetic/electric field?
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Graduate Ds^2 Invariant Interval: Sign Dependence?
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Graduate Deriving FRW Metric: Ricci Vector Algebra Explained
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Graduate Solve Einstein Field Equation without Vacuum Solution
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Graduate Difference between images produced by gravitational lensing
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Graduate I'm having trouble understanding Lorentz transforms
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Graduate Contracting \mu & \alpha - What Does It Mean?
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Graduate Solving Tensor Index Manipulation Confusion
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Graduate Why never any length expansion under Lorentzian Relativity?
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Graduate Find lorentz transformation for arbitrary velocity (v) relat
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Graduate Can EM waves carry information faster than light?
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Graduate Link between SR and a magnetic field
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Undergrad Why Is Gravity Different from Electromagnetic Radiation?
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Undergrad Relativity: Noob Ques. - Why Do People on Earth Seem Stationary?
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Graduate Is space really just an illusion?
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Graduate Were there objections to Einstein's theory of relativity?
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Graduate What is the Difference Between Vectors and Dual Vectors in Spacetime?
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Graduate Electric dipole equivalence principle paradox?
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Graduate Is Absolute Space and Time Really Absolute?
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Graduate Time Dilation & Foreshortening: Understanding the Twin Paradox
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Graduate What Are the Limits of Classical Physics in Understanding Inertial Frames?
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Graduate Time Dilation Effects on a Probe
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Graduate Equivalence Principle Test Kits
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Undergrad What is the equation for the Schwarzschild Radius and why is π not included?
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Graduate Special Relativity: Solving for τ
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Graduate Positive Mass Theorem: Explained Simply for Gravity Shielding
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Graduate Eotvos effect - Apparent only?
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Graduate Why is Normal Area to Light Rays Invariant?
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Undergrad How many observers are needed to calculate the relativistic speed equation?
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Graduate Are all solutions to Einstein's Field Equations Lorentzian manifolds?
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Graduate How Do You Expand the Antisymmetrized Tensor \( T_{1234} \)?
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Graduate Is the Perspective of a Photon in Relativity Truly Timeless?
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Graduate Relativity Calculation: Two Events?
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Graduate Deflection of Light Around Massive Bodies
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Graduate Light Production in Gravity: Freq/Energy Impact?
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Graduate Relative Motion & Rotation of Axes of Reference
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Graduate Why can different observers agree on their relative velocity
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Graduate Gravitational Energy in GR: Energy Conservation Explained
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Graduate Curved-space Maxwell equations by differential forms?
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Graduate Deriving Max Symmetric Space from Spherically Symmetric - Sean M. Carroll
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Graduate Quick question on Geodesic Equation
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Graduate Moving object launched by observer into a Wormhole
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Graduate Intersteller: Lecture by Kip Thorne
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Graduate Gravity's reaction force in the relativist model?
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