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 Relative velocity and speed of light
  • · Replies 17 ·
Replies
17
Views
5K
Graduate Gravitational time dilation and escape velocity
  • · Replies 17 ·
Replies
17
Views
4K
Graduate Why is there a Minus in Spacetime Interval Formula?
  • · Replies 36 ·
2
Replies
36
Views
12K
Graduate Relativistic Magnetic Field of a moving charge
  • · Replies 8 ·
Replies
8
Views
4K
Undergrad What is a joule, when you calculate relativistic energy?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate How Does the Affine Connection Contract in General Relativity?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Question about instantaneous travel of information on a solid
  • · Replies 25 ·
Replies
25
Views
7K
Graduate Complex Space Time: Interpret Metric Tensor gmn
  • · Replies 16 ·
Replies
16
Views
3K
Graduate Circular Orbit Four-Velocity and Schwarzschild Metric
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What Happens to Matter Inside a Black Hole's Infinite Density?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Super-radiance of electromagnetic waves
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Schwarzchild Radius: By definition must be dependent on distance.
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Synchronous Coordinates transformation
  • · Replies 13 ·
Replies
13
Views
3K
Graduate Bell's Spaceship Paradox and Length Contraction
  • · Replies 137 ·
5
Replies
137
Views
20K
Graduate Determine Motion of Two Planes in Deep Space
  • · Replies 4 ·
Replies
4
Views
1K
Graduate When a black hole is formed officially?
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Distinguishing spacelike and timelike events
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Why Does Integrating Relativistic Kinetic Energy Lead to Different Results?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Radius of a photon's circular orbit around a mass
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Understanding Relativity: Chat with a Physics Professor Online for Clarity
  • · Replies 68 ·
3
Replies
68
Views
8K
Graduate Symmetrically Opposite Solution to Special Relativity
  • · Replies 11 ·
Replies
11
Views
2K
Where can I find english version of Ann. Soc. scient bruxelles A47, 49(1927)
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Is the Sun invisible at relativistic speeds?
  • · Replies 93 ·
4
Replies
93
Views
12K
Graduate Relativity with Charged Particles & Fluid Approx.
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Error in Carroll's Lecture Notes on General Relativity pg. 186
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Photon Arrival Rate: Doppler Effect Explained
  • · Replies 37 ·
2
Replies
37
Views
9K
Undergrad Analysis of Doppler Effect - Seeking Validation/Criticism
  • · Replies 25 ·
Replies
25
Views
4K
Graduate Are there simultaneous moments?
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Canonical Momenta Action Electromagnetism
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Kruzkal Coordinates Inside Horizon: Defining u', v
  • · Replies 5 ·
Replies
5
Views
1K
Graduate Questions concerning GPS Navigation
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Does time effect slowed light or not?
  • · Replies 12 ·
Replies
12
Views
2K
Graduate Laws of Physics: Same Everywhere?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Time dilation in gravitational field
  • · Replies 24 ·
Replies
24
Views
4K
Can Closed Timelike Curves Make Time Travel Possible?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Does Length Contraction Occur in All Directions for a Speeding Object?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate General matrix representation of lorentz boost
  • · Replies 2 ·
Replies
2
Views
8K
Graduate Two ships again [lets beat that dead horse]
  • · Replies 29 ·
Replies
29
Views
5K
Undergrad Understanding Length Contraction in Relativity: Explained and Analyzed
  • · Replies 17 ·
Replies
17
Views
4K
Graduate Equation of state of photon gas
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Ladder Paradox: Understanding the Contradictory Length Contraction Phenomenon
  • · Replies 24 ·
Replies
24
Views
6K
Graduate Faster than speed of light = time travel ?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Michaelson-Morley expt. problem
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Do the Large Hadron Collider take earth's rotational speed?
  • · Replies 38 ·
2
Replies
38
Views
6K
Graduate Center of Mass: Definition, 3D Calculation & Frame
  • · Replies 2 ·
Replies
2
Views
2K
High School The Speed of Light: Explaining Theory & Experiments
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Calculating Relativity with Different Speeds: Vacuum or Medium?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Is Widely Separated in Relativity About Space or Perception?
  • · Replies 19 ·
Replies
19
Views
3K
Graduate How is the effective Lagrangian for the Graviton coupling to matter derived?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Magnetic field relativistic effect
  • · Replies 15 ·
Replies
15
Views
4K
High School Speed of photons and its effect on us
  • · Replies 10 ·
Replies
10
Views
2K
Graduate Spherical symmetric collapse of pressureless dust
  • · Replies 3 ·
Replies
3
Views
2K
Graduate The light-cone and light-cone variables
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Perceiving light/lighspeed (question)
  • · Replies 15 ·
Replies
15
Views
2K
Graduate Feynman's vs wiki's relativistic resultant
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Photons live in a singularity?
  • · Replies 11 ·
Replies
11
Views
5K
Graduate Proper time of a 'half-moving object'
  • · Replies 86 ·
3
Replies
86
Views
8K
Graduate Conservation of Relativistic energy and momentum
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Time dilation, reference frames
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Measuring Length with Oscillating Rods
  • · Replies 1 ·
Replies
1
Views
2K
Graduate If light-speed is invariant,why RoS exist?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Time Dilation Explained: T=T(P)*γ Example
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Can we really ever accurately test SR time dilation?
  • · Replies 123 ·
5
Replies
123
Views
12K
Graduate Confusion about Lorentz Transform
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Good books on both Relativities
  • · Replies 29 ·
Replies
29
Views
4K
Graduate Schwarzchild radial coordinate
  • · Replies 13 ·
Replies
13
Views
2K
Graduate EFE Solutions: Kerr, Mass, Energy, Metric Tensor
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Equivalence Principle: Questions Explained
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Is There a Connection Between Movement Through Space-time and Aging?
  • · Replies 50 ·
2
Replies
50
Views
14K
Graduate On Einstein´s theory of curved spacetime.
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Local flatness for non-freely falling observers?
  • · Replies 40 ·
2
Replies
40
Views
7K
Graduate Time Dilation Problem: Help Solve Light Beam Issue
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Time Dilation Equation: Clarifying Variables
  • · Replies 3 ·
Replies
3
Views
1K
Graduate Uncovering the Mystery of Hidden Momentum in E&M
  • · Replies 13 ·
Replies
13
Views
7K
Graduate Classic or General Relativity: Photon in Gravitational Field
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Time-dialation and light clock
  • · Replies 3 ·
Replies
3
Views
2K
High School Do we live in 3 or 4 dimensions?
  • · Replies 71 ·
3
Replies
71
Views
40K
Graduate What are the equations for a massless particle's worldline?
  • · Replies 15 ·
Replies
15
Views
3K
What do black holes look like?
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Confirm: Smooth Twin Paradox Intuition
  • · Replies 40 ·
2
Replies
40
Views
5K
Graduate Ehrenfest's Paradox: Resolving the Kinematical Solution
  • · Replies 36 ·
2
Replies
36
Views
8K
Graduate 3 questions regarding velocity and the speed of light
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Unraveling the Implications of Simultaneity in Special Relativity
  • · Replies 13 ·
Replies
13
Views
2K
Graduate Photon frequency in different inertial frames
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Interpret Relativistic Momentum: Facts & Popular Opinion
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Is gravity a force, or the curvature of space?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate What are closed time-like curves and how are they related to General Relativity?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Is Speed an Illusion in Physics?
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Is Time Slowing or Are Processes Slowing Near High Gravity and Speeds?
  • · Replies 137 ·
5
Replies
137
Views
19K
Undergrad Question Regarding Perception of Time
  • · Replies 11 ·
Replies
11
Views
3K
Graduate How do we know space and time are related?
  • · Replies 20 ·
Replies
20
Views
4K
Graduate Relative Velocity: Jack & Particle - v to V
  • · Replies 7 ·
Replies
7
Views
2K
High School Gravity at Earth's Center: Does Weightlessness Follow?
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Ricci tensor of the orthogonal space
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Can time be stopped in special relativity?
  • · Replies 13 ·
Replies
13
Views
3K
Graduate Definition of isometry in components form
  • · Replies 12 ·
Replies
12
Views
2K
Graduate Reference frames, reference particles, coordinate systems and all that
  • · Replies 18 ·
Replies
18
Views
4K
Graduate Photon Mass and Momentum: Train Experiment
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Gravitation in General Relativity.
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Einstein notion of time and the oscillation of the cesium atom
  • · Replies 99 ·
4
Replies
99
Views
12K