Special and General Relativity Forum

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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 Gravity: Time Dilation or Death
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Graduate What Makes the Speed of Light Constant in Special Relativity?
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Graduate Is General Relativity Based on General Relativity or Equivalence?
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Undergrad From Kepler's law to gravitation force
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Graduate Understanding SR: A Travelling Observer & Photons
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Undergrad Time as Dimension: Before & After Einstein's G.T.R.
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Graduate Compact Sapcetime and Time Travel
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Graduate Are Time and Space Independent of Objects?
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Graduate Is Gravity Truly a 3D Phenomenon?
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Graduate How Do FRW Coordinates Transform SR Effects in Cosmology?
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Undergrad Gravitational Time Dilation - Confused
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Undergrad Sun Bending Light: Gravity Warps Space-Time?
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Graduate Verify special relativity by concept light clock
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Graduate Is speed of time c, atleast for someone travelling at speed of light?
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Graduate Can We Really Travel Back to Our Own Past?
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Graduate Lorentz Transformation & Hyperbolic Angle in (2+1) Dimensions
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Graduate The Twin Paradox and Absolute Reference Frames in General Relativity
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Graduate What Are the Paradoxes of Special Theory of Relativity?
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Graduate Kerr metric, singularities in Boyer-Lindquist and Cartesian coordinates
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Undergrad Why Do We Use Arbitrary Units for the Speed of Light?
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Graduate Principle of Relativity and Constancy of Light
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Graduate The Mystery: The Truth about Time Shifts in Wormholes
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Graduate A little paradox in relativity.
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Graduate Length contraction: a question about tramwheels
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High School Is the speed of light a velocity or acceleration?
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Graduate Why is faster than light travel so bizarrely 'addressed'
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Graduate Magnetic Relativity: Does a Force Act?
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Graduate Why Does the Twin Paradox Not Prove Einstein's Relativity Wrong?
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Graduate What exactly is meant when people say that a Light Cone is tilting ?
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Graduate What is the Relationship Between Proper Time and Coordinate Time in Black Holes?
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Graduate Is there time at the speed of light?
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Undergrad Gravitational Force between two bodies when Distance is zero
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Graduate The Relativity of Simultaneity
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Graduate Kretschmann Scalar: Flat Spacetime & Singularities
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Graduate What Are the Limitations of the Balloon Analogy in Cosmology?
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Graduate Twistors but I don't think his projection created a compacted space
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Graduate Electromagnetic General Relativity
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Time Travel Theory: What Are Your Thoughts?
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Graduate How Light Travels Across Space at Velocity C
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Graduate Can a wormhole cause time to slow down and age differently for travelers?
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Graduate General theory of relativity space without ether is unthinkable
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Graduate Understanding the Stress-Energy Tensor
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Graduate Constant velocity vs accelerating source
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Graduate Why isn't gravity the result of a variable speed of light?
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Graduate EPR Paradox and implications for QM
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High School A question about special relativity,
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Undergrad Gravity and Energy: Mass, Velocity, and More
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Graduate What is the definition of a metric tensor?
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Undergrad Why Does Length Contraction Happen?
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Undergrad How Is the Inner Radius of an Accretion Disc Determined?
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Undergrad Can the Twin Paradox Be Proven?
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Undergrad Why Can't There Be Gravity in 2 Spatial Dimensions?
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Undergrad Cosmological Constant: Significance & "God" Particle
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Graduate A dark part of special relativity(at least for me)
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Graduate Spatial curvature in Schwarzschild & FRW
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Graduate Effect before Cause:absolute horizon
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Graduate SRT two observers will agree on their relative velocity
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High School Physics Q: Time If Everything Stops Except Clock?
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Graduate Vectors and the Speed of Light?
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Graduate Understanding Relativity: Explaining Inertial Mass and the Speed of Light
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Graduate What Defines Unstable Versus Unbound Orbits Around Black Holes?
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Graduate How Does Space Motion Affect Light Measurement Observations?
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Graduate A different take on the Schwarzschild Metric
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Graduate How does time dilation really work?
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Graduate An idea on explaining the weak equivalence principle
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Graduate Breaking Light and Einstein-Rosen Bridges?
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Graduate Are there other Lorentz invariant bilinear combinations of E and B?
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High School Ages of A & B: Unbelievable Difference?
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Graduate Understanding Length Contraction and Time Dilation
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Graduate Help with a really nerdy calculation?
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Graduate Photon/particle's energy in General Relativity
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Graduate Faster than the speed of light with only a fishing line
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Graduate Role of Exclusion principle in formation of black holes.
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Graduate Reduced density matrices and Lorentz transformation
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Graduate What is a Rank 3 Tensor and Why Does It Matter?
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Undergrad The beautiful sight of the interstellar traveller
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Graduate Does the presence of B change the velocity of C with respect to A?
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Graduate Is Proper Time Invariance Proven?
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Graduate Can't get time dilation to add up
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Graduate Is the behavior of light that remarkable?
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Graduate What are some potential topics for a FAQ on the Twin Paradox?
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Graduate What is time? Is it an imaginary thing?
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Graduate Einstein field equations (EFE's)
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Graduate Theories of relativity and the resulting E = MC^2
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Graduate Neutron Stars and Special Relativity
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Undergrad Traveling at Near-Light Speed: Time Dilation and Your Perspective Explained
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Graduate The Photon's Perspective Taboo
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Graduate Send Particle Backwards in Time - Is this a hoax?
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Graduate Relativistic Mass and Energy Convservation
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Graduate Do Gravity Waves and Light Waves Follow the Same Paths in Space-Time?
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Undergrad How Can a Simple Laser Pointer Cause Destruction at Light Speed?
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High School Tracing the Passage of Time: Is It Possible?
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Graduate Most basic of thought experiments in special relativity
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Graduate Large Scale Structure of Spacetime Study Group
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Graduate Solving Tricky Pauli Matrices with Einstein Notation
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Graduate Is Time Variable When Light is Constant?
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Graduate How does light slow in the presence of gravity?
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Undergrad Superman and Time Travel: Is It Possible?
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Undergrad Confused in a thought-experiment
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Undergrad Why do we need to see gravitation as force?
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