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 General Relativity: Components of ds^2
- Jonsson
- · Replies 2 ·
Undergrad Relativity, magnetic attraction, and comoving electrons....
- primefield
- · Replies 9 ·
Undergrad Gravity: Constant on Earth? | Is It Divisible?
- Benplace
- · Replies 10 ·
High School Where is all the places that QM and SR/GR disagree?
- member 620756
- · Replies 2 ·
Undergrad Embeddings of Gauge Group in Einstein-Yang-Mills Theory
- PhilipSS
- · Replies 1 ·
Undergrad Understanding ISSS from Minkowski Space to Poincaré Group
- AlephClo
- · Replies 7 ·
Undergrad Is Einstein's elevator different for gravity?
- csullens
- · Replies 42 ·
High School The Speed of Light and Time: A Constant Debate
- Simon Peach
- · Replies 12 ·
Graduate Understanding Orbital Angular Momentum Coupling to Christoffel Connection
- psi*psi
- · Replies 1 ·
High School What do I see while falling into a black hole?
- snoopies622
- · Replies 31 ·
Undergrad Relativistic Momentum: Deriving an Expression
- Kumar8434
- · Replies 25 ·
Undergrad Green's theorem in tensor (GR) notation
- davidge
- · Replies 19 ·
Undergrad Speed of Light Logic: Flaw Explained
- Silviu
- · Replies 5 ·
Undergrad Question about GPS clock synchronization
- Arkalius
- · Replies 22 ·
Undergrad Is there a physical explanation for the relationship between light and space?
- Buckethead
- · Replies 159 ·
Undergrad Solving Confusion About Parallelograms in Curved Spacetime
- Sonderval
- · Replies 2 ·
Undergrad Lorentz transformation in 2 dimensions
- jonjacson
- · Replies 5 ·
High School Which frame of reference is the correct one?
- AishaGirl
- · Replies 13 ·
Graduate Intro to String Theory: Lightcone Gauge & Oscillators
- binbagsss
- · Replies 1 ·
Undergrad Equations for observed distance/velocity in SR
- Arkalius
- · Replies 40 ·
High School Exercise for Students: Incorrect Special Relativity Analysis
- pervect
- · Replies 3 ·
High School How Does Speed Influence Time and Particle Decay in Einstein's Theory?
- menniandscience
- · Replies 91 ·
High School Special Relativity Q: Choosing Light as Ref
- Cathr
- · Replies 8 ·
Undergrad Number of independent components of the Riemann tensor
- Sonderval
- · Replies 6 ·
Undergrad Index Notation for Lorentz Transformation
- fayled
- · Replies 11 ·
High School The perfect relativistic quantum particles simulation
- Jeronimus
- · Replies 2 ·
High School Relativistic simultaneity and symmetry problem
- Chris Miller
- · Replies 52 ·
High School If anyone here doesn't yet get the twin "paradox". .
- m4r35n357
- · Replies 11 ·
Undergrad Gravitational time dilation calculation near a Black Hole
- Antonio
- · Replies 8 ·
Graduate Find EM Potential from EM Tensor | Math Solutions
- denijane
- · Replies 7 ·
Undergrad What is the most correct way to write a vector in GR?
- davidge
- · Replies 16 ·
Graduate Distance from Black Hole to experience Time Dilation
- eiyaz
- · Replies 14 ·
Undergrad Classical Newtonian Physics: Space & Time Independence
- Dimani4
- · Replies 4 ·
Undergrad Deriving Weak-Field Schwarzschild Metric from LEFEs
- Nikhil Hadap
- · Replies 2 ·
Undergrad Interactive Minkowski Diagram Tool
- Divy Jain
- · Replies 4 ·
High School Rotating Disks: Particle Movement & Spin
- Jeronimus
- · Replies 12 ·
Graduate Are Spacelike and Timelike Orthogonal: Mathematical Proof Explained
- koustav
- · Replies 12 ·
Undergrad How Does Time Dilation Affect Jill's Perception of Jack's Clocks?
- Dimani4
- · Replies 2 ·
Undergrad If Mass is relative, is "gravitational" mass relative?
- John Morrell
- · Replies 19 ·
Undergrad Can time be compressed without affecting distance?
- LordChallen
- · Replies 8 ·
High School Can Two Objects Exist in Each Other’s Past Simultaneously?
- EarthBound
- · Replies 1 ·
Undergrad Clock Synchronization: Jack & Jill's View
- Dimani4
- · Replies 18 ·
Undergrad Time dilation of a rotating disk
- JonnyHilbert
- · Replies 35 ·
Undergrad What Does Shankar Mean in Prof Shankar's Introduction to Relativity?
- abrogard
- · Replies 6 ·
High School Zeno's arrow paradox and general relativity?
- Andraz Cepic
- · Replies 21 ·
High School Magnitude of gravitational time dilation
- georgir
- · Replies 10 ·
Undergrad Understanding Schutz's Geodesic Deviation Eq. 6.84
- patrik1982
- · Replies 3 ·
Undergrad Gradient one-form: normal or tangent
- joneall
- · Replies 8 ·
Graduate Can time be considered a direct function of movement?
- dasmike1
- · Replies 37 ·
Undergrad Moving Clock: Lorentz Factor Calculation
- Dimani4
- · Replies 2 ·
Undergrad Relativistic doppler shift and radar
- Corvinus96
- · Replies 5 ·
Undergrad Why would we need faster than light travel?
- marksyncm
- · Replies 45 ·
High School Object A is moving relative to O , what does it mean?
- diazdaiz
- · Replies 3 ·
Undergrad Einstein's Train: Does Speed Exceed c?
- Chris Frisella
- · Replies 4 ·
High School How Planetary Bodies Affect Space Time
- BL4CKB0X97
- · Replies 4 ·
Undergrad Special relativity: frames of reference
- Dimani4
- · Replies 12 ·
High School Ideal demonstration of time dilation
- Andrew Wright
- · Replies 24 ·
Undergrad Radial Proper Dist. Objects Free Fall: Calculating Δs
- timmdeeg
- · Replies 7 ·
Graduate The formation of the event horizon.
- hexexpert
- · Replies 3 ·
Undergrad What is Einstein's equation used for?
- Ashley Warnes
- · Replies 7 ·
High School Charged Black Hole Hawking Radiation: Answers to Questions
- SlowThinker
- · Replies 2 ·
Undergrad Myths of Modern Popular Physics
- tzimie
- · Replies 13 ·
Undergrad Question about deriving E=mc^2
- JohnnyGui
- · Replies 22 ·
Undergrad Relativistic relative velocity
- davidge
- · Replies 19 ·
Undergrad Symmetry of Liénard-Wiechert Potentials
- particlezoo
- · Replies 1 ·
Graduate Time Dilation Test: No Deviation From Relativity Predictions Found
- Orodruin
- · Replies 1 ·
Undergrad Test the Speed of Light: Traveling Toward a Strobe Light
- AndyKeeble
- · Replies 6 ·
Graduate Four velocity with the Schwarzchild metric
- Pogags
- · Replies 2 ·
Undergrad Do most physicists believe time flows?
- eiyaz
- · Replies 1 ·
Undergrad Thought Experiment Contradiction: Find the Answer
- dylanreynolds1
- · Replies 3 ·
Graduate How these notions relate to the usual SR approach?
- leo.
- · Replies 18 ·
Undergrad Spinor Representation of Lorentz Transformations: Solving the Puzzle
- Frank Castle
- · Replies 6 ·
Undergrad Applications of Wedge-Product and Differential Forms
- davidge
- · Replies 10 ·
High School Relativity Scenario Help: A Seeing B's Line Shorter or Longer?
- MetinErsin
- · Replies 14 ·
Undergrad Could it be that the photon has a non-zero mass?
- sha1000
- · Replies 29 ·
Undergrad Relativity of simultaneity, time dilation misunderstanding
- sha1000
- · Replies 12 ·
Undergrad Path of Photon in Free Falling Lift: General Theory of Relativity Q&A
- CassiopeiaA
- · Replies 3 ·
High School Second Opinion Needed: Time of Light Pulse Arrival
- david316
- · Replies 81 ·
High School What is the Worldline of a Quantum Particle Before and After State Reduction?
- cube137
- · Replies 2 ·
Undergrad Constructing Vector in Another Basis
- davidge
- · Replies 6 ·
Graduate Gravity of a Light Pulse: Relation to E/c^2
- Simon Bridge
- · Replies 7 ·
Undergrad Calculating Gravitational Mass of Compressed Gas Cylinder
- Khashishi
- · Replies 8 ·
High School Math Help for Advanced Simulation of Twin Paradox
- Jeronimus
- · Replies 11 ·
Undergrad Energy contained in fuel in speed of light ship
- vansrv8
- · Replies 31 ·
Graduate How to Integrate the geodesic equations numerically?
- Matter_Matters
- · Replies 6 ·
Undergrad Particle accleration under gravitational waves?
- AAB1994
- · Replies 19 ·
High School An Interpretation of the Geometry of Space-Time Inside a BH
- dgm7691
- · Replies 7 ·
Undergrad Query on basic mechanics of Special Theory of Relativity
- Pebble
- · Replies 11 ·
Undergrad Velocity Addition & Relativity of Simultaneity
- IsakVern
- · Replies 3 ·
Graduate Show Spherical Symmetry of Schwarzschild Metric
- mjordan2nd
- · Replies 3 ·
High School How Can Time Derivatives Be Taken in GR and SR with Orthogonal Basis Vectors?
- davidge
- · Replies 29 ·
High School DeltaT of clocks at endpoints of a rocket post acceleration
- Jeronimus
- · Replies 24 ·
High School Visualizing GR Geometry: Software for Einstein Field Equations
- mieral
- · Replies 3 ·
Undergrad "General Relativity" by Wald -- question
- Felix Quintana
- · Replies 7 ·
Undergrad Help with infinitesimal transformation to finite transform
- TimeRip496
- · Replies 23 ·
Undergrad Force applied by a moving object
- Ibix
- · Replies 7 ·
High School Why should spacetime/manifold be smooth?
- mieral
- · Replies 23 ·
Undergrad Gravity: Contraction of Space?
- mpolo
- · Replies 2 ·
High School Spacetime same size during Big Bang up to now?
- mieral
- · Replies 3 ·
High School Another question about relativity: the force
- physics user1
- · Replies 15 ·