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 Differential equation from derivative of time dilation
- bb1414
- · Replies 3 ·
High School Measuring the speed of light from moving source of light
- Rozman
- · Replies 5 ·
High School Speed of light circling around a black hole
- Rozman
- · Replies 9 ·
Undergrad Any database of results for the Michelson-Morley Experiment
- maajdl
- · Replies 1 ·
Undergrad What is the fastest time can go?
- James Minwell
- · Replies 21 ·
Undergrad Gravitational time dilation - acceleration vs potential
- Prometeus
- · Replies 9 ·
Undergrad Doppler Gravity: Does it Exist? Why or Why Not?
- .Scott
- · Replies 38 ·
Undergrad Is Time Travel Really Possible: Can We Move Backward in Time?
- LYCON
- · Replies 1 ·
Undergrad Einstein Proved Right 500M Light Years Away
- Tom.G
- · Replies 2 ·
Undergrad Deriving Einstein Equations: Questions on Linearity & Symmetry
- Decimal
- · Replies 2 ·
Undergrad Force Experienced on a Curved Geodesic Path
- rajeshmarndi
- · Replies 5 ·
Undergrad Understand Relativity w/o Math: A Different Framework
- kent davidge
- · Replies 11 ·
Undergrad Vectors & Frames Qs: Galilean & Lorentz Transforms
- Mathematicsresear
- · Replies 7 ·
Undergrad Real life example of the energy contained at E=γmc^2
- Foruer
- · Replies 64 ·
Undergrad How does the stress-energy tensor act on gravity?
- timmdeeg
- · Replies 26 ·
Undergrad Feedback Requested: Special Relativity Simplified by Phil
- Philip Dhingra
- · Replies 19 ·
High School Do photons interact with spacetime?
- platosuniverse
- · Replies 3 ·
High School What is the fabric of spacetime?
- DLeuPel
- · Replies 4 ·
High School Uncovering the Mysteries of Time: Understanding its Stretch and Rhythm
- DLeuPel
- · Replies 5 ·
Undergrad C Speed, Gravitational Time Dilation & 4-Velocity
- sawer
- · Replies 2 ·
Undergrad Indices Up & Down: Understanding Dual Vectors
- LagrangeEuler
- · Replies 13 ·
High School Which Particle is Moving? Physics Q&A
- yerty4235437y
- · Replies 28 ·
Undergrad Time Dilation: Does Gravitational Field Strength Matter?
- sawer
- · Replies 6 ·
High School Derivative of the Lorentz factor
- SiennaTheGr8
- · Replies 1 ·
High School Limitless Momentum of Black Holes
- Sveinbjoern
- · Replies 11 ·
Undergrad Doubt regarding derivation of Lorentz Transformations.
- Kaguro
- · Replies 3 ·
Undergrad Restrictions of 1st Order Perturbation Theory
- JuanC97
- · Replies 6 ·
Undergrad Learn Michelson Morley Exp: Best Books Explaining Light's C Speed
- AhmedHesham
- · Replies 5 ·
Undergrad Kruskal–Szekeres coordinates for Kerr metric
- Dale
- · Replies 3 ·
Graduate Pressure and Newtonian potential energy
- Jonathan Scott
- · Replies 37 ·
High School Einstein's Cosmological Constant: Push or Pull?
- Cycklops
- · Replies 2 ·
Undergrad Relativity of Time for Two Observers
- Rozman
- · Replies 30 ·
Undergrad Diffuse Reflection: Calculating Momentum Transfer
- pervect
- · Replies 9 ·
High School What the movie Interstellar got right and wrong?
- RandyD123
- · Replies 7 ·
Undergrad Metric for Single Photon: What's Best?
- Anwyl
- · Replies 5 ·
Undergrad Energy Radiated by Object Falling in Black Hole
- Riyan
- · Replies 23 ·
Undergrad Can someone fact check my speech about BH?
- avischiffman
- · Replies 19 ·
High School Are Geometries that contain Closed Timelike Curves Possible?
- TheQuestionGuy14
- · Replies 28 ·
High School Thought Experiment from my daughter regarding black holes
- Mark Scalabrin
- · Replies 4 ·
High School Can Causal Loops and Time Travel Coexist?
- TheQuestionGuy14
- · Replies 24 ·
High School Real-Life Demonstrations of Black Holes for Video
- avischiffman
- · Replies 4 ·
Undergrad Does gravity impact the speed of light?
- Erribert
- · Replies 27 ·
High School Closed Time-Like Curves: Principles & Observations
- Paul Colby
- · Replies 7 ·
Graduate Kottler-Moller coordinates, metric "covers" a region
- Gene Naden
- · Replies 2 ·
Undergrad Can someone explain this phenomena?
- arda
- · Replies 4 ·
Undergrad SR Time Dilation in Rigid Structure Clocks
- Malvia
- · Replies 51 ·
Undergrad Why is Hawking Radiation Unequal for Matter & Antimatter?
- Pouya Pourkarim
- · Replies 12 ·
Undergrad Consequences of light moving in a medium
- Kiley
- · Replies 6 ·
High School Frame Dragging: Q&A for Time Travelers
- TheDoctor6000
- · Replies 4 ·
Graduate How are curvature and field strength exactly the same?
- victorvmotti
- · Replies 3 ·
High School Layman's Question about Special Relativity
- Peter Mole
- · Replies 59 ·
Undergrad Confusion regarding acceleration in SR
- Kontilera
- · Replies 62 ·
High School Gravitational Redshift: Will Two Lasers Operate Differently?
- Torog
- · Replies 7 ·
Undergrad Killing vectors in isotropic space-times
- "Don't panic!"
- · Replies 12 ·
Undergrad Uncovering Invariance in SR: Why is $0 = (cdt)^{2}-dx^{2}$ Invariant?
- Higgsono
- · Replies 15 ·
Undergrad How Does General Relativity Explain Gravity's Conundrum?
- Mohammad Hunter
- · Replies 5 ·
Undergrad Understanding the Relationship Between Energy and Momentum in Special Relativity
- Phys12
- · Replies 11 ·
Undergrad Solving for the Missing Factor: Jumping into a Non-Rotating Black Hole
- cozycoz
- · Replies 3 ·
Undergrad How does gravitational time dilation work?
- unknown_9
- · Replies 21 ·
High School Effects of a moving mirror on a ray of light
- yrjosmiel
- · Replies 33 ·
Undergrad Can Light Transfer Momentum to Create Sound in Air?
- Sorcerer
- · Replies 10 ·
Insights Lessons From the Bizzaro Universe - Comments
- Chestermiller
- · Replies 23 ·
Undergrad Can the Christoffel connection be observed?
- Demystifier
- · Replies 52 ·
Undergrad What time structure supports info moving backward in time?
- NTHstars
- · Replies 6 ·
Undergrad What Is Frame Dragging and How Does It Affect Space?
- e2m2a
- · Replies 1 ·
High School How to find the dual basis vector for the following
- LSMOG
- · Replies 10 ·
Graduate How was the matrix in the attachment found
- LSMOG
- · Replies 6 ·
Undergrad Gravitational DE(?) from Schwartzschild spacetime
- cozycoz
- · Replies 2 ·
Undergrad Index placement on 4-potential
- dyn
- · Replies 5 ·
Graduate Why is vector made different here
- LSMOG
- · Replies 2 ·
Undergrad Is there a unit system with ##\hbar=G=c=\mu_0=1##?
- JuanC97
- · Replies 26 ·
Undergrad Relativity and speed of light basics
- starstruck_
- · Replies 59 ·
Graduate Radiation & Non-Radiation Terms in Equation B for Moving Charged Particle
- f16842000
- · Replies 1 ·
High School How Can We Detect Gravitational Waves from Black Holes?
- negative
- · Replies 3 ·
Graduate Hamiltonian Integral Transformation: Insight Needed
- Reverend Shabazz
- · Replies 8 ·
Graduate Gravity Field Theory in Flat Space Time: Best References
- andresB
- · Replies 4 ·
Graduate General relativity: time dilation and speed of light
- sha1000
- · Replies 10 ·
Undergrad Coordinate and proper time, null geodesic
- binbagsss
- · Replies 42 ·
High School Transformation of velocity exceeding light speed
- sweet springs
- · Replies 5 ·
High School Speed of Light & Virtual Particles: Is There a Connection?
- Malek
- · Replies 6 ·
Undergrad Lie Derivative in Relativity: Examples & Uses
- kent davidge
- · Replies 2 ·
Graduate Why doesn't an electron sitting on the Earth radiate?
- craigthone
- · Replies 44 ·
High School Why Are Numerical Examples Rare in Relativity and Quantum Mechanics?
- kent davidge
- · Replies 5 ·
High School What is the Definition of Improper Time in Special Relativity?
- FranzDiCoccio
- · Replies 8 ·
High School Is Absolute Movement Linked to Absolute Time in 3D Space?
- Ross Arden
- · Replies 13 ·
Undergrad Fizeau's Exp: TRANSFORMING VELOCITIES to Explain
- Felipe Prado
- · Replies 6 ·
Undergrad Calculating Killing vectors of Schwarzschild metric
- MathematicalPhysicist
- · Replies 2 ·
Undergrad Relativistic Velocity Transformation: Diff. Operator Explained
- Daniel5423
- · Replies 5 ·
Undergrad Does a blueshift change the energy of a photon?
- Nicholas Harris
- · Replies 22 ·
Undergrad Possible Warp Drive Physics: The Alcubierre Drive
- swampwiz
- · Replies 7 ·
Undergrad Relativistic addition question
- rajeshmarndi
- · Replies 31 ·
Graduate Solving Almheriri's Dilaton-Gravity Model in AdS##_2##
- Fgard
- · Replies 2 ·
Graduate Reference for Oppenheimer Snyder Collapse Paper
- gnnmartin
- · Replies 3 ·
Insights Rindler Motion in Special Relativity, Part 2: Rindler Coordinates - Comments
- stevendaryl
- · Replies 27 ·
Undergrad Nonlinear relation between coordinate time and proper time
- craigthone
- · Replies 45 ·
Graduate Solve GHY Boundary Term Problem for Calculations
- Zitter
- · Replies 4 ·
Undergrad Constructing the Tangent Space to the Sphere: A Simple Case Study in Relativity
- kent davidge
- · Replies 18 ·
High School What Is Lorentz Symmetry? Understanding & Differences
- TheQuestionGuy14
- · Replies 4 ·
Undergrad Origin of Deformation Energy in Curved Spacetime?
- timmdeeg
- · Replies 9 ·
Undergrad Solving Boundary Conditions in 4D Spacetime Volume
- BookWei
- · Replies 2 ·