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Special and General Relativity Forum

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.

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Embarassingly simple question - Christoffel symbols

Nov 18, 2004 · Replies 6 · Nov 19, 2004

Replies: 6

Views: 3K

Relativity and Clocks on Airplanes Calibrated from the Ground

Nov 5, 2004 · Replies 8 · Nov 18, 2004

Replies: 8

Views: 3K

Einstein energy and thermodynamic energy

Oct 18, 2004 · Replies 16 · Nov 16, 2004

Replies: 16

Views: 4K

The Minkowski so-called 'metric'

Nov 12, 2004 · Replies 5 · Nov 16, 2004

Replies: 5

Views: 3K

Outer product of two one forms.

Nov 13, 2004 · Replies 3 · Nov 16, 2004

Replies: 3

Views: 5K

What causes a single photon to propagate in an infinite spacetime?

Nov 13, 2004 · Replies 2 · Nov 15, 2004

Replies: 2

Views: 2K

Mahematics for general relativiy?

Nov 8, 2004 · Replies 2 · Nov 15, 2004

Replies: 2

Views: 2K

Can Inertia and Acceleration in Space Be Explained by General Relativity?

Nov 13, 2004 · Replies 2 · Nov 15, 2004

Replies: 2

Views: 2K

Proving the Existence of Event Horizon in Homogeneous Spacetimes

Nov 9, 2004 · Replies 2 · Nov 10, 2004

Replies: 2

Views: 3K

Yet another spaceship moving at .9c thread

Oct 24, 2004 · Replies 11 · Nov 10, 2004

Replies: 11

Views: 5K

Design features in a spacecraft

Nov 8, 2004 · Replies 7 · Nov 10, 2004

Replies: 7

Views: 2K

.Solving the Time Travel Paradox: An Explanation

Nov 3, 2004 · Replies 9 · Nov 9, 2004

Replies: 9

Views: 2K

Static Spacetimes: Killing Vectors Explained

Nov 8, 2004 · Replies 12 · Nov 9, 2004

Replies: 12

Views: 4K

What Is an Electric Field 4-Vector?

Oct 28, 2004 · Replies 3 · Nov 8, 2004

Replies: 3

Views: 4K

Did Einstein Think Reality Requires an Observer?

Oct 27, 2004 · Replies 3 · Nov 8, 2004

Replies: 3

Views: 3K

Relativity Qs: Can Anyone Help?

Nov 5, 2004 · Replies 20 · Nov 8, 2004

Replies: 20

Views: 4K

Does length contraction apply to all objects, big and small?

Nov 5, 2004 · Replies 3 · Nov 6, 2004

Replies: 3

Views: 3K

'Speed of Light' Thought Experiment

Oct 26, 2004 · Replies 32 · Nov 5, 2004

2

Replies: 32

Views: 8K

Contraction effects at relativistic velocities

Sep 22, 2004 · Replies 63 · Nov 4, 2004

3

Replies: 63

Views: 10K

Spacetime Curvature: What Does it Mean?

Nov 3, 2004 · Replies 2 · Nov 4, 2004

Replies: 2

Views: 2K

What is Einstein Temperature and how can i use it in this question?

Oct 26, 2004 · Replies 2 · Nov 2, 2004

Replies: 2

Views: 9K

Space-time and the speed of light

Oct 31, 2004 · Replies 11 · Nov 2, 2004

Replies: 11

Views: 5K

Understanding Lorentz Transformations: A Derivation for A-Level Students

Oct 31, 2004 · Replies 3 · Nov 1, 2004

Replies: 3

Views: 3K

Experiments performed that upholds the predictions of SR?

Oct 29, 2004 · Replies 2 · Oct 31, 2004

Replies: 2

Views: 2K

Calculate Relative Speeds of Moving Objects for Twin Paradox

Oct 31, 2004 · Replies 3 · Oct 31, 2004

Replies: 3

Views: 2K

Important find:when is the light wave-motion ?and when is particle-motion?

Oct 30, 2004 · Replies 5 · Oct 30, 2004

Replies: 5

Views: 5K

Why Is the Fourth Component Necessary in Relativistic Momentum?

Oct 21, 2004 · Replies 25 · Oct 30, 2004

Replies: 25

Views: 7K

Frame Dragging Detected per GR

Oct 20, 2004 · Replies 2 · Oct 29, 2004

Replies: 2

Views: 2K

Relativistic Velocity: Speed Limits & Ranges Explained

Oct 26, 2004 · Replies 5 · Oct 28, 2004

Replies: 5

Views: 12K

Why is there 0 gravity in space

Sep 21, 2004 · Replies 24 · Oct 28, 2004

Replies: 24

Views: 7K

Einstein's GR vs. Aether Theory: Examining the Debate

Sep 14, 2004 · Replies 16 · Oct 28, 2004

Replies: 16

Views: 4K

Time Dilation Question: A vs. B Clocks in Motion Experiment

Aug 2, 2004 · Replies 51 · Oct 27, 2004

2

Replies: 51

Views: 9K

How Is Total Mass Calculated in General Relativity for a Finite Body?

Oct 7, 2004 · Replies 41 · Oct 26, 2004

2

Replies: 41

Views: 7K

Does an electric charge curve spacetime ?

Sep 21, 2004 · Replies 119 · Oct 25, 2004

4

Replies: 119

Views: 21K

Light, Mass, and Black hole question

Oct 16, 2004 · Replies 11 · Oct 25, 2004

Replies: 11

Views: 5K

Information Twin , loss Paradox?

Oct 24, 2004 · Replies 2 · Oct 25, 2004

Replies: 2

Views: 2K

What is the Origin of Frame Dragging and Gravity Waves in GR?

Oct 22, 2004 · Replies 4 · Oct 24, 2004

Replies: 4

Views: 2K

Time Dilation and Length Contraction

Oct 21, 2004 · Replies 8 · Oct 22, 2004

Replies: 8

Views: 4K

Could someone me get my mind around this paradox

Oct 19, 2004 · Replies 3 · Oct 21, 2004

Replies: 3

Views: 3K

Gravity and massless particles?

Oct 16, 2004 · Replies 5 · Oct 21, 2004

Replies: 5

Views: 3K

Can electromagnetic fields produce space-time curvature?

Oct 15, 2004 · Replies 6 · Oct 21, 2004

Replies: 6

Views: 5K

How Do GPS Satellites Adjust for Both Special and General Relativity Effects?

Oct 18, 2004 · Replies 4 · Oct 20, 2004

Replies: 4

Views: 4K

Understanding Relative Motion in Physics: Debunking the Misconceptions

Oct 13, 2004 · Replies 2 · Oct 20, 2004

Replies: 2

Views: 2K

Why isn't freefall based on the mass of the object falling?

Oct 12, 2004 · Replies 23 · Oct 19, 2004

Replies: 23

Views: 15K

Do All Observers Agree on the Timing of Events in Relativity Experiments?

Oct 16, 2004 · Replies 25 · Oct 19, 2004

Replies: 25

Views: 6K

Dark Matter: A Result of Relativity?

Aug 12, 2004 · Replies 26 · Oct 18, 2004

Replies: 26

Views: 6K

Is the Schwarzchild Metric Accurate in Predicting Black Holes?

Oct 18, 2004 · Replies 4 · Oct 18, 2004

Replies: 4

Views: 3K

Is Time Travel Possible with Differential Spatial Motion?

Oct 12, 2004 · Replies 17 · Oct 17, 2004

Replies: 17

Views: 3K

Foundation to the theory of relativity

Oct 15, 2004 · Replies 9 · Oct 16, 2004

Replies: 9

Views: 3K

Are Time Dilation and Length Contraction Proven by Experiments?

Oct 16, 2004 · Replies 3 · Oct 16, 2004

Replies: 3

Views: 5K

What Happens to the Twins in the Twin Paradox with Acceleration?

Oct 16, 2004 · Replies 2 · Oct 16, 2004

Replies: 2

Views: 2K

Distance Between Two Bodies: Am I Correct?

Oct 13, 2004 · Replies 9 · Oct 15, 2004

Replies: 9

Views: 5K

Relativity: The Special and General Theory, signed

Oct 14, 2004 · Replies 4 · Oct 14, 2004

Replies: 4

Views: 2K

Is Energy Conserved in General Relativity?

Jun 9, 2004 · Replies 120 · Oct 14, 2004

5

Replies: 120

Views: 16K

Time Dilation and Synchronization in Special Relativity

Oct 2, 2004 · Replies 26 · Oct 14, 2004

Replies: 26

Views: 5K

Theory of relativity sets limits

Oct 7, 2004 · Replies 2 · Oct 14, 2004

Replies: 2

Views: 5K

What Is the Physical Interpretation of a Non-Metric Compatible Connection in GR?

Oct 13, 2004 · Replies 3 · Oct 14, 2004

Replies: 3

Views: 5K

The Equivalence Principle-bending of light

Oct 13, 2004 · Replies 6 · Oct 14, 2004

Replies: 6

Views: 6K

What is the relationship between energy, matter, and space-time?

Oct 7, 2004 · Replies 22 · Oct 13, 2004

Replies: 22

Views: 5K

A question about mickelson& morli experiment

Oct 6, 2004 · Replies 2 · Oct 13, 2004

Replies: 2

Views: 2K

Can someone explain the twin paradox to me

Oct 12, 2004 · Replies 2 · Oct 13, 2004

Replies: 2

Views: 4K

Relativity vs Newtonian Physics

Oct 11, 2004 · Replies 6 · Oct 12, 2004

Replies: 6

Views: 9K

General Question about Einstein's Theories.

Oct 7, 2004 · Replies 3 · Oct 11, 2004

Replies: 3

Views: 3K

Time Dilation & Frame of Reference: Who's Time Slows Down?

Oct 6, 2004 · Replies 77 · Oct 11, 2004

3

Replies: 77

Views: 10K

Special relativity and frames of reference

Oct 8, 2004 · Replies 5 · Oct 10, 2004

Replies: 5

Views: 4K

Does Time Dilation Apply to Objects Moving at Sub-Light Speeds?

Oct 6, 2004 · Replies 5 · Oct 10, 2004

Replies: 5

Views: 3K

Einstein's 1912 Paper: Debunking Myths and Misconceptions

Sep 26, 2004 · Replies 17 · Oct 10, 2004

Replies: 17

Views: 4K

Can photons change direction or slow down near a black hole?

Oct 4, 2004 · Replies 14 · Oct 7, 2004

Replies: 14

Views: 3K

Is the universe expanding faster than the speed of light?

Sep 27, 2004 · Replies 10 · Oct 7, 2004

Replies: 10

Views: 4K

Einstein's theory of Special Relativity

Oct 1, 2004 · Replies 8 · Oct 2, 2004

Replies: 8

Views: 4K

Is There a Preferred Frame? Understanding PR & GR

Sep 29, 2004 · Replies 12 · Oct 1, 2004

Replies: 12

Views: 6K

Wikipedia's article on black holes

Sep 23, 2004 · Replies 2 · Sep 30, 2004

Replies: 2

Views: 3K

Special Relativity handling acceleration

Sep 29, 2004 · Replies 7 · Sep 30, 2004

Replies: 7

Views: 4K

Strange implications of NASA's Gravity Probe B

Sep 23, 2004 · Replies 2 · Sep 30, 2004

Replies: 2

Views: 2K

How do I calculate the area of a circle drawn on a sphere?

Sep 22, 2004 · Replies 2 · Sep 29, 2004

Replies: 2

Views: 13K

Wormholes mean changes to Relativity?

Sep 27, 2004 · Replies 7 · Sep 29, 2004

Replies: 7

Views: 2K

Understanding Relativity: A Quick Overview of General and Special Relativity

Sep 28, 2004 · Replies 6 · Sep 29, 2004

Replies: 6

Views: 2K

Question on the age of universe

Sep 27, 2004 · Replies 20 · Sep 29, 2004

Replies: 20

Views: 4K

Why Can't a Uniform External Gravitational Field Raise Tides on Earth?

Sep 26, 2004 · Replies 5 · Sep 27, 2004

Replies: 5

Views: 4K

Time Dilation & big bang Question

Aug 11, 2004 · Replies 93 · Sep 27, 2004

4

Replies: 93

Views: 18K

Poll

Decoding Einstein: Unraveling the Genius Behind the Theory of Relativity

Sep 20, 2004 · Replies 18 · Sep 27, 2004

Replies: 18

Views: 4K

Einstein's warping of space-time as a theory of gravity

Sep 24, 2004 · Replies 9 · Sep 27, 2004

Replies: 9

Views: 9K

Increasing mass, decreasing force?

Sep 14, 2004 · Replies 15 · Sep 26, 2004

Replies: 15

Views: 4K

The Peripatetic Albert, Round 3

Sep 16, 2004 · Replies 88 · Sep 26, 2004

3

Replies: 88

Views: 9K

A quickly oscillating mass produces a gravitationnal wave

Sep 24, 2004 · Replies 4 · Sep 25, 2004

Replies: 4

Views: 2K

The Soccer Ball Problem in Relativity

Sep 23, 2004 · Replies 2 · Sep 23, 2004

Replies: 2

Views: 6K

Whatever happened to testing relativity?

Sep 22, 2004 · Replies 11 · Sep 23, 2004

Replies: 11

Views: 2K

Kinetic Enrgey according to another viewer

Sep 20, 2004 · Replies 2 · Sep 20, 2004

Replies: 2

Views: 2K

Is There a Place in the Universe That is Truly at Rest?

Feb 6, 2004 · Replies 35 · Sep 20, 2004

2

Replies: 35

Views: 6K

Special Relativity in an (in)finite universe

Sep 10, 2004 · Replies 2 · Sep 17, 2004

Replies: 2

Views: 2K

Einstein's Theory of Mass-Energy Conversion: True or False?

Sep 16, 2004 · Replies 6 · Sep 17, 2004

Replies: 6

Views: 2K

Converting Energy into Matter: Is it Possible?

Sep 16, 2004 · Replies 3 · Sep 17, 2004

Replies: 3

Views: 2K

Do tachyons exist or not?if so causality will be failed

Sep 11, 2004 · Replies 8 · Sep 15, 2004

Replies: 8

Views: 3K

What Are the Theories Behind the Origins of Our Universe?

Sep 7, 2004 · Replies 2 · Sep 14, 2004

Replies: 2

Views: 2K

Why Isn't the Universe Just a Big Black Hole?

Sep 8, 2004 · Replies 18 · Sep 14, 2004

Replies: 18

Views: 3K

Common Errors in Anti-SR Theory: Syncing Distant Events

Sep 12, 2004 · Replies 10 · Sep 14, 2004

Replies: 10

Views: 2K

Binary pulsars and general relativity

Sep 10, 2004 · Replies 8 · Sep 13, 2004

Replies: 8

Views: 3K

Michelson Morley and Paul Marmet

Sep 8, 2004 · Replies 6 · Sep 13, 2004

Replies: 6

Views: 8K

Relativity for people who insist on having a true physical time

Sep 12, 2004 · Replies 6 · Sep 13, 2004

Replies: 6

Views: 4K

How does speed affect perceived time in David W. Hogg's SR Book?

Sep 8, 2004 · Replies 21 · Sep 12, 2004

Replies: 21

Views: 6K

Relativity

The theory of relativity, formulated by Albert Einstein, comprises two fundamental theories—special and general relativity. Special relativity, proposed in 1905, redefines our understanding of space and time by asserting the constancy of the speed of light for all observers and introducing concepts like time dilation and length contraction.

General relativity, presented in 1915, extends these principles to incorporate gravity. It describes gravity as the curvature of spacetime caused by massive objects, leading to phenomena like gravitational time dilation and the prediction of black holes. Einstein's equations have been consistently validated through experiments and observations, profoundly influencing our comprehension of the universe's fabric and dynamics.

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