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 [Question] About the radio signal for Twin Paradox
- cxcxcx0505
- · Replies 3 ·
Graduate Can the concept of negative mass shed light on the independence of momentum?
- VernonNemitz
- · Replies 12 ·
Undergrad SR Problem: Calculating Angle of Tilt of Moving Bar
- PeroK
- · Replies 6 ·
Graduate Simultaneity between events in reference frames
- PeroK
- · Replies 2 ·
Graduate Understanding the Effect of Space Curvature on Time in Relativity
- GordonFreechme
- · Replies 15 ·
Can anybody suggest any books, journals, or webs on antigravity?
- aemla
- · Replies 15 ·
Undergrad Changing magnetic field creates potential difference
- Strafespar
- · Replies 1 ·
Graduate What caused us to have relative time
- spaced-out
- · Replies 62 ·
Graduate CTCs in Kerr Metric: Examining the Invariance of CTCs in Spacetime
- yuiop
- · Replies 6 ·
Graduate Mechanism by which mass curves space
- taicleis
- · Replies 9 ·
Graduate Concept of coordinate reference frame in GR
- EventHorizon91
- · Replies 7 ·
Graduate Could a warp drive work as a time machine?
- KeplerJunior
- · Replies 51 ·
Graduate Gravitons: Explaining Need & Function in Relation to GR
- copernicus1
- · Replies 4 ·
Graduate Locally non-rotating observers
- WannabeNewton
- · Replies 178 ·
Graduate Negative time difference of simultaneous events?
- chipotleaway
- · Replies 12 ·
Graduate Time Travelling at Speed of Light: What is My Time?
- Madhu R
- · Replies 5 ·
Graduate Understanding Time Dilation: Proper Time vs. Time
- zachfoltz
- · Replies 5 ·
Graduate Magnetism as a Relativistic Phenomenon
- unscientific
- · Replies 1 ·
Undergrad Newton's law of gravity or Einstein's general theory of relativity?
- Remon
- · Replies 29 ·
High School Einstein and his theory of light speed
- kimster
- · Replies 6 ·
Graduate Why Does a Bullet Fall Below a Laser Beam in General Relativity?
- noobphysicist
- · Replies 6 ·
Graduate Light & Space-Time: Why So Fast?
- Akaisora
- · Replies 18 ·
Graduate Constant Acceleration / Deceleration Propulsion
- rajko
- · Replies 7 ·
Graduate What does vanishing Ricci tensor signify ?
- Genocide
- · Replies 1 ·
Graduate Could There be a Preferred Time in the Universe?
- kye
- · Replies 1 ·
Graduate Unbreakable pole moved in an infinite vacuum
- Gargoyle
- · Replies 1 ·
High School Does Gravity Affect How Long You Live?
- pingulii
- · Replies 1 ·
Graduate Einstein's Basis for Equivalence in his Field Equations
- McGuire
- · Replies 3 ·
Graduate Question regarding the qualitative difference between General Relativi
- Herbascious J
- · Replies 4 ·
Undergrad Moving faster than light cannot stop biological aging Or can?
- pingulii
- · Replies 20 ·
Graduate How Do You Calculate Average Acceleration in Relativistic Motion?
- pixelpuffin
- · Replies 8 ·
Graduate Can you see inside a space ship moving at the speed of light?
- adimantium
- · Replies 5 ·
Graduate Does time go backwards if object is going faster than light?
- adimantium
- · Replies 3 ·
Graduate What causes people to age differently?
- spaced-out
- · Replies 36 ·
Undergrad How to understand gravitational potential
- nenyan
- · Replies 14 ·
Graduate Proof of CTCs: Post Selection & Entanglement
- zepp0814
- · Replies 4 ·
Graduate Velocity addition formula question
- MrBillyShears
- · Replies 7 ·
Undergrad Meaning of E=mc^2: Are Mass and Energy the Same?
- jacket
- · Replies 5 ·
Graduate Einstein's Summation Convention: Questions Answered
- nenyan
- · Replies 2 ·
Graduate Conceptual questions: Limit of energy?
- tolove
- · Replies 8 ·
Graduate Twin's Paradox: Q&A on Acceleration, Velocity & Time Dilation
- wildsman
- · Replies 20 ·
Graduate Four amateur questions about gravity and general relativity
- NotEuler
- · Replies 22 ·
Graduate Two paralel streams of electrons.
- alpha358
- · Replies 4 ·
Graduate Is There any impact of the concept of Einstein’s New Ether in science
- Trojan666ru
- · Replies 1 ·
Graduate Rotating reference frames and acceleration
- Hailcanadien
- · Replies 14 ·
Undergrad How Does the Twin Paradox Affect Aging in Space Travel?
- Hepic
- · Replies 2 ·
Graduate A Lot of Basic Question About Lorentz-Minkowski Geometry
- nomather1471
- · Replies 4 ·
Graduate Solving Redshift of Two Kinds in Schwarzschild Metric
- WannabeNewton
- · Replies 12 ·
Graduate What Are 'M-M' and 'N-N' Circles in Russian Physics?
- nomadreid
- · Replies 2 ·
Graduate Charged particle、neutral particle will hit the ground simultaneously？
- magnetar
- · Replies 2 ·
Graduate Magnitude of Vectors in Special Relativity
- MrBillyShears
- · Replies 5 ·
Graduate Orthogonality of timelike and null vector
- nomather1471
- · Replies 7 ·
Graduate Momentum conservation in the twin paradox
- adrian_m
- · Replies 13 ·
Graduate Movement of Mass: Constant Distortion Since Universe Began
- wetwonder
- · Replies 6 ·
Graduate Frequency, Velocity and Wavelength of Light
- Nugso
- · Replies 13 ·
Graduate Using parallel propagator to derive Riemann tensor in Sean Carroll's
- victorvmotti
- · Replies 3 ·
Graduate Schwarzschild metric in terms of refractive index
- yuiop
- · Replies 5 ·
Figured Out: No Question Here!
- TysonM8
- · Replies 1 ·
Graduate Forces in relativistic rolling motion
- jartsa
- · Replies 66 ·
Graduate Quick check as to space-like and time-like
- nomadreid
- · Replies 3 ·
Undergrad Relative velocities and the speed of light
- ViolentCorpse
- · Replies 15 ·
Graduate Electron orbital the earth will radiate?
- magnetar
- · Replies 5 ·
Graduate Types of experiments conducted to detect the speed of light After M&M
- Trojan666ru
- · Replies 14 ·
Undergrad Schwarzschild Radius Explanation?
- seanlee2013
- · Replies 47 ·
Graduate Changing Dot Product to Simple Multiplication
- Halaaku
- · Replies 3 ·
Graduate What Causes Length Contraction in Relativistic Speeds?
- keepit
- · Replies 6 ·
Graduate Coordinate and dual basis vectors and metric tensor
- Halaaku
- · Replies 9 ·
Graduate Asymmetric photon interaction with gravity?
- bahamagreen
- · Replies 12 ·
Graduate Doppler effect in accelerating frame.
- Ravi Mohan
- · Replies 21 ·
Undergrad Speed of Light vs Speed of Pool Ball Momentum
- donniet1977
- · Replies 14 ·
Graduate How Does Time Dilation Affect Photon Transmission in Relative Motion?
- greendog77
- · Replies 1 ·
Graduate Thought experiment with one photon
- keepit
- · Replies 7 ·
Graduate Are There Limitations to the Proven Accuracy of GR and SR?
- keepit
- · Replies 1 ·
Graduate Two Laser Emissions: Resolving Contradiction
- Whatifitaint
- · Replies 4 ·
Graduate Space-Time Warping Imaging at 1T fps - Ramesh Raskar
- dsmikk
- · Replies 3 ·
Graduate Is light slowed down when passing through a tube that exerts gravity?
- bcrelling
- · Replies 18 ·
Graduate Black holes and time invariance.
- bcrelling
- · Replies 11 ·
Graduate If there was a region of space-time shaped like a Mobius Strip
- Edward Solomo
- · Replies 1 ·
Graduate Curvature of space and spacetime
- qtm912
- · Replies 5 ·
Graduate How Critical Are Relativistic Effects in GNSS Accuracy?
- thegreenlaser
- · Replies 8 ·
Graduate Why does the frequency of a light clock change when it is accelerated?
- yuiop
- · Replies 53 ·
Graduate Time Machines Create Wormholes? | EFE
- Superposed_Cat
- · Replies 1 ·
Undergrad Question about terminology: ch = cosh?
- nomadreid
- · Replies 4 ·
Graduate Ladder Paradox/General Relativity?
- TysonM8
- · Replies 3 ·
Graduate Timelike and Spacelike Four-vectors
- Lucy Yeats
- · Replies 15 ·
Graduate Observing a cube approaching a black hole
- EskWIRED
- · Replies 12 ·
Graduate How do we parallel transport a vector?
- pellman
- · Replies 3 ·
Graduate Simultaneity at Speed of Light: Twin Paradox Explained
- Guybrush
- · Replies 4 ·
Graduate Is acceleration due to gravity a 4-vector?
- pellman
- · Replies 5 ·
Graduate Lienard-Wiechert potentials
- nosepot
- · Replies 5 ·
Graduate How Do Black Holes Exert Gravitational Influence Beyond Their Event Horizon?
- McKinley
- · Replies 1 ·
Graduate Observers in circular orbit-Schwarzschild space-time
- WannabeNewton
- · Replies 20 ·
Undergrad Mechanics: Change of Reference Explained
- adnane.Physics
- · Replies 1 ·
Graduate Is the space-like distance to a black holes event horizon infinite?
- mrspeedybob
- · Replies 5 ·
Graduate Locally Maximally Symmetric Spacetimes
- HomerSimpson
- · Replies 3 ·
Graduate Relativistic transverse doppler shift
- fulis
- · Replies 12 ·
Graduate Black Hole and Electric Charge
- Philosophaie
- · Replies 8 ·
Graduate Understanding the Backward Movement of Light in Earth's Reference Frame
- aleemudasir
- · Replies 8 ·
Graduate Light Entering Black Hole: Hawking Radiation Explained
- Superposed_Cat
- · Replies 2 ·
Graduate Explanation of EM-fields using SR
- A.T.
- · Replies 134 ·