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.
Threads
Graduate Deriving E=mc² step by step
- prasannapakkiam
- · Replies 9 ·
Graduate Particles collisions at speeds greater than c :surprised
- rfwebster
- · Replies 7 ·
Graduate Does the Rest Mass of Photon Gas Change with Unidirectional Motion?
- bernhard.rothenstein
- · Replies 27 ·
Graduate About the so-call two errors (mistakes) in Misner-Thorne-Wheeler
- dickeywang
- · Replies 1 ·
Graduate Deriving the constraint algebra in canonical quantum gravity
- shoehorn
- · Replies 1 ·
Graduate Stress-energy tensor and pressure
- jostpuur
- · Replies 3 ·
Graduate How did Maxwell build his theory
- lalbatros
- · Replies 4 ·
Graduate Was Einstein Wrong About Relativity of Simultaneity?
- longshinewoole
- · Replies 40 ·
Graduate Roy Kerr's 2007 eprint on black hole interiors and singularities
- Chris Hillman
- · Replies 2 ·
High School Simple Explanation of Relativity - Learn What Relativity Is
- Cookie_1993
- · Replies 10 ·
Graduate I am attempting a condition where Newton and Einstein agree
- duordi
- · Replies 10 ·
Graduate Can a disc with Earth's surface area accelerate forever at constant proper acceleration?
- Gulliver
- · Replies 8 ·
Graduate Invariant and covariant in special relativity
- bernhard.rothenstein
- · Replies 9 ·
Graduate Is Faster-Than-Light Travel Truly Impossible?
- LurkingEyes
- · Replies 10 ·
Graduate Aging related to speed of the Earth
- jiufer
- · Replies 3 ·
Graduate Is Space-Time Curvature Zero Inside a Spherical Cavity at Earth's Center?
- lightarrow
- · Replies 30 ·
Graduate Why is the speed of light the ultimate speed limit?
- prasannapakkiam
- · Replies 5 ·
Graduate Black holes and entropy: energy with respect to infinity
- cesiumfrog
- · Replies 1 ·
Graduate Gr-qc/921001 - the constraint algebra of general relativity
- shoehorn
- · Replies 3 ·
Graduate Do light and gravity take identical geodesics?
- duordi
- · Replies 23 ·
Undergrad Why c=1 in relativistic equations
- bernhard.rothenstein
- · Replies 8 ·
Graduate Lorentz group, Poincaré group and conformal group
- lalbatros
- · Replies 12 ·
High School Time dilation in plain english
- phyti
- · Replies 8 ·
Graduate Gravitational Effects on a 1 Mile Length of Rope
- wolram
- · Replies 7 ·
Graduate Mass of a system of two photons
- bernhard.rothenstein
- · Replies 52 ·
Graduate Do two receding planets receive each other's photons simultaneously?
- gonegahgah
- · Replies 18 ·
Undergrad Speed of light in Newtonian geometry for light deflection by the sun
- RoccoV
- · Replies 29 ·
Graduate How much do NASA orbital calculations use general relativity?
- blumfeld0
- · Replies 8 ·
Graduate Is Time a Measure of Length in a Single Point?
- petm1
- · Replies 13 ·
Graduate Electron beams and an inertial frame problem
- Hamish
- · Replies 10 ·
Graduate Where do relativity and quantum mechanics disagree?
- apope
- · Replies 8 ·
Graduate I have devised away to travel Faster Than Light
- icr_03
- · Replies 1 ·
Graduate Experimental evidence for relativistic mass increase
- peyo
- · Replies 9 ·
Undergrad How Does a Black Hole Attract Light?
- Manu Vincent
- · Replies 10 ·
Graduate Physical Intuition for Length Contraction
- Phymath
- · Replies 8 ·
Graduate Schwarzchild solution with cosmological constant
- Terilien
- · Replies 3 ·
Undergrad Can space-time curvature be applied to artificial satellites.
- udaykumar
- · Replies 21 ·
Graduate What do they do in numerical GR ?
- smallphi
- · Replies 16 ·
Graduate Trying to wrap my pea sized brain around the universe.
- Frozenoak
- · Replies 4 ·
Graduate Energy-mom tensor does not determine curvature tensor uniquely ?
- smallphi
- · Replies 10 ·
Undergrad Questions about General Relativity (GR) - Andrew
- Areid45
- · Replies 4 ·
Graduate Solving Basic SR Confusion for Twin Paradox
- cscott
- · Replies 70 ·
Graduate Why is the speed of light constant in special relativity?
- SpazAttack
- · Replies 14 ·
Undergrad Questions about motion equations
- JustinTime
- · Replies 2 ·
Undergrad General Relativity for Dummies
- Alabran
- · Replies 42 ·
Graduate Why is the curvature around a star asymmetrical in the theory of relativity?
- udaykumar
- · Replies 9 ·
Graduate From the scalar of curvature (Newman-Penrose formalism) to the Ricci scalar
- cosmicstring1
- · Replies 8 ·
Graduate Fundamental identity of SR valid in GR?
- birulami
- · Replies 16 ·
Graduate Time dilation without acceleration
- Point Conception
- · Replies 5 ·
Graduate Complex four vector algebra in relativity
- MeJennifer
- · Replies 9 ·
Graduate Smolin's in depth perspective on Einstein, man and mind (NYRB)
- marcus
- · Replies 1 ·
Graduate Light clock with mirrors parallel to ship direction at 0.99c
- Taremos
- · Replies 11 ·
Undergrad What do you see on a clock moving at light speed away from you?
- say_physics04
- · Replies 10 ·
Graduate Does Einstein's General Relativity need to be adjusted for the Higgs field?
- bananan
- · Replies 7 ·
Undergrad How Can Photons Have Momentum If They Have No Mass?
- 3dsmax
- · Replies 4 ·
Undergrad Why does a clock on an airplane run slow compared to one on the ground?
- morgan?
- · Replies 5 ·
Graduate Maximizing survival time falling into a black hole
- quantum123
- · Replies 45 ·
Graduate Why are space-time intervals equivalent for observers in relative motion?
- Fletcher
- · Replies 10 ·
Graduate Is the calphysics.org gravity article legitimate?
- blumfeld0
- · Replies 7 ·
High School Is Time Travel Physically Possible According to Einstein's Theories?
- Dr.Calpol3
- · Replies 12 ·
Graduate Can a rigid nucleus transmit motion faster than light?
- pgcurt
- · Replies 4 ·
Graduate Why does the metric signature have to be timelike and spacelike?
- blumfeld0
- · Replies 1 ·
Graduate Effects of Accelerating Point Mass on Orbital Dynamics
- MeJennifer
- · Replies 8 ·
Graduate What is a Cauchy surface and its significance in spacetime?
- Ratzinger
- · Replies 2 ·
Graduate Can we move through time like we move through space?
- JPC
- · Replies 10 ·
Graduate General Relativity: Comparing Newtonian and Einstein Circular Orbits
- charybdis
- · Replies 7 ·
Graduate Speed of light in the universe, experimental data
- lalbatros
- · Replies 19 ·
Graduate About interpretations and logic
- enridp
- · Replies 20 ·
Graduate Does the Sun Create Different Geodesics for Each Planet?
- Milind_shyani
- · Replies 18 ·
Graduate Light, Elevators, and Gravity: A Confusing Experiment or Just Me?
- gonegahgah
- · Replies 11 ·
Graduate Does a black hole have a stress-energy tensor?
- touqra
- · Replies 17 ·
Graduate How Does Newton's Second Law Adapt to Relativistic Speeds?
- hover
- · Replies 19 ·
Graduate Non-relativistic derivation of Schwarzschild's equation
- allison johnson
- · Replies 8 ·
Undergrad Does Light Exert a Force on Lasers?
- bassplayer142
- · Replies 6 ·
Undergrad Is the speed of light really constant?
- Goliatbagge
- · Replies 7 ·
Undergrad Time as a function of distance for constant a
- DaveC426913
- · Replies 18 ·
Graduate Calculating distance between two points in potential
- JimLad
- · Replies 3 ·
Graduate Particle production in curved spacetime
- smallphi
- · Replies 13 ·
Graduate Why doesn't length contraction create an electric force in the negative charges' frame?
- Ja4Coltrane
- · Replies 1 ·
Graduate Do moving observers measure different electromagnetic forces on stationary charges?
- henry_arsenal
- · Replies 3 ·
Graduate Question on advance of perihelion.
- Ian
- · Replies 9 ·
Graduate What is the difference between static and stationary spacetime metrics?
- blumfeld0
- · Replies 11 ·
Physics Articles - Abstracts for SR and GR Papers
- pmb_phy
- · Replies 12 ·
Graduate Parametric equations for geodesics
- andybham
- · Replies 4 ·
Undergrad Atomic clock time dilation at specific speeds
- spaghed87
- · Replies 52 ·
Graduate Why is phi multiplied by 2 in the weak field metric?
- Terilien
- · Replies 18 ·
Undergrad Does B's odometer show 2πr after circumnavigating A at constant distance?
- MeJennifer
- · Replies 5 ·
Graduate Electric Current in Special Relativity
- jimmd
- · Replies 4 ·
Graduate SR forbides BHs and GR demands them
- Johnny R
- · Replies 1 ·
Graduate Point Masses and the Speed of Light: An Exploration of Relativity
- mr200backstrok
- · Replies 2 ·
Graduate Professionally researched relativistic orbits
- jgraber
- · Replies 3 ·
Graduate Hi, can't find the way to debunk this
- polystethylene
- · Replies 23 ·
Graduate Geodesics between two points ?
- smallphi
- · Replies 11 ·
Undergrad Films about relativity and modern physics
- tareqsalahedin
- · Replies 3 ·
Graduate How Does Snell's Law Change in Curved Spacetime?
- blumfeld0
- · Replies 1 ·
Graduate Why is the stress-energy tensor defined the way it is?
- Terilien
- · Replies 8 ·
Graduate Connection of General relativity and geometric Refraction of light
- exponent137
- · Replies 1 ·
Graduate Is Jefimenko's Approach to Relativity Based on Retarded Potentials Valid?
- Marc Millis
- · Replies 1 ·
Graduate Does vacuum energy in general relativity make sense?
- MeJennifer
- · Replies 4 ·