Menu

Navigation

More options

Style variation

Contact us

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.

Filters

Can Objects Really Travel Through Forbidden Space Between Black and White Holes?

Jan 12, 2005 · Replies 3 · Jan 13, 2005

Replies: 3

Views: 2K

Electric Charge Oscillation & Light Waves

Jan 12, 2005 · Replies 13 · Jan 13, 2005

Replies: 13

Views: 3K

Graviton and the equivalence principle

Jan 10, 2005 · Replies 7 · Jan 12, 2005

Replies: 7

Views: 3K

Discovered a way to make MOND fully relativistic

Jan 9, 2005 · Replies 4 · Jan 11, 2005

Replies: 4

Views: 3K

Spacetime wave orbits black hole

Jan 11, 2005 · Replies 2 · Jan 11, 2005

Replies: 2

Views: 3K

Special Relativity vs Alternatives

Jan 8, 2005 · Replies 19 · Jan 11, 2005

Replies: 19

Views: 4K

Relative positions in time - How does SRT define them.

Jan 8, 2005 · Replies 11 · Jan 10, 2005

Replies: 11

Views: 3K

Relativity & Quran: Is Bible Wrong?

Jan 3, 2005 · Replies 2 · Jan 10, 2005

Replies: 2

Views: 5K

How do you calculate time dilation in a gravitational field

Jan 1, 2005 · Replies 19 · Jan 9, 2005

Replies: 19

Views: 18K

The Twin Paradox: Understanding Time Dilation in Space Travel

Dec 7, 2004 · Replies 114 · Jan 8, 2005

4

Replies: 114

Views: 13K

Note the comment on SR herein:

Jan 8, 2005 · Replies 2 · Jan 8, 2005

Replies: 2

Views: 2K

Testing the Postulate of Special Relativity

Jan 6, 2005 · Replies 12 · Jan 7, 2005

Replies: 12

Views: 2K

Explaining Special Relativity: Increasing Resistance to Acceleration

Jan 4, 2005 · Replies 6 · Jan 7, 2005

Replies: 6

Views: 2K

Bob's Spaceship: Length Contradiction & Time Difference

Jan 5, 2005 · Replies 10 · Jan 7, 2005

Replies: 10

Views: 3K

Can anyone explain the Twin Paradox in special relativity?

Jan 6, 2005 · Replies 4 · Jan 7, 2005

Replies: 4

Views: 2K

Ph. D. in Mathematics or Physics (Relativity)

Dec 30, 2004 · Replies 2 · Jan 7, 2005

Replies: 2

Views: 3K

How Does Relativity Affect Information Exchange Between Moving Observers?

Dec 30, 2004 · Replies 2 · Jan 6, 2005

Replies: 2

Views: 2K

Light Geodesic Path: Troubleshooting Post Deletion

Jan 4, 2005 · Replies 8 · Jan 6, 2005

Replies: 8

Views: 4K

Why Does a Chain Snap Between Train Cars at High Speeds in Relativity?

Jan 4, 2005 · Replies 6 · Jan 4, 2005

Replies: 6

Views: 3K

Geometric field / Thirring Lense / Red shift

Jan 3, 2005 · Replies 3 · Jan 4, 2005

Replies: 3

Views: 3K

Understanding Gravity: The Curvature of Space-Time and Kinetic Energy

Jan 4, 2005 · Replies 3 · Jan 4, 2005

Replies: 3

Views: 3K

What if the guy on the train throws the ball backwards (u'=-.99c)?

Dec 23, 2004 · Replies 2 · Jan 3, 2005

Replies: 2

Views: 3K

Is the Missing Mass in Nuclei Equal to Nuclear Potential Energy?

Jan 1, 2005 · Replies 19 · Jan 3, 2005

Replies: 19

Views: 4K

Question on feasibility of relativistic travel

Jan 1, 2005 · Replies 7 · Jan 2, 2005

Replies: 7

Views: 6K

Solving Escape Velocity of the Sun: Troubleshooting an Error

Jan 2, 2005 · Replies 5 · Jan 2, 2005

Replies: 5

Views: 3K

GR & Higgs Field: Linked by Mass?

Dec 26, 2004 · Replies 5 · Jan 2, 2005

Replies: 5

Views: 4K

A interesting problem in relativity

Dec 30, 2004 · Replies 4 · Dec 31, 2004

Replies: 4

Views: 3K

Is the Speed of Gravity Equal to the Speed of Light?

Dec 11, 2004 · Replies 66 · Dec 30, 2004

3

Replies: 66

Views: 13K

When is the radiation from an accelerated charge a matter of controversy?

Dec 25, 2004 · Replies 55 · Dec 29, 2004

2

Replies: 55

Views: 14K

Can Photons Have Reference Frames in Special Relativity?

Dec 26, 2004 · Replies 9 · Dec 29, 2004

Replies: 9

Views: 2K

Relative Velocity of a Car on a Moving Truck

Dec 28, 2004 · Replies 2 · Dec 28, 2004

Replies: 2

Views: 2K

Proving relativistic blueshift with Lorentz transforms only

Dec 27, 2004 · Replies 7 · Dec 27, 2004

Replies: 7

Views: 3K

Mathematically rigorous definition of time ?

Dec 23, 2004 · Replies 16 · Dec 27, 2004

Replies: 16

Views: 3K

Riemann curvature tensor derivation

Dec 23, 2004 · Replies 4 · Dec 27, 2004

Replies: 4

Views: 11K

What is the problem with GR and quantum

Dec 22, 2004 · Replies 7 · Dec 26, 2004

Replies: 7

Views: 2K

If you travel faster than the speed of light, do you open up a black hole?

Dec 24, 2004 · Replies 9 · Dec 26, 2004

Replies: 9

Views: 4K

Why arent Plancks constant's relative?

Dec 14, 2004 · Replies 15 · Dec 26, 2004

Replies: 15

Views: 5K

Just how far away is that star?

Dec 21, 2004 · Replies 15 · Dec 25, 2004

Replies: 15

Views: 5K

What is the Gravity Equation for Understanding Mass and Black Holes?

Dec 24, 2004 · Replies 3 · Dec 25, 2004

Replies: 3

Views: 3K

Where to Find Theodor Kaluza's Paper Sent to Albert Einstein?

Dec 17, 2004 · Replies 2 · Dec 24, 2004

Replies: 2

Views: 5K

Is it Possible to Resolve the SR Time Dilation Problem? Help Needed!

Dec 23, 2004 · Replies 4 · Dec 24, 2004

Replies: 4

Views: 3K

Does Mass Change with Energy Exchange in Orbiting Bodies?

Dec 21, 2004 · Replies 22 · Dec 23, 2004

Replies: 22

Views: 4K

Teaching vs Doing: The Role of Concepts in Research - Insights from Physics

Dec 17, 2004 · Replies 41 · Dec 23, 2004

2

Replies: 41

Views: 5K

Infinite Time and Hawking Radiation

Dec 17, 2004 · Replies 12 · Dec 22, 2004

Replies: 12

Views: 3K

Exploring Gravity's Peculiar Features: T Padmanabhan's Latest Paper

Dec 15, 2004 · Replies 2 · Dec 22, 2004

Replies: 2

Views: 4K

Mass Gain in Supernovae & Black Holes: Explaining Unaccounted Mass

Dec 11, 2004 · Replies 6 · Dec 20, 2004

Replies: 6

Views: 2K

Q theory, Relativistic Mass and Einstein

Dec 18, 2004 · Replies 15 · Dec 20, 2004

Replies: 15

Views: 4K

Gravitation from the Ground Up - B.F. Schutz

Dec 15, 2004 · Replies 6 · Dec 19, 2004

Replies: 6

Views: 3K

Is universal time the 4th or 5th Dimension?

Dec 17, 2004 · Replies 3 · Dec 18, 2004

Replies: 3

Views: 9K

Is Gravity an Attractive Force?

Dec 18, 2004 · Replies 10 · Dec 18, 2004

Replies: 10

Views: 5K

Seeking a Resolution to the Bug-Rivet Paradox

Dec 17, 2004 · Replies 4 · Dec 18, 2004

Replies: 4

Views: 15K

Scientific alternative to the anthropic principle

Dec 16, 2004 · Replies 7 · Dec 16, 2004

Replies: 7

Views: 3K

Beyond c if time goes positive does V decrease?

Dec 14, 2004 · Replies 8 · Dec 16, 2004

Replies: 8

Views: 3K

Why do photons naturally travel at c?

Nov 26, 2004 · Replies 36 · Dec 16, 2004

2

Replies: 36

Views: 6K

Mass of Photon: Consequences & Experiments - L.C. Tu et al (2004)

Nov 23, 2004 · Replies 78 · Dec 16, 2004

3

Replies: 78

Views: 10K

Is the universe's potential energy related to the mass inside a shell of matter?

Dec 14, 2004 · Replies 6 · Dec 15, 2004

Replies: 6

Views: 2K

Laws of physics in four-vector form. A question.

Dec 14, 2004 · Replies 2 · Dec 14, 2004

Replies: 2

Views: 3K

How objects look at high speeds

Dec 13, 2004 · Replies 2 · Dec 13, 2004

Replies: 2

Views: 2K

Many Worlds Interpretation of SR

Dec 13, 2004 · Replies 4 · Dec 13, 2004

Replies: 4

Views: 4K

Einstein´s work ion Unified Field Theory

Dec 12, 2004 · Replies 4 · Dec 13, 2004

Replies: 4

Views: 3K

Paradoxes that have come up for special relativity

Nov 8, 2004 · Replies 39 · Dec 13, 2004

2

Replies: 39

Views: 8K

Technical paper on Lense-Thirring Lageos measurement

Dec 12, 2004 · Replies 4 · Dec 13, 2004

Replies: 4

Views: 3K

GR Metric Meaning: Unpacking Confusion

Nov 29, 2004 · Replies 41 · Dec 11, 2004

2

Replies: 41

Views: 9K

Does a single photon have 'color'

Dec 7, 2004 · Replies 13 · Dec 10, 2004

Replies: 13

Views: 17K

Deriving the Special Relativity Formula: A Scientific Approach

Dec 10, 2004 · Replies 6 · Dec 10, 2004

Replies: 6

Views: 2K

Shining a Torch at the Moon: Does Light Travel Faster than c?

Dec 10, 2004 · Replies 6 · Dec 10, 2004

Replies: 6

Views: 3K

Is Time Dilation Just a Virtual Effect in Relativity?

Dec 10, 2004 · Replies 2 · Dec 10, 2004

Replies: 2

Views: 2K

What is the direction of space curvature around a mass in 3D space?

Dec 8, 2004 · Replies 9 · Dec 9, 2004

Replies: 9

Views: 4K

1st postulate of Special Relativity

Dec 8, 2004 · Replies 4 · Dec 9, 2004

Replies: 4

Views: 3K

RTT’s mind boggling Time Dilation Paradox

Nov 28, 2004 · Replies 16 · Dec 9, 2004

Replies: 16

Views: 4K

Special Relativity for the School Going Child

Nov 30, 2004 · Replies 15 · Dec 9, 2004

Replies: 15

Views: 3K

Learn Relativity: Exercises & Solutions

Dec 5, 2004 · Replies 5 · Dec 6, 2004

Replies: 5

Views: 3K

What Are Defined Quantities in Physics Like Momentum, Velocity, and Force?

Dec 6, 2004 · Replies 10 · Dec 6, 2004

Replies: 10

Views: 10K

Relativity Q: Light Beam Speed Relative to Object & Observer

Dec 5, 2004 · Replies 5 · Dec 6, 2004

Replies: 5

Views: 2K

What Are Parallel Universes and Their Connection to Time Travel?

Nov 8, 2004 · Replies 24 · Dec 6, 2004

Replies: 24

Views: 6K

What are the implications of GR that are not captured by gravitomagnetism?

Dec 1, 2004 · Replies 10 · Dec 5, 2004

Replies: 10

Views: 4K

Space curvature allows time travel to the past

Nov 26, 2004 · Replies 4 · Dec 5, 2004

Replies: 4

Views: 4K

Centrifugal force from GR perspective

Nov 15, 2004 · Replies 32 · Dec 5, 2004

2

Replies: 32

Views: 6K

Why do we consider time as the 4th dimension?

Dec 3, 2004 · Replies 7 · Dec 4, 2004

Replies: 7

Views: 7K

Arrow of time and why it flows in only one direction

Nov 19, 2004 · Replies 2 · Dec 3, 2004

Replies: 2

Views: 3K

Why Can't Information Travel Faster Than Light Without Breaking Causality?

Dec 1, 2004 · Replies 3 · Dec 1, 2004

Replies: 3

Views: 2K

Understanding Potential and Potential Energy in Relativistic Electrodynamics

Nov 23, 2004 · Replies 5 · Dec 1, 2004

Replies: 5

Views: 2K

How Does Our Understanding of Black Holes Challenge the Age of the Universe?

Dec 1, 2004 · Replies 3 · Dec 1, 2004

Replies: 3

Views: 2K

Do Black Holes Have Dimension?

Nov 23, 2004 · Replies 2 · Nov 30, 2004

Replies: 2

Views: 2K

Special and General relativity

Nov 29, 2004 · Replies 5 · Nov 29, 2004

Replies: 5

Views: 4K

Is the Speed of Light Affected by Atmospheric Conditions?

Nov 27, 2004 · Replies 3 · Nov 28, 2004

Replies: 3

Views: 2K

What are your favorite web pages on SR?

Nov 27, 2004 · Replies 2 · Nov 27, 2004

Replies: 2

Views: 2K

Black holes and Hawking radiation

Nov 15, 2004 · Replies 14 · Nov 26, 2004

Replies: 14

Views: 4K

The whole racing with light thingy.

Nov 25, 2004 · Replies 2 · Nov 26, 2004

Replies: 2

Views: 2K

Can Exceeding the Speed of Light Reverse Time?

Nov 23, 2004 · Replies 2 · Nov 26, 2004

Replies: 2

Views: 3K

Where Can I Find the Ricci Tensor/Scalar for a Circularly Symmetric Spacetime?

Nov 24, 2004 · Replies 2 · Nov 24, 2004

Replies: 2

Views: 2K

Communication with a Million-Mile Pole: A Relativity Puzzle?

Nov 24, 2004 · Replies 2 · Nov 24, 2004

Replies: 2

Views: 2K

Relativity Notes: Understanding Scalars & Vectors

Nov 17, 2004 · Replies 2 · Nov 24, 2004

Replies: 2

Views: 2K

Special relativity and Universe expansion.

Nov 23, 2004 · Replies 3 · Nov 24, 2004

Replies: 3

Views: 5K

Terrestrial phenomena significantly influenced by GR?

Nov 19, 2004 · Replies 5 · Nov 22, 2004

Replies: 5

Views: 2K

Reconciling Assumptions: Understanding the Concept of the Age of the Universe

Nov 22, 2004 · Replies 2 · Nov 22, 2004

Replies: 2

Views: 3K

Names of 4-Vector Norms & Physical Quantities

Nov 22, 2004 · Replies 2 · Nov 22, 2004

Replies: 2

Views: 4K

Far Gravitational field of a moving mass

Nov 9, 2004 · Replies 13 · Nov 22, 2004

Replies: 13

Views: 3K

Is the Speed of Light Really Constant?

Nov 21, 2004 · Replies 3 · Nov 21, 2004

Replies: 3

Views: 3K

Understanding Interferometers: Principle, Methodology, and Applications

Nov 18, 2004 · Replies 4 · Nov 19, 2004

Replies: 4

Views: 4K

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.

Top