Special and General Relativity Forum

Post thread
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.
High School Einstein's Childhood: The Roots of SR?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate GR, SR and the Sagnac effect question
  • · Replies 6 ·
Replies
6
Views
4K
Graduate What is the constant velocity curve of an accelerating spaceship?
  • · Replies 23 ·
Replies
23
Views
6K
Graduate Magnetism & Relativity: Uncovering the Link Through Free Resources
  • · Replies 2 ·
Replies
2
Views
5K
High School Kumar's Explanation of the Twin Paradox
  • · Replies 10 ·
Replies
10
Views
3K
Graduate What Angular Velocity is Required for Relativistic Effects?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate There is no really good definition of mass?
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Gravity/acceleration equivalent?
  • · Replies 86 ·
3
Replies
86
Views
18K
Graduate Infinity in Finite Proper Time
  • · Replies 0 ·
Replies
0
Views
3K
Graduate Rotations in special relativity
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Calculating Time Dilation for Travel to Alpha Centauri
  • · Replies 4 ·
Replies
4
Views
5K
Graduate What is the Relativator and How Does It Explain the Theory of Relativity?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Photons in the derivation of relativistic equations
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Concerns about ontological interpetations of Theory of Relativity
  • · Replies 70 ·
3
Replies
70
Views
10K
Graduate What Does the Pace of Time Reveal About the Universe?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Can Superluminal Expansion Really Exceed the Speed of Light?
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Is Lambda a True Force or Merely a Geometric Distortion in Spacetime?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Schwarzchild and Reissner-Nordstrom singularities
  • · Replies 1 ·
Replies
1
Views
5K
Undergrad Not able to fully understand what im reading
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Time Dilation: Does Traveling Perpendicular Affect Speed?
  • · Replies 14 ·
Replies
14
Views
7K
Graduate Gravity: Equivalence or Equal? | Tony's New Theory
  • · Replies 14 ·
Replies
14
Views
3K
Graduate Different speeds of light w/ Planck Units
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Faster than light communication and signals moving backwards in time
  • · Replies 10 ·
Replies
10
Views
6K
High School Ageing in Space: Fact or Fiction?
  • · Replies 19 ·
Replies
19
Views
4K
Graduate Momentum and penetration depth
  • · Replies 2 ·
Replies
2
Views
7K
Graduate Traveling at Light Speed: Is the Speed Constant?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Can we project a 4D object onto the 3D world?
  • · Replies 2 ·
Replies
2
Views
2K
High School If C cannot be achieved, then how can light achieve C?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Understanding Information Propagation in Special Relativity: Explained
  • · Replies 1 ·
Replies
1
Views
2K
Graduate The Eternal Perspective of Photons: A Scientific Exploration
  • · Replies 32 ·
2
Replies
32
Views
17K
Graduate Question on speed(of light that is)
  • · Replies 5 ·
Replies
5
Views
2K
Graduate A Puzzling Paradox: Can Light Reach Infinite Velocity?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad My Black Hole Theory: Ely Curless
  • · Replies 3 ·
Replies
3
Views
3K
Graduate How light is deflected by gravitational field
  • · Replies 14 ·
Replies
14
Views
3K
Graduate Why is space-time 3+1 dimensional?
  • · Replies 1 ·
Replies
1
Views
4K
Graduate How Can Objects Be Compressed Beyond Their Physical Space?
  • · Replies 5 ·
Replies
5
Views
20K
Graduate First experimental verification of GR
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Is the Changing Clock Rate in Relativity Directionally Dependent?
  • · Replies 186 ·
7
Replies
186
Views
20K
Graduate Is the Riemann tensor always zero for the Rindler metric?
  • · Replies 16 ·
Replies
16
Views
4K
Graduate Can a photon get trapped in orbit around a black hole?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate How Does the Twin Paradox Affect Time Perception in Accelerating Spaceships?
  • · Replies 18 ·
Replies
18
Views
4K
Graduate Newtonian Limit in G.R.: Differences Explained
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Faster than the speed of Light ?
  • · Replies 16 ·
Replies
16
Views
4K
Graduate How Can I Calculate Time Dilation Between Two Observers?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Does a wristwatch measure imaginary time?
  • · Replies 11 ·
Replies
11
Views
4K
Graduate How can the Komar mass formula be simplified for a general static metric?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad How Can Light Have Mass Yet Fail to Escape a Black Hole?
  • · Replies 19 ·
Replies
19
Views
3K
Graduate Searching for Ricci Scalar in Schwarzschild Metric
  • · Replies 2 ·
Replies
2
Views
12K
Graduate Relativity is broken"Relativity Broken: Uncovering the Mystery
  • · Replies 79 ·
3
Replies
79
Views
11K
Graduate Relativistic Velocity: Can I Run Faster Than Light?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Imaginary Mass: Understanding Tachyons
  • · Replies 4 ·
Replies
4
Views
7K
Graduate Bus that is travelling at the speed of light
  • · Replies 25 ·
Replies
25
Views
5K
Graduate What Are the Time Frame Differences Between Us and Quasars?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Vacuum with cosmological constant
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Relativistic Apple: Feel Gravitational Effects?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Does general relativity predict expansion?
  • · Replies 18 ·
Replies
18
Views
6K
Graduate Fields and relativity - a broad question
  • · Replies 1 ·
Replies
1
Views
2K
High School Increase in mass & decrease in volume?
  • · Replies 9 ·
Replies
9
Views
10K
Graduate Relativistic velocities of uncharged particles
  • · Replies 14 ·
Replies
14
Views
4K
Undergrad Is Time Travel to the Past Possible with Modern Technology?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Length contraction and special relativity
  • · Replies 23 ·
Replies
23
Views
6K
Graduate Is E=mc^2 Confirmed with High Accuracy? NIST Experiment Provides Strong Evidence
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why Don't Singularities Instantly Suck Everything In?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate The Foundations of Relativity II
  • · Replies 17 ·
Replies
17
Views
5K
Graduate Is the Muon's Perception of Distance Correct in Relativity?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate How Does Our Movement Through Spacetime Influence the Perception of Time?
  • · Replies 31 ·
2
Replies
31
Views
4K
Undergrad This is probably just a coincidence, but
  • · Replies 10 ·
Replies
10
Views
3K
Graduate What Would a Traveler See When Falling into a Black Hole?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Time variation in the event horizon
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Is Acceleration Impacting Time Perception a Solvable Paradox?
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Understanding the Structure and Transformation of Tensors in Spacetime
  • · Replies 86 ·
3
Replies
86
Views
13K
Graduate Triplet Paradox: Solve the Contradiction!
  • · Replies 12 ·
Replies
12
Views
7K
High School Why is c Squared in the Equation e=mc^2?
  • · Replies 9 ·
Replies
9
Views
13K
Graduate The Logic Behind Einstein's Relativity of Time
  • · Replies 39 ·
2
Replies
39
Views
7K
Graduate Questions on Horizons: Difference Between Event & Apparent Horizons
  • · Replies 13 ·
Replies
13
Views
4K
Graduate What Determines the Size and Density of a Black Hole?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Why do objects follow curved trajectories under Earth's gravity?
  • · Replies 50 ·
2
Replies
50
Views
10K
Graduate Teleportation-possible or not?
  • · Replies 11 ·
Replies
11
Views
10K
Graduate Schwarzschild Metric with multiple masses
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Distorted, structure (3D) vs warped, fabric (2D)
  • · Replies 6 ·
Replies
6
Views
3K
Graduate How to imagine distorted space
  • · Replies 10 ·
Replies
10
Views
4K
Graduate What is a bifurcation surface and a binormal vector?
  • · Replies 1 ·
Replies
1
Views
8K
Graduate Could Relativity Still Apply in a Universe Filled with Water?
  • · Replies 48 ·
2
Replies
48
Views
9K
Graduate Relativity : the Special and General Theory
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Calculating Observer C's Speed from Point A as Observed by Observer B
  • · Replies 15 ·
Replies
15
Views
3K
High School What Are Matter, Energy, and Space in Our Physical Universe?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Holographic Principle: Entropy & Area for Observers Moving w/BH
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Understanding the Length Contraction Paradox in Special Relativity
  • · Replies 10 ·
Replies
10
Views
6K
Graduate Neutroscopic methods in General Relativity
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Can Wormholes Enable Time Travel to the Past?
  • · Replies 25 ·
Replies
25
Views
7K
Graduate My Twin in a Schwarzschild Black Hole: What Would He See?
  • · Replies 17 ·
Replies
17
Views
7K
Graduate I've got a black hole in my understanding
  • · Replies 1 ·
Replies
1
Views
2K
Confirmed: E=mc^2 Validated Once Again, Despite Skepticism | PhysLink
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Simultaneity Confusion in Relativity
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Unraveling the Mystery of Warped 4D Spacetime
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Back Reaction in Black Hole Physics and GR
  • · Replies 1 ·
Replies
1
Views
5K
Graduate Is Gravity Explained by the Dimple in Space-Time Fabric?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Are Experiments Proving Length Contraction?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Rotations in Special Relativity
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Does a Black Hole's Event Horizon Increase with Mass?
  • · Replies 9 ·
Replies
9
Views
5K