Special and General Relativity Forum

Graduate Twin Paradox - Acceleration vs Velocity

Graduate What are the key postulates for developing Einstein's relativity theory?

Graduate Is Time Perception Different for Travelers at Light Speed Compared to Earth?

Graduate Gravity from spacetime curvature

Graduate Does a stationary charge in a gravitational field emit radiation?

Graduate Would the twin paradox exist without fixed stars or galaxies?

Graduate Verlinde Gravity: Constructing Gravity From the Ground Up

Graduate Does a Black Hole Represent a State of Absolute Rest in the Universe?

Graduate Does Hawking deserve a Nobel prize for his singularity theorem?

Graduate How does the holographic principle relate to the reference frame of a photon?

Graduate Can matter be completely converted to energy as suggested by E=mc2?

Graduate Can Energy Be Considered a Dimension in Superstring Theory?

Graduate What does frame-jumping mean in relativity discussions?

Graduate What does the four-acceleration vector mean physically?

Graduate Visualizing Curved Space-Time in 2D

Graduate Can Humanity Achieve Superluminal Travel in 30 Years?

Graduate Is the range of EM forc affected by Black Hole Gravity

Graduate Commutativity of Tensor Field Multiplication

Graduate A.G. Kelly and his criticism of relativity

Graduate Time dilation for clock thrown up and caught back

Graduate Relativity and collapsing stars

Graduate Length contraction and interstellar travel

Graduate I don't understand the light deflection calculus

Graduate Is the Fitz-Gerald contraction directly observable in practice?

Graduate Do we have momentum through time and does gravity affect it?

Graduate Killing vectors in Robertson-Walker mertric

Graduate Why Kruskal-Szekeres coordinates are superior to Eddington-Finkelstein and Lemaître-Rylov

Graduate Do tidal forces deform event horizons of nearby black holes?

Graduate How Does Mass Affect Light's Path in the Space Plane Theory?

Graduate Proving x^2-c^2*t^2 invariance

Graduate Is special relativity sufficient to treat the twin paradox?

Graduate Introduction to General Relativity

Graduate Infinitely (Relatively) Smaller Black Holes

Graduate What is the Interpretation of Length Contraction in Special Relativity?

Graduate Who experiences the greatest time dilation in special relativity?

Undergrad How Quickly Does Pluto Respond to Changes in the Sun's Gravity?

Graduate What is the explanation for Death by Lorentz Contraction?

Graduate Calculating Proper Time for an Object Under Constant Acceleration

Undergrad Teleportation (like a StarGate) and Time travel

Graduate Minkowski Diagram: Clarifying One-Dimensional Question

Graduate Does time stopping at c explain spooky action at a distance?

Graduate What New Ideas Are Emerging in the Exploration of Space-Time?

Graduate Does Mach's principle explain the force we feel when accelerating?

Graduate Relation between total energy and rest mass

Graduate Why vacuum Einstein equations are hyperbolic equations?

Graduate How Does Intrinsic Derivative Differ from Covariant Derivative in Geometry?

Graduate Dark energy and mass-energy conservation

Graduate Self-torque of a compressed rod?

Graduate How many numbers to describe a point in space in GR?

Undergrad Does time pass slower when traveling at 17000 mph relative to Earth?

Graduate Does a charged particle in free fall radiate?

Graduate What is the physical explanation for boosts not commuting?

Graduate Question regarding de Broglie wavelength.

Graduate Why don't two sequential Lorentz transforms equal one combined transform?

Undergrad How does traveling at high speed physically age cells differently?

Graduate Light Passing through a Moving Medium

Graduate Hartle Gravity - Simple basis vector question

Graduate Galaxies travelling faster than the speed of light?

Graduate Relativity of spring constant

Graduate Reading off Christoffel symbols from geodesic equations in D'Inverno chapter 7

Graduate 4-velocity length under a force

Graduate Derivation of force-free particle equations in GR

Graduate Could gravity be repulsive at Planck length scales?

Graduate Equivalence Principle: Mass Increase With Time?

Graduate Relating gravity to time through black holes and Gravitational time dialation?

Graduate Equilibrium in Multiple Inertial Frames

Graduate What Are the Limitations of the No Hair Theorem in Black Hole Dynamics?

High School Would time stand still at center of earth?

Graduate Deriving Nonrelativistic Euler Equations from Stress Energy Tensor

Graduate Schwarzchild spacetime singularity

Graduate How Can We Understand the Possibility of Time Travel in Relativity?

Graduate Traveling at Lightspeed - Time Stops

Graduate Curving space at speed of light?

Graduate Difference between relatavistic kinetic energy and normal kinetic energy

Graduate Rocket ship speed and relativity

Graduate Ricci Tensor and Metric Restrictions

Graduate Is GPS the only practical application of General Relativity?

Graduate Basis vectors under a Lorentz transformation

Graduate Special theory theory oe relativity

Graduate Is Gravity Really an Entropic Force?

Graduate What is the Frequency of the Photon at the End of the Platform?

Graduate Introductory material - GR Hamiltonian Treatment

Graduate Accurate Results of General Theory of Relativity

Graduate Is the Pythagorean theorem derivation of gamma incorrect?

Undergrad Deriving Lorentz transformations from logical arguments

Graduate Is/are there any invariant OBJECTS in relativistic? Is there a substratum?

Graduate Can objects move faster than the speed of light in certain reference frames?

Undergrad Can You See Humans Glow on the Dark Side of Earth from a Fast Rocket?

Graduate Why does special relativity reject Galilean velocity addition for light?

Undergrad What is the Minimum Speed in Relativity?

Graduate Does the Relativity of Simultaneity Depend on the Axis Along Which Events Occur?

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Graduate Light Traveling in Opposite Directions

Graduate Linear size of everything doublles overnight

Graduate Can light be redshifted by gravitational fields?

Graduate Special Relativity - Transformations and Equivalence Principle

Graduate How to Determine Velocity in Special Relativity

Graduate Is four-momentum conservation an extra postulate beyond SR's two fundamental postulates?

Graduate The Physical Meaning of gravitational time dilation

Graduate Can Gravity Bend Time in the Opposite Direction?

Graduate Elaborating on stress-energy tensor