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 How Does Observer Motion Affect Calculated Work in Relativity?
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Undergrad The cause of spacetime and gravity
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Undergrad Gravitational time dilation, how much?
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Undergrad E=mc^2 how you picture it in nature?
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Undergrad Length contraction: Is it permanent?
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Undergrad How Does the Twin Paradox Illustrate Time Dilation in Special Relativity?
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Undergrad Frame of Reference: Definition & Explanation
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Undergrad E=MC^2 - easy explanation for kids
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Undergrad Can gravatational force only influence objects with energy?
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Undergrad Transformations in higher dimensions
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Undergrad Vertical Interferometer Experiments: Michelson-Morley, Miller, etc.
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Undergrad Question about photons traveling on same path
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Undergrad Wrong Block Theory of Time Description: Evaluate It
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Undergrad Questions about time dilation, special relativity, etc.
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Undergrad Inertial Frame of Reference vs Spacetime
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Undergrad The relationship between F=ma and E=mc2
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Undergrad Deriving Concepts of Tachyons: Speed, Energy & c
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Undergrad How does the time dilation equation work?
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Undergrad Twin Paradox: Pensioner's Perspective on Length Contraction
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Undergrad Understanding Space-Time: Exploring Einstein's Theory of General Relativity
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Undergrad Can Emergent Spacetime Concepts Enable Faster-Than-Light Travel?
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Undergrad Mass Energy Equivalence Equation
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Undergrad Is the relativity of simultaneity the reason for time dilation?
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Undergrad Black holes and the relativity of simultaneity
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Undergrad Is the speed of all waves constant?
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Undergrad Why don't we run out of gravitational force?
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Undergrad How the standard spacetime model relates to reality
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Undergrad Why does time link gravity and masslessness?
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Undergrad Relativity of simultaneity, understood, now not so sure.
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Undergrad Lorentz Transformations or Dilation/Contraction?
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Undergrad Hyper-Light Speed: What Happens?
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Undergrad Gravitational Field Strength of 1
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Undergrad Can someone falling into a black hole see the entire future of the universe?
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Undergrad What's the fate of neutrons in black hole formation?
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Undergrad Relativistic Doppler Effect: Explaining the Equation
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Undergrad Is X's Clock Really Slower Than Y's in the STR Argument?
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Undergrad Andrei Lebed: Hydrogen Spectral Transitions Without Gravity
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Undergrad Diffraction Redshift and Emission Theory
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Undergrad What is the structure of a photon and can it be observed?
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Undergrad Theory of Relativity & Gravity: Is Space Pushing Us to Earth?
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Undergrad Faster than the speed of light?
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Undergrad Twin Paradox: Relation between Age and Speed of light .
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Undergrad Does continuous acceleration eventually create a black hole
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Undergrad Is it time to "retire" time dilation and length contraction?
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Undergrad Basic Questions on Time Dilation Implications
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Undergrad Why Is the Proportionality Constant in E=mc² Just c²?
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Undergrad Invariance of Acceleration in Inertial Reference Frames
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Undergrad Twin's Paradox: Who is Older A or B?
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Undergrad What is the Effect of Gravity on Einstein's Train in Special Relativity?
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Undergrad Visual Effects of Special Relativity
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Undergrad Is Einstein's warped time the same as gravitational time dilation?
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Undergrad Gravitational Field: What Would Happen?
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Undergrad Black Holes: Internal Space & Matter Movement
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Undergrad Simultaneity agreeing in different frames
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Undergrad Understanding Light Clock Confusion on Moving Trains - A Discussion
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Undergrad Unifying Gravity: The Quest to Understand a Fictitious Force
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Undergrad Speed of Light: Length Contraction & 20AU Paths
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Undergrad How do we orbit the sun when you can set your origin anywhere....
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Undergrad Gravitational Time Dilation: A Layman's Explanation
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Undergrad What does Purcell actually say about electromagnetism and relativity?
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Undergrad SR Proves Eternalism: Is It Physically Substantial?
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Undergrad What is the Principle of Equivalence and how was it determined?
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Undergrad Relative Time in Space: What Speed for 1 Day Equals 1 Day on Earth?
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Undergrad Why is the Constant in Mass-Energy Equivalence C^2?
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Undergrad Why does a black hole get bigger when it consumes mass?
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Undergrad What is the 2D Concept of Spacetime and How Does It Work?
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Undergrad Struggling with the Special Relativity and simultaneity
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Undergrad Does time depend on speed; or on velocity?
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Undergrad A Question about the empirical evidence of time
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Undergrad Why is special relativity a local phenomenon?
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Undergrad How Einstein believed that space is curved?
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Undergrad Lorentz Transforms & Distribution Funcs: Physics Intro Help
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Undergrad Black Holes - Spaghetification countered by time dilation?
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Undergrad Why is E=MC^2 such a neat and simple formula?
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Undergrad Simultaneity: disagreement, in the same reference frame
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Undergrad Mass-Energy Relation: Burning Wood & Speed of Light
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Undergrad Question about Relativity: Speed Through Space & Time
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Undergrad Closed Timelike Curves Explained in Layman's Terms
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Undergrad Does Destroying an Atomic Clock Really Stop Time?
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Undergrad E=mc2: What is the Term for this Energy?
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Undergrad Time dilation on the surface of the sun
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Undergrad Time Dilation due to Gravity: Formula Explained
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Undergrad Why does gravity affect time in space?
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Undergrad Would Gravity Exist Without Inertia?
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Undergrad How do we know the speed of light is constant?
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Undergrad Why Does Momentum Matter for Space but Not Time?
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Undergrad Which is Moving Faster? Basic Question Explained
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Undergrad Calculating the Riemann Tensor for a 4D Sphere
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Undergrad Gravitational Effect: 2 Masses N, 2 Larger Masses Further Apart
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Undergrad Time Conundrum: Angel vs Man View
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Undergrad Why the speed of light is constant?
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Undergrad ?Understanding Special Relativity: Speed Addition & Subtraction
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Undergrad Question about gravity and speed of light
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Undergrad How Much Time Do We Actually Occupy in the Universe?
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Undergrad Modeling of measurements in relativity
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Undergrad Special relativity -- 2 parallel space ships & time perception....
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Undergrad Time Dilation & Doppler Effect: Conclusions?
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Undergrad Understanding Wormholes & Black Holes: An Exploration by Ed
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Undergrad Black Hole Effects: What Would Happen?
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Undergrad Particles with mass can't reach speed of light?
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