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
Undergrad Special relativity thought experiment
- tkmanutk
- · Replies 8 ·
High School Brian Greenes' Tornado Analogy
- teodorakis
- · Replies 13 ·
Undergrad Do gravitational waves transmit energy in all cases?
- rdai
- · Replies 12 ·
Undergrad Gravitational Waves: Time, Synchronization, Speed
- Karl Coryat
- · Replies 1 ·
Undergrad Relativity of simultaneity and quantum measurement outcomes
- Thanshin
- · Replies 6 ·
Undergrad Twin Paradox Resolution -- Inertial frames
- Charles Carter
- · Replies 46 ·
Undergrad Frame-Independent Set of Events?
- greswd
- · Replies 14 ·
Undergrad Do gravity waves affect subatomic equilibrium and photon clock directionality?
- sillycow
- · Replies 1 ·
Graduate How is time defined without a frame of reference?
- icantevenn
- · Replies 11 ·
Undergrad Does mass become infinite near the speed of light?
- avito009
- · Replies 60 ·
Graduate ALIGO interferometer sensitivity
- RockyMarciano
- · Replies 19 ·
Graduate Can Light Move Inside a Black Hole Event Horizon?
- Italian_Mike
- · Replies 3 ·
Graduate Are Gravitational Waves and Waves Transmitting Curvature Changes Different?
- rdai
- · Replies 2 ·
Graduate Understanding a0 in Paper: Page 9 of 1405.1283v1
- 69911e
- · Replies 1 ·
Undergrad Anthropic Lower Limit on Cosmological Constant
- bcrowell
- · Replies 0 ·
Graduate Spacetime Engineering by Superposition of GWs: Feasible in Theory?
- sanman
- · Replies 2 ·
Graduate Force based explanation of gravity waves still possible?
- cube137
- · Replies 18 ·
Graduate How did LIGO estimate the distance of the black holes?
- JK423
- · Replies 7 ·
Undergrad Shooting Video on Planet Z Near a Black Hole
- hypermental
- · Replies 4 ·
Graduate LIGO released GW150914 data with a signal processing tutorial
- websterling
- · Replies 4 ·
Who will win the 2016 Nobel Prize for gravitational waves?
- A/4
- · Replies 19 ·
Graduate Do photons of different wavelengths bend differently in a gravitational field?
- chimera27
- · Replies 5 ·
Undergrad Is Gravity Really the Weakest Fundamental Force?
- Saffat Rafsan
- · Replies 22 ·
High School What's the reference frame for the universe as a whole?
- jhus96
- · Replies 11 ·
Graduate Perihelion Shift in Near-Circular Orbits: 6πm/a + Higher Order Terms
- Jorrie
- · Replies 8 ·
Undergrad Travelling (at) the speed of light away from a lightsource
- lolcopters
- · Replies 6 ·
Graduate How is 1/√(1-u'²/c²) = γ(1-vu_x/c²)/√(1-u²/c²)?
- little neutrino
- · Replies 10 ·
Graduate Time dilation and acceleration due to gravity
- hypermental
- · Replies 21 ·
Graduate Is there a smallest possible gravitational wave?
- Cato
- · Replies 3 ·
Graduate A drunk falling into a black hole
- Adel Makram
- · Replies 18 ·
Graduate Simple derivation: sphere contracting under gravity
- HowardTheDuck
- · Replies 1 ·
Graduate Equivalence principle and mass
- fog37
- · Replies 9 ·
Graduate Calculate Parallel Transport: Get Out of Logical Loop
- snoopies622
- · Replies 2 ·
Graduate Do colinear free-falling objects have constant relative velocity in GR?
- davidfrankli32
- · Replies 11 ·
Graduate Unresolved background of gravitational waves?
- bcrowell
- · Replies 22 ·
Graduate What does the polarization of a photon signify in quantum field theory?
- carllacan
- · Replies 1 ·
Graduate Assumptions of the Schwarzschild solution to the EFE
- redtree
- · Replies 15 ·
Graduate What Happens to Mass When Black Holes Move?
- 1832vin
- · Replies 2 ·
Graduate Why does spacetime curvature influence itself in general relativity?
- Neutrinos02
- · Replies 5 ·
Graduate Can a gravitational wave kill you?
- Idunno
- · Replies 11 ·
Graduate Is light speed really constant?
- Erez Lerner
- · Replies 43 ·
Graduate Can a non-local manifold coexist with a spacetime manifold?
- cube137
- · Replies 3 ·
Graduate Detecting Interference Pattern Changes in LIGO Measurement
- pixel
- · Replies 16 ·
Graduate How does time dilation affect travel time to Kepler-452b at relativistic speeds?
- kvnsmnsn
- · Replies 12 ·
Graduate Gravitational redshift in GW150914 near merging black holes
- Leo.Ki
- · Replies 2 ·
Graduate Gravitational Waves: Were They Stronger Long Ago?
- Gerinski
- · Replies 2 ·
High School Relativity of Simultaneity - Missing Event
- Sisoeff
- · Replies 9 ·
High School How Does Relativity Deal with Simultaneity as a Requirement?
- Sisoeff
- · Replies 12 ·
Graduate Line element and derivation of lagrange equation
- Alain De Vos
- · Replies 13 ·
Graduate Dr Greg Blocking Question: Why?
- davidfrankli32
- · Replies 1 ·
Graduate Derivation of the Christoffel symbol
- Whitehole
- · Replies 1 ·
Graduate Recording gravity waves over the noise floor
- musichascolors
- · Replies 1 ·
Undergrad Relativity of Simultaneity and Time
- Banksyboy88
- · Replies 45 ·
Graduate Why was the LIGO Livingston signal weaker and delayed?
- Cuboctonion
- · Replies 6 ·
Graduate What is information in the context of black holes?
- bugatti79
- · Replies 2 ·
Graduate Magnetic Field due to a Point Charge
- Electric to be
- · Replies 6 ·
Graduate How to synchronize clocks in accelerating frame?
- Adel Makram
- · Replies 14 ·
Undergrad How does gravitational wave discovery support Einstein's spacetime curvature model?
- JerryF
- · Replies 4 ·
Graduate How is the zero point of energy defined in general relativity?
- maline
- · Replies 39 ·
Graduate Can sound wave speed be derived from gravitational wave energy?
- jerromyjon
- · Replies 18 ·
Graduate Newton potential transformation under divergence-free accelerations
- haushofer
- · Replies 21 ·
Graduate Gravitational Waves-Longitudinal or transverse
- binbagsss
- · Replies 1 ·
Undergrad Why is microgravity experienced on the ISS despite the presence of gravity?
- fog37
- · Replies 47 ·
Graduate Does gravity cause spacetime curvature or does curvature cause gravity?
- DWEdmondson
- · Replies 10 ·
Graduate Ricci tensor and scalar outside general relativity for intuition
- space-time
- · Replies 1 ·
High School Who really understands time dilation and relativity?
- dutchiexx
- · Replies 6 ·
Graduate Explicitly Deriving Spinor Representations from Lorentz Group
- JonnyMaddox
- · Replies 3 ·
High School Can light cones in relativity really be represented as hemispheres?
- Grimble
- · Replies 9 ·
Graduate How Does Relativistic Speed Affect the Force Exerted by a Train on Rails?
- jartsa
- · Replies 42 ·
Graduate Diagnosing an Equation in General Relativity
- Adam35
- · Replies 6 ·
Graduate Seizmic Activity & Quantum Gravity: LIGO Info & Plans
- exponent137
- · Replies 1 ·
Undergrad Increase Mass/Energy of Stationary Spacecraft?
- danndann1
- · Replies 14 ·
Graduate Change the FAQ? Also, how can 0-volume objects collide?
- okyl-dokyl-doo
- · Replies 19 ·
Graduate Why is 1/G Used in GR Lagrangian?
- nickyrtr
- · Replies 4 ·
Graduate Why is time asymmetrical compared to spatial dimensions?
- sanman
- · Replies 4 ·
Graduate Would a Alcubierre drive produce a gravity wave wake?
- newjerseyrunner
- · Replies 12 ·
Graduate Questions About Gravitational Waves
- Ontophobe
- · Replies 2 ·
Graduate What Causes Spacetime to Return to Uniformity?
- cosmonium
- · Replies 4 ·
Graduate Gravitational Waves and Frame-Dragging
- sanman
- · Replies 2 ·
Graduate How LIGO determined the source of detected gravitational waves
- gravity_devourer
- · Replies 13 ·
Graduate What are gravitational waves in general, not just in weak field theory?
- martinbn
- · Replies 2 ·
Graduate How long until a second gravitational wave detection confirms LIGO's first event?
- Gravitoastronomy
- · Replies 5 ·
Graduate Does relativistic mass affect kinetic energy, gravity and particle speeds?
- GTOM
- · Replies 7 ·
Graduate Does LIGO Ruling Out Linear Gravity Theories?
- Gravitoastronomy
- · Replies 4 ·
Graduate Can gravity waves extract mass from black holes and encode information?
- .Scott
- · Replies 5 ·
High School Gravity-Velocity: Clarifying the Confusion
- Einstein's Cat
- · Replies 1 ·
Undergrad Michelson-Morley Exp: Does this Paper Have Validity?
- Dillopotot
- · Replies 4 ·
Graduate How can distance be constant if time dilates for a traveling observer?
- merwyn
- · Replies 6 ·
Graduate Do the Conditions of the Big Bang and Light Speed Travel Share Similarities?
- Ananay Wadehra
- · Replies 4 ·
Graduate Transformation to locally flat coordinates
- Whitehole
- · Replies 20 ·
Graduate Is the Gravitational Twin Paradox Solved by Calculating Geodesic Paths?
- FallenApple
- · Replies 11 ·
Graduate Trying to understand length contraction
- Jmundi
- · Replies 13 ·
Graduate Gravitational waves speed in a medium
- Gerinski
- · Replies 2 ·
Undergrad Does length contraction result from bent space or from relativity of simultaneity?
- sawer
- · Replies 1 ·
Undergrad Gravity Wave Measurement: Measuring the Relative
- sidabao
- · Replies 4 ·
Graduate How did black holes merge in finite time?
- adrian_m
- · Replies 7 ·
Graduate What is the Source of 3 Sun M Energy Released in BH Merger?
- clinden
- · Replies 3 ·
Graduate How Do LIGO Photons Experience Shapiro Delay in Gravitational Waves?
- Leo.Ki
- · Replies 2 ·
Graduate Thought experiments about Gravitational Waves
- bubal
- · Replies 2 ·
Graduate Gravitational Waves research and Dark Matter
- Gerinski
- · Replies 5 ·