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 Time frames and general relativity
- alonion
- · Replies 11 ·
Graduate Why Can I See UV and IF Light While Others Can't?
- Jordaniel
- · Replies 1 ·
Graduate Is Gravitational Redshift Similar to the Doppler Effect?
- aditya ver.2.0
- · Replies 22 ·
Graduate Why do parallel light beams not attract gravitationally?
- Danyon
- · Replies 6 ·
Graduate Light speed is not constant or accurate
- Eric Ward
- · Replies 50 ·
Graduate Instantaneous Curvature in Mass Warp Spacetime?
- TimeRip496
- · Replies 8 ·
Graduate Why do photons seem to defy the effects of time?
- Muthumanimaran
- · Replies 16 ·
Graduate Can we use a light clock to measure the accuracy of another clock?
- latter
- · Replies 19 ·
Graduate Does kinetic energy increase the inertial mass?
- davidbenari
- · Replies 11 ·
Undergrad Force on High Moving Object in X Direction: Explained
- johann1301
- · Replies 12 ·
Graduate Understanding Spacetime in QM and QFT: Time Treatment and Particle Tracking
- lucas_
- · Replies 8 ·
Graduate Gravitational waves in cosmology?
- TEFLing
- · Replies 7 ·
Graduate Proper Frame of Observer O: Unique Foliation?
- andrewkirk
- · Replies 3 ·
Graduate Understanding Einstein Field Equations & Levi Civita Symbol/Jacobian Determinant
- TimeRip496
- · Replies 2 ·
Graduate Panda"Understand Relationship between Stress-Energy Tensor and Interval
- HeavyMetal
- · Replies 3 ·
Graduate Understanding Conformal Time & Lorentzian Manifolds: A Layman's Guide
- palmer eldtrich
- · Replies 5 ·
Graduate Gravitational Effects & Instantaneous Spacetime Distortion
- TimeRip496
- · Replies 44 ·
Graduate Time Dilation & Tunnelling Probability in Double Potential Wells
- DDov
- · Replies 5 ·
Graduate Path of a planet orbiting a star in GR
- backward
- · Replies 8 ·
Graduate Tensor Calculus Problem: Simplifying Terms with Index Exchange
- Mentz114
- · Replies 4 ·
Graduate Frequency dependence of gravitational acceleration
- Dylan H
- · Replies 11 ·
Graduate Einstein Field Equation: Taking into Account Special Relativity & Light Speed
- TimeRip496
- · Replies 1 ·
Graduate Convex Neighbourhoods in Relativistic Spacetimes
- center o bass
- · Replies 6 ·
Graduate Bianchi Identity: Explained Simply & Relation to Riemann Tensor
- TimeRip496
- · Replies 11 ·
Graduate Speed of Light Constancy: Theory & Experiments for All Observers
- Lazzini
- · Replies 5 ·
Graduate Trampoline analogy for gravity
- arunshanker
- · Replies 12 ·
Graduate What happens to a person in free-fall at the center of the Earth?
- BATMANofPHYSICS
- · Replies 6 ·
Graduate Maxwell Field in General Relativity: Explained
- Einj
- · Replies 6 ·
Graduate Relative Speed of Two Inertial Frames | Proving It Must Be Same
- A.Abbadi
- · Replies 3 ·
Graduate Gauge Invariance of Weak Gravity Approximation
- Dixanadu
- · Replies 1 ·
Graduate Is the Schwarzschild Metric Always Applicable to Black Holes?
- TimeRip496
- · Replies 1 ·
Graduate Measuring Tape, Speed of Light & Time Dilation
- Xavier Cross
- · Replies 14 ·
Graduate Causality in Relativity: Examining the Illusion of Simultaneous Cause and Effect
- palmer eldtrich
- · Replies 27 ·
Graduate Hypothetical FTL communication black-boxes and causality
- Silber5
- · Replies 9 ·
Graduate Question about Metric Tensor: Can g_{rr} be Functions of Coordinate Variables?
- kkz23691
- · Replies 4 ·
Graduate How does GPS correct for time dilation?
- doaaron
- · Replies 69 ·
Graduate Questions about FLRW Metric: Finiteness, Radial Coord & More
- Mishra
- · Replies 5 ·
Graduate Metric matrix for binary star system?
- exmarine
- · Replies 1 ·
Graduate Einstein's Field Equations: Effective Potential Functions
- novice_hack
- · Replies 3 ·
Graduate Index-Free Decomposition of Derivative Timelike Congruence
- center o bass
- · Replies 5 ·
Graduate What is Spherically Symmetric Radiation-Filled Universe?
- Mentz114
- · Replies 1 ·
Graduate How Did Clifford's Theories Influence Modern Physics and String Theory?
- BiGyElLoWhAt
- · Replies 5 ·
Graduate Does gravity indeed travel in waves?
- Gaz1982
- · Replies 21 ·
Graduate Active/Passive Diffeomorphisms – clarification on Rovelli’s
- albedo
- · Replies 28 ·
Graduate Computing Curvature of Space at Point from Mass - Help Needed
- xortdsc
- · Replies 2 ·
Graduate Is mass movement influenced by the curvature of spacetime?
- TimeRip496
- · Replies 3 ·
Graduate Schwarzschild Radius Derivation: Is it Possible Classically?
- TimeRip496
- · Replies 1 ·
Undergrad Quick calculation check please
- name123
- · Replies 110 ·
Graduate How do closed timelike curves avoid mass discontinuities in spacetime?
- georgir
- · Replies 3 ·
Graduate Speed of light postulate and clock synchronization
- Fantasist
- · Replies 15 ·
Graduate I just want your guys opinion on my idea against E=mc
- siebe22
- · Replies 1 ·
Graduate Could the universe exist without space and time?
- Quds Akbar
- · Replies 4 ·
Graduate Time Passes Faster: Moving Frame w/ Many Clocks
- 1977ub
- · Replies 11 ·
High School Understanding Time: A Scientific Approach
- GusAmancio
- · Replies 2 ·
Graduate Relative Observed Speed: Earth-Falling Objects & Time Dilation
- LM542
- · Replies 3 ·
Graduate Measuring the One-Way Speed of Light: Roadblocks & Solutions
- Kanesan
- · Replies 2 ·
Undergrad Relative Time: Earth vs Mars - A Physics Enthusiast's Question
- Wh17e
- · Replies 7 ·
Graduate How Do Spinors Fit in With Differential Geometry
- stevendaryl
- · Replies 33 ·
Graduate Combining Special Relativity & Newtonian Gravity: Can We? Why?
- TimeRip496
- · Replies 7 ·
Graduate Dark Energy: Negative Pressure or Density?
- binbagsss
- · Replies 2 ·
Graduate Derivative of Vector Field: Connection Needed?
- stevendaryl
- · Replies 18 ·
Undergrad What are the energy implications of time travel into the future?
- Suraj M
- · Replies 37 ·
Graduate Can Each Particle Experience Time as Its Own Observer?
- lnsanity
- · Replies 4 ·
Undergrad Time Dilation Confusions - A Physics Newbie's Questions
- Rene Manzano
- · Replies 9 ·
Graduate What is a Frame of Reference in Physics?
- leo.
- · Replies 4 ·
Graduate Measuring One-Way Speed of Light: Experiments & Ideas
- Kanesan
- · Replies 4 ·
Graduate Gravitational equations used in model of orbiting bodies
- nearc
- · Replies 8 ·
Graduate Lowering Indices: Tensor Calculus Basics
- unscientific
- · Replies 8 ·
Graduate Mass Warping Spacetime Explained: Quantum Field Theory
- TimeRip496
- · Replies 2 ·
Graduate Time Dilation Effects on Observer Perception
- julianwitkowski
- · Replies 4 ·
Graduate Black Hole Event Horizon: Is There a Physical Boundary?
- ChrisVer
- · Replies 5 ·
Graduate Tensor Contraction: Contracting ##\mu## with ##\alpha##?
- unscientific
- · Replies 10 ·
Graduate Einstein vs Newton: Does GR Disprove Gravitation?
- Bernard
- · Replies 3 ·
Graduate Black Hole Singularity: Infinite Mass & Merging Supermassive Black Holes
- James S
- · Replies 5 ·
High School Will This Method Yield Absolute Synch?
- tonto
- · Replies 9 ·
Graduate Geodesic Deviation Equation Solved
- unscientific
- · Replies 7 ·
Graduate Mass Warping Spacetime: QFT & Gravitons Explained
- TimeRip496
- · Replies 4 ·
Graduate FRW Metric: Parameter k & Space/Space-Time Relationships
- binbagsss
- · Replies 6 ·
Undergrad Solving the Mystery of e=mc^2: Understanding the Power of Squared in Physics
- paulo84
- · Replies 21 ·
Graduate Gravitation on an Expanded Earth
- Lazzini
- · Replies 7 ·
Graduate Energy-momentum tensor radiation-dominated universe.
- binbagsss
- · Replies 4 ·
Graduate Both frames of reference predict the other is slower -- proof
- Unified28
- · Replies 11 ·
Graduate Questions about Time/Speed/Light
- arsenal1607
- · Replies 5 ·
Graduate Uncurving the Universe: Expansion After Big Bang & Energy Loss
- evelknee
- · Replies 3 ·
Graduate Elliptical Orbits In The Schwarzschild Metric
- dman12
- · Replies 4 ·
Graduate Problem Book in Relativity and Gravitation, online, free
- Spinnor
- · Replies 2 ·
Graduate Solving Lorentz Matrix Product Problem - Help Needed
- Dixanadu
- · Replies 13 ·
Graduate Do gravitational time dilation effects cancel out or add up?
- smoothoperator
- · Replies 5 ·
Graduate Rotating Disk and Time Dilation
- ionm
- · Replies 15 ·
Graduate What Time Is It? An Exploration of Time Dilations & Relativity
- notadoctor
- · Replies 5 ·
Graduate Einstein Velocity Addition for Relative Speed Calculation
- Quarlep
- · Replies 5 ·
Graduate Time Travel Possibility: Scottish Scientists Slow Light Speed?
- Auliter
- · Replies 8 ·
Graduate Relativistic Definition of Energy: E=Fd or E=md2/t2?
- mrspeedybob
- · Replies 3 ·
Graduate Asymptotic velocity under constant force?
- Timothy S
- · Replies 26 ·
Graduate Covarient Maxwell: Explaining 2nd Line From Attachment
- jennyjones
- · Replies 3 ·
Graduate Calculating Time Distortion Caused by Massive Objects: Explained with Formula
- carcosachild
- · Replies 1 ·
Graduate Is Mass Equivalence Explained by the Relationship Between Energy and Gravity?
- maline
- · Replies 21 ·
Graduate Energy Conservation Paradox: Is It True or Not?
- Dadface
- · Replies 76 ·
Graduate How to Determine Frame Size with Lorentz Transformation
- genxium
- · Replies 4 ·
Graduate A problem regarding time dilation
- THE HARLEQUIN
- · Replies 3 ·