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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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GR & 3rd Law: A Thought Experiment

Mar 16, 2006 · Replies 2 · Mar 18, 2006

Replies: 2

Views: 2K

Aetherists and the doppler effect

Mar 9, 2006 · Replies 13 · Mar 15, 2006

Replies: 13

Views: 4K

Does Space Expand Faster Than Light Beyond Our Observable Universe?

Mar 14, 2006 · Replies 1 · Mar 15, 2006

Replies: 1

Views: 3K

Questions about the speed of light

Mar 7, 2006 · Replies 13 · Mar 15, 2006

Replies: 13

Views: 5K

Special Relativity and Thermal Physics finals

Mar 14, 2006 · Replies 31 · Mar 15, 2006

2

Replies: 31

Views: 3K

Time difference: light emitted vs observed

Mar 11, 2006 · Replies 7 · Mar 14, 2006

Replies: 7

Views: 8K

Can Space Travel Faster Than the Speed of Light?

Mar 14, 2006 · Replies 13 · Mar 14, 2006

Replies: 13

Views: 4K

Time and Space dilation and contraction

Mar 10, 2006 · Replies 2 · Mar 14, 2006

Replies: 2

Views: 5K

Question about cause of curvature of spacetime

Mar 9, 2006 · Replies 14 · Mar 13, 2006

Replies: 14

Views: 4K

Charge Dilation: Mass/Energy Increase, Charge Constant

Mar 11, 2006 · Replies 4 · Mar 12, 2006

Replies: 4

Views: 3K

Curved spacetime is described by a manifold

Mar 10, 2006 · Replies 9 · Mar 11, 2006

Replies: 9

Views: 3K

Questions on Spacetime Curve/Gravity

Mar 10, 2006 · Replies 1 · Mar 10, 2006

Replies: 1

Views: 3K

Lorentz- and Galileian-transformation

Mar 1, 2006 · Replies 9 · Mar 10, 2006

Replies: 9

Views: 3K

Do Antitachyons Travel Slower Than Light?

Mar 10, 2006 · Replies 2 · Mar 10, 2006

Replies: 2

Views: 3K

Bending of Light around a Star

Mar 8, 2006 · Replies 1 · Mar 8, 2006

Replies: 1

Views: 3K

Photon passing through a black hole?

Mar 3, 2006 · Replies 24 · Mar 7, 2006

Replies: 24

Views: 9K

Why is the Angle Between Timelike Vectors Given by g(X,Y)?

Mar 2, 2006 · Replies 17 · Mar 7, 2006

Replies: 17

Views: 5K

Searching for "Perihelium Precession Problem" Derivation in General Relativity

Mar 3, 2006 · Replies 10 · Mar 7, 2006

Replies: 10

Views: 3K

Potential energy and GR, something doesn't add up

Mar 6, 2006 · Replies 6 · Mar 6, 2006

Replies: 6

Views: 2K

If SR Wrong: Difficulties, Paradoxes, Instantaneous Signals

Mar 4, 2006 · Replies 10 · Mar 6, 2006

Replies: 10

Views: 2K

Jerry Noble and His Theory: Unveiling a Mystery

Mar 6, 2006 · Replies 2 · Mar 6, 2006

Replies: 2

Views: 2K

Circular Twin Paradox: Non-Linear Acceleration and Age Differences Explained

Mar 3, 2006 · Replies 9 · Mar 6, 2006

Replies: 9

Views: 3K

Why is light traveling through the ether not just at speed c?

Mar 3, 2006 · Replies 4 · Mar 3, 2006

Replies: 4

Views: 2K

Detecting Space Time: Gravitational Radiation

Mar 1, 2006 · Replies 5 · Mar 2, 2006

Replies: 5

Views: 2K

Einstein's E=mc^2: How Did He Reach His Equation?

Feb 25, 2006 · Replies 17 · Mar 1, 2006

Replies: 17

Views: 3K

Lorentz transform as a complex function

Oct 5, 2005 · Replies 6 · Mar 1, 2006

Replies: 6

Views: 5K

Highschool student interested in cosmology

Feb 27, 2006 · Replies 9 · Mar 1, 2006

Replies: 9

Views: 3K

What Are the Energy and Wavelength Limitations of Light?

Feb 28, 2006 · Replies 4 · Mar 1, 2006

Replies: 4

Views: 3K

Space-Time Geometry: Consequences of Minkowski's Relativity

Feb 25, 2006 · Replies 6 · Feb 28, 2006

Replies: 6

Views: 3K

Black Hole: Seeing Inside & Out

Feb 25, 2006 · Replies 4 · Feb 27, 2006

Replies: 4

Views: 2K

Why Is the Position 4-Vector Contravariant While the Del Operator Is Covariant?

Feb 21, 2006 · Replies 13 · Feb 27, 2006

Replies: 13

Views: 3K

How does Einstein's theory explain gravity's effect on Earth's curvature?

Feb 27, 2006 · Replies 4 · Feb 27, 2006

Replies: 4

Views: 3K

How Does Weak Coupling Between Matter and Space-Time Affect Cosmic Structures?

Feb 17, 2006 · Replies 5 · Feb 27, 2006

Replies: 5

Views: 2K

Is the speed of light measurement dependent on local clocks?

Feb 17, 2006 · Replies 4 · Feb 26, 2006

Replies: 4

Views: 4K

Antigravity like soluctions of Einstein equations

Feb 15, 2006 · Replies 3 · Feb 26, 2006

Replies: 3

Views: 5K

The Significance of C in Einstein's Famous Equation E=MC^2

Feb 20, 2006 · Replies 11 · Feb 26, 2006

Replies: 11

Views: 5K

Understanding Kinetic Energy in Special Relativity

Feb 25, 2006 · Replies 8 · Feb 26, 2006

Replies: 8

Views: 3K

A variation on the twin paradox

Feb 10, 2006 · Replies 133 · Feb 25, 2006

5

Replies: 133

Views: 14K

A positronium atom decays into two photons c+c=c

Feb 24, 2006 · Replies 6 · Feb 25, 2006

Replies: 6

Views: 2K

Happy Birthday, Special Relativity

Jun 30, 2005 · Replies 40 · Feb 25, 2006

2

Replies: 40

Views: 5K

Is the Sagnac effect a valid argument against Relativity?

Feb 24, 2006 · Replies 8 · Feb 24, 2006

Replies: 8

Views: 4K

Relativistic Dynamics: Conservation Laws Necessary?

Feb 23, 2006 · Replies 4 · Feb 24, 2006

Replies: 4

Views: 3K

Space Travel: Time Dilation at Near Light Speed Explained

Feb 20, 2006 · Replies 15 · Feb 24, 2006

Replies: 15

Views: 4K

How do Orbits behave as orbital velocities become significantly relatavistic

Feb 14, 2006 · Replies 8 · Feb 22, 2006

Replies: 8

Views: 3K

Einstein's Childhood: The Roots of SR?

Jan 13, 2004 · Replies 1 · Feb 21, 2006

Replies: 1

Views: 3K

GR, SR and the Sagnac effect question

Feb 1, 2006 · Replies 6 · Feb 20, 2006

Replies: 6

Views: 4K

What is the constant velocity curve of an accelerating spaceship?

Feb 14, 2006 · Replies 23 · Feb 20, 2006

Replies: 23

Views: 6K

Magnetism & Relativity: Uncovering the Link Through Free Resources

Feb 17, 2006 · Replies 2 · Feb 20, 2006

Replies: 2

Views: 5K

Kumar's Explanation of the Twin Paradox

Feb 18, 2006 · Replies 10 · Feb 20, 2006

Replies: 10

Views: 3K

What Angular Velocity is Required for Relativistic Effects?

Feb 19, 2006 · Replies 1 · Feb 19, 2006

Replies: 1

Views: 2K

There is no really good definition of mass?

Feb 16, 2006 · Replies 12 · Feb 18, 2006

Replies: 12

Views: 3K

Gravity/acceleration equivalent?

Jan 31, 2006 · Replies 86 · Feb 18, 2006

3

Replies: 86

Views: 17K

Infinity in Finite Proper Time

Feb 16, 2006 · Replies 0 · Feb 16, 2006

Replies: 0

Views: 3K

Rotations in special relativity

Feb 11, 2006 · Replies 7 · Feb 16, 2006

Replies: 7

Views: 3K

Calculating Time Dilation for Travel to Alpha Centauri

Feb 15, 2006 · Replies 4 · Feb 15, 2006

Replies: 4

Views: 5K

What is the Relativator and How Does It Explain the Theory of Relativity?

Feb 10, 2006 · Replies 1 · Feb 14, 2006

Replies: 1

Views: 2K

Photons in the derivation of relativistic equations

Feb 12, 2006 · Replies 4 · Feb 13, 2006

Replies: 4

Views: 3K

Concerns about ontological interpetations of Theory of Relativity

Jan 30, 2006 · Replies 70 · Feb 12, 2006

3

Replies: 70

Views: 9K

What Does the Pace of Time Reveal About the Universe?

Feb 12, 2006 · Replies 2 · Feb 12, 2006

Replies: 2

Views: 4K

Can Superluminal Expansion Really Exceed the Speed of Light?

Feb 9, 2006 · Replies 13 · Feb 11, 2006

Replies: 13

Views: 4K

Is Lambda a True Force or Merely a Geometric Distortion in Spacetime?

Feb 11, 2006 · Replies 7 · Feb 11, 2006

Replies: 7

Views: 4K

Schwarzchild and Reissner-Nordstrom singularities

Feb 9, 2006 · Replies 1 · Feb 9, 2006

Replies: 1

Views: 4K

Not able to fully understand what im reading

Feb 9, 2006 · Replies 3 · Feb 9, 2006

Replies: 3

Views: 3K

Time Dilation: Does Traveling Perpendicular Affect Speed?

Dec 31, 2005 · Replies 14 · Feb 9, 2006

Replies: 14

Views: 7K

Gravity: Equivalence or Equal? | Tony's New Theory

Jan 24, 2006 · Replies 14 · Feb 8, 2006

Replies: 14

Views: 3K

Different speeds of light w/ Planck Units

Feb 6, 2006 · Replies 3 · Feb 7, 2006

Replies: 3

Views: 4K

Faster than light communication and signals moving backwards in time

Feb 4, 2006 · Replies 10 · Feb 7, 2006

Replies: 10

Views: 6K

Ageing in Space: Fact or Fiction?

Feb 4, 2006 · Replies 19 · Feb 6, 2006

Replies: 19

Views: 4K

Momentum and penetration depth

Feb 5, 2006 · Replies 2 · Feb 5, 2006

Replies: 2

Views: 6K

Traveling at Light Speed: Is the Speed Constant?

Feb 5, 2006 · Replies 1 · Feb 5, 2006

Replies: 1

Views: 2K

Can we project a 4D object onto the 3D world?

Feb 5, 2006 · Replies 2 · Feb 5, 2006

Replies: 2

Views: 2K

If C cannot be achieved, then how can light achieve C?

Feb 4, 2006 · Replies 11 · Feb 5, 2006

Replies: 11

Views: 3K

Understanding Information Propagation in Special Relativity: Explained

Feb 4, 2006 · Replies 1 · Feb 4, 2006

Replies: 1

Views: 2K

The Eternal Perspective of Photons: A Scientific Exploration

Jan 23, 2006 · Replies 32 · Feb 4, 2006

2

Replies: 32

Views: 17K

Question on speed(of light that is)

Feb 2, 2006 · Replies 5 · Feb 3, 2006

Replies: 5

Views: 2K

A Puzzling Paradox: Can Light Reach Infinite Velocity?

Feb 2, 2006 · Replies 3 · Feb 3, 2006

Replies: 3

Views: 2K

My Black Hole Theory: Ely Curless

Jan 9, 2006 · Replies 3 · Feb 3, 2006

Replies: 3

Views: 3K

How light is deflected by gravitational field

Feb 1, 2006 · Replies 14 · Feb 2, 2006

Replies: 14

Views: 3K

Why is space-time 3+1 dimensional?

Feb 2, 2006 · Replies 1 · Feb 2, 2006

Replies: 1

Views: 4K

How Can Objects Be Compressed Beyond Their Physical Space?

Jan 26, 2006 · Replies 5 · Feb 2, 2006

Replies: 5

Views: 19K

First experimental verification of GR

Feb 1, 2006 · Replies 6 · Feb 2, 2006

Replies: 6

Views: 3K

Is the Changing Clock Rate in Relativity Directionally Dependent?

Jan 8, 2006 · Replies 186 · Feb 1, 2006

7

Replies: 186

Views: 19K

Is the Riemann tensor always zero for the Rindler metric?

Jan 28, 2006 · Replies 16 · Feb 1, 2006

Replies: 16

Views: 4K

Can a photon get trapped in orbit around a black hole?

Jan 31, 2006 · Replies 2 · Feb 1, 2006

Replies: 2

Views: 3K

How Does the Twin Paradox Affect Time Perception in Accelerating Spaceships?

Jan 5, 2006 · Replies 18 · Jan 30, 2006

Replies: 18

Views: 4K

Newtonian Limit in G.R.: Differences Explained

Jan 30, 2006 · Replies 3 · Jan 30, 2006

Replies: 3

Views: 3K

Faster than the speed of Light ?

Jan 25, 2006 · Replies 16 · Jan 29, 2006

Replies: 16

Views: 4K

How Can I Calculate Time Dilation Between Two Observers?

Jan 29, 2006 · Replies 3 · Jan 29, 2006

Replies: 3

Views: 4K

Does a wristwatch measure imaginary time?

Jan 22, 2006 · Replies 11 · Jan 28, 2006

Replies: 11

Views: 4K

How can the Komar mass formula be simplified for a general static metric?

Jan 24, 2006 · Replies 2 · Jan 28, 2006

Replies: 2

Views: 4K

How Can Light Have Mass Yet Fail to Escape a Black Hole?

Jan 25, 2006 · Replies 19 · Jan 28, 2006

Replies: 19

Views: 3K

Searching for Ricci Scalar in Schwarzschild Metric

Jan 17, 2006 · Replies 2 · Jan 27, 2006

Replies: 2

Views: 12K

Relativity is broken"Relativity Broken: Uncovering the Mystery

Jan 6, 2006 · Replies 79 · Jan 26, 2006

3

Replies: 79

Views: 10K

Relativistic Velocity: Can I Run Faster Than Light?

Jan 25, 2006 · Replies 4 · Jan 25, 2006

Replies: 4

Views: 3K

Imaginary Mass: Understanding Tachyons

Jan 25, 2006 · Replies 4 · Jan 25, 2006

Replies: 4

Views: 7K

Bus that is travelling at the speed of light

Jan 6, 2006 · Replies 25 · Jan 25, 2006

Replies: 25

Views: 5K

What Are the Time Frame Differences Between Us and Quasars?

Jan 23, 2006 · Replies 7 · Jan 24, 2006

Replies: 7

Views: 2K

Vacuum with cosmological constant

Jan 22, 2006 · Replies 9 · Jan 23, 2006

Replies: 9

Views: 2K

Relativistic Apple: Feel Gravitational Effects?

Jan 22, 2006 · Replies 4 · Jan 23, 2006

Replies: 4

Views: 2K

Does general relativity predict expansion?

Jan 18, 2006 · Replies 18 · Jan 23, 2006

Replies: 18

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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