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.
Graduate What scientific experiments have been invalidated by extinction phenomena?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad NASA's Stance on Warp Drive: Could FTL Travel Be Possible?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What doesn't have gravitational mass?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What is the Wedge Product and How is it Defined?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Frequency shift of light between observers in Schwarzschild space-time
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad (special) relativistic effects made clear in animation
  • · Replies 1 ·
Replies
1
Views
3K
Graduate How Does the Unruh Effect Differ Between Observers in Motion and at Rest?
  • · Replies 9 ·
Replies
9
Views
4K
Graduate What is the Classical Pendulum Paradox?
  • · Replies 28 ·
Replies
28
Views
8K
Graduate Converting Geometrized Units: The Role of G and c in Christoffel Symbols
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Electron Beam Speed in TV Picture Tubes: Explaining Special Relativity
  • · Replies 14 ·
Replies
14
Views
7K
Graduate Why Are Two Indices Used for the Generators of Lorentz and Poincare Groups?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Can Pulsed Gravity Waves Be Used for Faster-Than-Light Communication?
  • · Replies 9 ·
Replies
9
Views
4K
Graduate How Does Rotation Affect Gravity and Relativity Perception?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Time and Space: What Happens When Two Men Meet in Adjacent Rockets?
  • · Replies 40 ·
2
Replies
40
Views
6K
Graduate How often does mass effect space
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Relativistic mass and space-time curvature
  • · Replies 10 ·
Replies
10
Views
4K
Undergrad Traveling at 0.5c: Time Dilation & Length Contraction
  • · Replies 13 ·
Replies
13
Views
4K
High School Is the speed of light a constant
  • · Replies 32 ·
2
Replies
32
Views
6K
Graduate Is Light's Speed Limit Universal for All Massless Particles?
  • · Replies 13 ·
Replies
13
Views
3K
Graduate A Thought Experiment with Time Dilation
  • · Replies 2 ·
Replies
2
Views
6K
Graduate Understanding Black Holes: Questions About Event Horizon
  • · Replies 34 ·
2
Replies
34
Views
6K
Graduate Is Special Relativity Based on Human Error?
  • · Replies 24 ·
Replies
24
Views
4K
Graduate Would Gravity Waves Show Doppler Shift?
  • · Replies 10 ·
Replies
10
Views
5K
Graduate Is Spherically Symmetric Spacetime Algebraically Special?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Does the metric really represent intrinsic spacetime in plain English?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Thought Experiments: Will Spaceship B Move Immediately?
  • · Replies 16 ·
Replies
16
Views
5K
Graduate Calculating Angular Distance in SR
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Gravity Warps Space & Time: A cm Difference?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Uncovering the Mystery of Photons in Orbit: Factors Affecting Their Movement"
  • · Replies 23 ·
Replies
23
Views
5K
Graduate Traveling from Point A to Point B at the Speed of Light
  • · Replies 20 ·
Replies
20
Views
4K
Graduate How does the theory of relativity explain changes in mass and energy?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Tensors for Relativity Without Tears
  • · Replies 3 ·
Replies
3
Views
8K
Graduate Advance of Perihelion: Mercury's Formula & Approximations
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Calculating Homothetic Vector Fields
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Analogue of Lorentz transformation in General Relativity.
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Whom do we consider as moving in special theory of relativity?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate A more interesting Pendulum Paradox
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Possible Analogy for Objects Moving at C
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Help with McMahon's Relativity
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad How Can V Draw Space Time Curve
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Space-Like Intervals: Can Events Effect Each Other?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate What is the meaning of topological black holes?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Warped Space or Gravitons: Which Theory Explains Gravity Better?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Unveiling the Non-Zero Components of Riemann Tensor for Schwarzschild Curvature
  • · Replies 3 ·
Replies
3
Views
7K
Graduate Is Space Infinitely Small and Large Without a Medium?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Can Time Dilation from Special Relativity Unlock Superpowers?
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Photon Acceleration: Speed, Mass & Emission
  • · Replies 11 ·
Replies
11
Views
4K
Graduate What properties of space determine gravity velocity?
  • · Replies 9 ·
Replies
9
Views
5K
Undergrad Time Dilation: Einstein's Theory of Time-Shift
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Light speed in relation to the size of the universe
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Can Photons Travel the Same Path at Different Speeds?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate A weird spherically symmetric metric
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Negative Clock Readings: Compatible with Relativity?
  • · Replies 5 ·
Replies
5
Views
5K
Graduate Are Artificial Black Holes Created in the LHC Safe for Earth?
  • · Replies 11 ·
Replies
11
Views
4K
Graduate Gravity & Massless Particles: Why Does it Affect Photons?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Is there a gravitational equivalent to magnetism?
  • · Replies 12 ·
Replies
12
Views
5K
Graduate How Fast Does Gravity Travel to a Black Hole if the Sun Vanishes?
  • · Replies 12 ·
Replies
12
Views
4K
Undergrad Is motion relative to the size of an object
  • · Replies 18 ·
Replies
18
Views
4K
Graduate Little problem with group velocity
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Questions about acceleration in SR
  • · Replies 32 ·
2
Replies
32
Views
12K
Graduate Does Traveling at Light Speed Eliminate the Dimension of Time?
  • · Replies 8 ·
Replies
8
Views
3K
Graduate 3 and 4 velocity and acceleration
  • · Replies 10 ·
Replies
10
Views
4K
Graduate In this scenario is faster then light speed possible?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Gravity: Thoughts on Earth's Center Point
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Geodesics in metric geometry and affine
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Coordinate transformation and choice of a suitable coordinate system.
  • · Replies 2 ·
Replies
2
Views
6K
Graduate Why Do Black Hole Models Assume Singularities as Facts?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Does acceleration cause time dilation?
  • · Replies 85 ·
3
Replies
85
Views
30K
Undergrad Is There a Flaw in the Michelson-Morley Experiment?
  • · Replies 69 ·
3
Replies
69
Views
12K
Graduate Absolute Zero and time travel?
  • · Replies 14 ·
Replies
14
Views
7K
Graduate On GR and Interstellar exploration
  • · Replies 4 ·
Replies
4
Views
2K
High School Does Taking a Step Forward Affect Age Difference in Time Dilation?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Is the Velocity of Light Truly Constant Regardless of Your Motion?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Re: time-space Why the paradoxes of time? (CONFUSED)
  • · Replies 10 ·
Replies
10
Views
4K
Undergrad Can Inert Gases Exhibit Electric Activity in Our Atmosphere?
  • · Replies 28 ·
Replies
28
Views
9K
Undergrad Question about Acceleration and Relativity
  • · Replies 11 ·
Replies
11
Views
4K
Graduate Understanding Time Dilation in Special Relativity
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Uncovering the Truth: The Michaelson-Morley Experiment and Earth's Motion
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Rest length in general relativity
  • · Replies 124 ·
5
Replies
124
Views
21K
Graduate Are Space and Time Inseparable Aspects of Our Universe?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate On The Ether Concept In Physics
  • · Replies 5 ·
Replies
5
Views
9K
Graduate Relative Moving Charge: Electric vs Magnetic Field
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Measuring Light Speed & Slowing it Down with Matter
  • · Replies 13 ·
Replies
13
Views
3K
Graduate The General Principle of Relativity
  • · Replies 19 ·
Replies
19
Views
4K
Graduate Does Traveling at Light Speed Freeze Time?
  • · Replies 31 ·
2
Replies
31
Views
5K
Graduate Could we say that velocity of light does not remain constant in time,
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Train A and B's Speed of Light Encounter: A Physics Question
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Was Einstein's Pursuit of Unified Field Theory Fruitful in His Final Years?
  • · Replies 11 ·
Replies
11
Views
7K
Undergrad Velocity of light remain costant in a gravitational field?
  • · Replies 15 ·
Replies
15
Views
3K
Graduate Speed of light - with observer experiencing gravity
  • · Replies 2 ·
Replies
2
Views
2K
Graduate New Relativity FAQ: Understanding Mass in Special Relativity
  • · Replies 20 ·
Replies
20
Views
5K
Graduate Gravity Red Shift: Can it Happen?
  • · Replies 6 ·
Replies
6
Views
6K
Graduate Group theory and Spacetime symmetries
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Length of Meter Stick Near Event Horizon of Black Hole
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Just a simple question about the speed of light and c^2.
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Who coined the term relativistic mass
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Curved space-time and dimensions
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Pushing in the wrong direction
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Worldline of photon in comoving coordinates.
  • · Replies 18 ·
Replies
18
Views
6K
Graduate Energy-momentum tensor for a scalar field (sign problem)
  • · Replies 2 ·
Replies
2
Views
8K