Special and General Relativity Forum

Graduate Calculating Angular Distance in SR

Graduate Does gravity warp spatial measurements as well as time?

Graduate What is required for photons to orbit an object?

Graduate Traveling from Point A to Point B at the Speed of Light

Graduate How does the theory of relativity explain changes in mass and energy?

Graduate Tensors for Relativity Without Tears

Graduate What approximations lead to Mercury's perihelion advance formula?

Graduate Calculating Homothetic Vector Fields

Graduate Analogue of Lorentz transformation in General Relativity.

Graduate Whom do we consider as moving in special theory of relativity?

Graduate A more interesting Pendulum Paradox

Graduate Possible Analogy for Objects Moving at C

Graduate Metric tensor conversion and geodesic acceleration in McMahon's Relativity

Undergrad How Can V Draw Space Time Curve

Graduate Space-Like Intervals: Can Events Effect Each Other?

Graduate What is the meaning of topological black holes?

Graduate Warped Space or Gravitons: Which Theory Explains Gravity Better?

Graduate Non-zero components of Riemann tensor for Schwarzschild metric

Graduate Is Space Infinitely Small and Large Without a Medium?

Undergrad Can Time Dilation from Special Relativity Unlock Superpowers?

Graduate Does a photon accelerate from zero velocity when emitted?

Graduate What properties of space determine gravity velocity?

Undergrad Time Dilation: Einstein's Theory of Time-Shift

Graduate Light speed in relation to the size of the universe

Graduate Can Photons Travel the Same Path at Different Speeds?

Graduate A weird spherically symmetric metric

Graduate Are negative clock readings compatible with special relativity?

Graduate Are Artificial Black Holes Created in the LHC Safe for Earth?

Graduate Why does gravity affect massless particles like photons?

Graduate Is there a gravitational equivalent to magnetism?

Graduate How Fast Does Gravity Travel to a Black Hole if the Sun Vanishes?

Undergrad Is motion relative to the size of an object

Graduate Little problem with group velocity

Graduate Questions about acceleration in SR

Graduate Does Traveling at Light Speed Eliminate the Dimension of Time?

Graduate 3 and 4 velocity and acceleration

Graduate In this scenario is faster then light speed possible?

Graduate Gravity: Thoughts on Earth's Center Point

Graduate Geodesics in metric geometry and affine

Graduate Coordinate transformation and choice of a suitable coordinate system.

Graduate Why Do Black Hole Models Assume Singularities as Facts?

Graduate Does acceleration cause time dilation?

Undergrad Is There a Flaw in the Michelson-Morley Experiment?

Graduate Absolute Zero and time travel?

Graduate On GR and Interstellar exploration

High School Does Taking a Step Forward Affect Age Difference in Time Dilation?

Undergrad Is the Velocity of Light Truly Constant Regardless of Your Motion?

Undergrad Why wouldn't Earth be elsewhere if we traveled back in time?

Undergrad Can Inert Gases Exhibit Electric Activity in Our Atmosphere?

Undergrad Do inertial and accelerating observers measure the same ship acceleration?

Graduate Does a moving clock really run slow or is time dilation an optical illusion?

Undergrad Why didn't the Michelson-Morley experiment detect Earth's motion?

Graduate Rest length in general relativity

Graduate Are Space and Time Inseparable Aspects of Our Universe?

Graduate On The Ether Concept In Physics

Graduate Relative Moving Charge: Electric vs Magnetic Field

Graduate How does light slow down in matter and what is the true vacuum speed?

Graduate The General Principle of Relativity

Graduate Does Traveling at Light Speed Freeze Time?

Graduate Could we say that velocity of light does not remain constant in time,

Undergrad Train A and B's Speed of Light Encounter: A Physics Question

Graduate Was Einstein's Pursuit of Unified Field Theory Fruitful in His Final Years?

Undergrad Velocity of light remain costant in a gravitational field?

Graduate Speed of light - with observer experiencing gravity

Graduate New relativity FAQ on relativistic mass

Graduate Gravity Red Shift: Can it Happen?

Graduate Group theory and Spacetime symmetries

Graduate Length of Meter Stick Near Event Horizon of Black Hole

Undergrad Why does c^2 change value when units are changed?

Undergrad Who coined the term relativistic mass

Graduate Curved space-time and dimensions

Graduate Pushing in the wrong direction

Graduate Worldline of photon in comoving coordinates.

Graduate Energy-momentum tensor for a scalar field (sign problem)

Graduate Wave Function in Lorent tranform

Graduate The very significant and positive result of the MM Exp

Graduate Time dilation and the pioneer spacecraft

Graduate If tachyons existes, does they obey the transfomation relations

Graduate Is There a Non-QED Derivation of E=pc?

Graduate Why Does the Ship's Twin Observe Earth's Clock Jump in the Twin Paradox?

Graduate How Does Relativistic Motion Affect Star Brightness?

Graduate Wouldn’t time dilation govern a speed limit?

Graduate Can you measure the charge of a black hole?

Graduate Temperature and special relativity

Graduate Proper time and Earth time for a relativistic rocket at 0.1 g

Graduate Is this tensor operation valid?

Graduate Can motion affect spectral signatures in a hydrogen-filled cube?

• Poll

Graduate Gravitons or Warped Space-Time?

Graduate Why not fewer visible stars in far away galaxies?

Graduate Special relativity treatment of gravity?

Graduate How much does Earth's time dilation decrease with distance from the surface?

Graduate Can objects 'fall faster than c' in a gravity field?

Graduate Why Are Physicists Interested in AdS Black Holes Over de Sitter Black Holes?

Graduate Accelerating universe = conservation of energy?

Graduate Question on Einstein's Simple derivation of Lorentz Transformation.

Graduate Acceleration or gravitational time dilation the same?

Graduate How Do We Measure Distance to Stars and Galaxies?

Undergrad Does gravity travel at the speed of light and how do black holes trap photons?

Graduate Absolute simultaneity with Einstein synchronized clocks?