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 regarding GR wrt potential energy
- Buzz Bloom
- · Replies 63 ·
Graduate Particle & Energy: Does Mass Decrease with Speed?
- zainalinaeem
- · Replies 4 ·
Undergrad How Does the Twin Paradox Illustrate Time Dilation in Special Relativity?
- AYYYLAMOOOO
- · Replies 12 ·
Undergrad Frame of Reference: Definition & Explanation
- fog37
- · Replies 1 ·
Graduate Lorentz invariance of the Minkowski metric
- "Don't panic!"
- · Replies 24 ·
Graduate Resolving Tiny Structures: De-Broglie-Relation & Relativity
- Anton Alice
- · Replies 2 ·
Graduate Photon Orbit Around a Black Hole: Conservation Law Effects
- Ontophobe
- · Replies 3 ·
Graduate Four Indistinguishable Phenomena?
- Ontophobe
- · Replies 5 ·
Graduate Is Lorentz invariance is true in curved spacetime?
- kroni
- · Replies 4 ·
Undergrad E=MC^2 - easy explanation for kids
- Tom Minogue Hastings
- · Replies 23 ·
Undergrad Can gravatational force only influence objects with energy?
- dawningparadox
- · Replies 8 ·
Graduate Spacetime Interval: Is (Δs)2 = (ct)2/γ2 a Coincidence?
- Battlemage!
- · Replies 2 ·
Graduate Questions about E=mc^2 - Understanding the Complexity
- Dan248
- · Replies 25 ·
Graduate Superluminal Energy Transport & Causality: Does It Violate Relativity?
- PFfan01
- · Replies 7 ·
Graduate Phonon Lorentz Invariance in Superfluids - Papers?
- philton
- · Replies 3 ·
Graduate Unraveling the Metric Found in Special Relativity
- Emilie.Jung
- · Replies 1 ·
Graduate GTR Postulates: What to Know About the Equivalence Principle
- A AM ARYA
- · Replies 10 ·
Graduate Equivalence of formulas for time reduction factors in GR
- Dema
- · Replies 24 ·
Graduate Einstein's Solution to the PDE for Tau in 1905 SR Paper
- DoobleD
- · Replies 4 ·
Graduate How does the doppler effect resolve the twin paradox?
- Dennydont
- · Replies 4 ·
Undergrad Transformations in higher dimensions
- Rahma Al-Farsy
- · Replies 9 ·
Graduate FTL: Is Faster-than-Light Information Relocation Theoretically Possible?
- martix
- · Replies 1 ·
Graduate Do Photons Challenge the Concepts of Mass and Energy in Physics?
- Molar
- · Replies 4 ·
Graduate Speed of Light & Black Hole: What Happens?
- Enjamiering
- · Replies 4 ·
Undergrad Vertical Interferometer Experiments: Michelson-Morley, Miller, etc.
- jeremyfiennes
- · Replies 5 ·
Graduate What dimension does space-time curve in?
- Ez4u2cit
- · Replies 32 ·
High School Is spacetime just a mathematical trick or is it the actual physical reality?
- DoobleD
- · Replies 41 ·
Graduate Does Stress-Energy Tensor Depend on Direction of Relative Velocity?
- James Nelson
- · Replies 4 ·
Graduate What causes the warping of spacetime?
- gravityquantum11
- · Replies 3 ·
Graduate Solving Electromagnetic Tensor & B-Field
- StuartY
- · Replies 4 ·
Graduate Einstein tensor of a gravitational source
- CharlesJQuarra
- · Replies 16 ·
Graduate Interstellar travel and Special Relativity
- ThomasLLS
- · Replies 16 ·
Graduate Velocity-Based Time Dilation: Teen's $400k Video Correct?
- Menbailee
- · Replies 1 ·
Graduate Gravitational Waves & Multidimensional Spacetime: Experiments & Detection
- Guthrie Prentice
- · Replies 1 ·
Undergrad Question about photons traveling on same path
- stever
- · Replies 30 ·
Graduate Naive questions about SR: time and space dilation
- DaveC426913
- · Replies 9 ·
Graduate Why pseudo-Riemannian metric cannot define a topology?
- victorvmotti
- · Replies 21 ·
Undergrad Wrong Block Theory of Time Description: Evaluate It
- Heidegger1
- · Replies 2 ·
Graduate Relation between electromagnetism and relativity
- entropy1
- · Replies 16 ·
Graduate Basic Questions on Special Theory of Relativity
- Sailark
- · Replies 11 ·
Graduate Components of The Electromagnetic Field Strength Tensor
- darida
- · Replies 5 ·
Graduate Imaginary Transverse Space of Superluminal Lorentz Transform
- greswd
- · Replies 6 ·
Undergrad Questions about time dilation, special relativity, etc.
- MX Maniac
- · Replies 20 ·
Graduate Is Our Future Already Determined by the Laws of Physics?
- Iconoclast
- · Replies 13 ·
Graduate How do nonlinear effects in GR challenge the mass-volume-density equation?
- Buzz Bloom
- · Replies 11 ·
Graduate How many ways there are to conclude that Eo=mc^2 ?
- sami_m
- · Replies 43 ·
Graduate Varying The Gibbons-Hawking Term
- adsquestion
- · Replies 1 ·
Undergrad Inertial Frame of Reference vs Spacetime
- Pjpic
- · Replies 6 ·
Graduate How Does Doppler Shift Affect Light From a Shuttle to a Mother Ship in Space?
- Buckethead
- · Replies 5 ·
Graduate Grasping the Properties of Minkowski Space
- Boon
- · Replies 4 ·
Graduate Are SR effects caused by spacetime distortion?
- alw34
- · Replies 18 ·
Graduate Does space contraction affect planet evolution?
- burashka5719
- · Replies 6 ·
Graduate Global casual structure of space-time, well-behaved function
- dhalilsim
- · Replies 5 ·
Undergrad The relationship between F=ma and E=mc2
- Starlover
- · Replies 5 ·
Undergrad Deriving Concepts of Tachyons: Speed, Energy & c
- greswd
- · Replies 1 ·
Undergrad How does the time dilation equation work?
- Isaac0427
- · Replies 23 ·
Graduate Conservation of Energy and General Relativity
- physicsquantum
- · Replies 2 ·
Graduate Schwarz Inequality is your friend
- samalkhaiat
- · Replies 12 ·
Graduate What Surface Do Null Rays Form in a Modified Minkowski Space?
- adsquestion
- · Replies 5 ·
Undergrad Twin Paradox: Pensioner's Perspective on Length Contraction
- fxfocus
- · Replies 14 ·
Graduate Number of wheel rotations relativistic car
- lightarrow
- · Replies 38 ·
Graduate Gravitational Lensing Effect: Frequency & Wavelength Change?
- flexible_time
- · Replies 11 ·
Graduate Are Cosmological & Universal Constants the Same?
- Starlover
- · Replies 9 ·
Undergrad Understanding Space-Time: Exploring Einstein's Theory of General Relativity
- themagician
- · Replies 8 ·
Graduate Notation difficulties with metric and four vector
- tomwilliam2
- · Replies 6 ·
Graduate What Defines Future-Directed Vectors in Physics?
- Einj
- · Replies 5 ·
Graduate Witness Life of Universe from Black Hole Event Horizon
- Ping
- · Replies 3 ·
High School Gravitational Field Strength of Bodies Exceeding c
- Einstein's Cat
- · Replies 1 ·
Graduate Falling Into a Black Hole: Time Dilation & Survival
- serp777
- · Replies 1 ·
Graduate Intersection of Hyperboloid & 2-Plane=Ellipse
- adsquestion
- · Replies 1 ·
Graduate Why Do the Terms in the Lagrangian Action Have the Same Dimension?
- shadishacker
- · Replies 5 ·
High School Galilean Relativity: Different Frames, Different Results
- Alpharup
- · Replies 11 ·
Graduate What is the experimental evidence for mass relativity?
- James Nelson
- · Replies 17 ·
Graduate Time Dilation for Interplanetary Migration: Can We Go?
- SharkySharp
- · Replies 4 ·
Undergrad Can Emergent Spacetime Concepts Enable Faster-Than-Light Travel?
- jlcd
- · Replies 1 ·
High School How Can Time Dilation Be Explained Without Math?
- TLR
- · Replies 24 ·
Undergrad Mass Energy Equivalence Equation
- anthonyvigh
- · Replies 24 ·
Graduate Analysis of Train in Tunnel Problem Using an AND Gate
- Alfred Cann
- · Replies 7 ·
Graduate Roadmap to Understanding the Theory of Relativity
- JiT
- · Replies 6 ·
Graduate Interesting Effect of Conformal Compactification on Geodesic
- adsquestion
- · Replies 10 ·
Graduate Proving Spin Coefficient Transformation for Null Rotation with l Fixed
- Ravi Panchal
- · Replies 1 ·
Graduate Relationship Between Spatial Expansion and Gravity's Force?
- jpescarcega
- · Replies 13 ·
Graduate Interesting applications of relativistic angular momentum?
- bcrowell
- · Replies 12 ·
Graduate Gravitational Stress: Source of Energy for Orbiting Bodies
- T S Bailey
- · Replies 2 ·
Graduate Deriving Lorentz transformations
- abhinavjeet
- · Replies 78 ·
Undergrad Is the relativity of simultaneity the reason for time dilation?
- MachPrincipe
- · Replies 8 ·
Graduate Riemannian Penrose Inequality: Proof Restriction to n=3?
- Sasha_Tw
- · Replies 5 ·
Graduate What was the explanation of OPERA superluminal neutrinos?
- MachPrincipe
- · Replies 14 ·
Graduate Why does length contraction solve this? (2 Lightclocks)
- kablion
- · Replies 9 ·
Graduate What Happens to Energy and Spacetime at a Black Hole's Event Horizon?
- _PJ_
- · Replies 4 ·
Graduate Poisson, Einstein, Weak Energy Condition
- astrolollo
- · Replies 1 ·
Graduate Exterior Schwarzschild Spacetime Defined
- Sasha_Tw
- · Replies 3 ·
Graduate When do total differentials cancel with partial derivatives
- sunrah
- · Replies 4 ·
Undergrad Black holes and the relativity of simultaneity
- rjbeery
- · Replies 3 ·
Undergrad Is the speed of all waves constant?
- mrsmitten
- · Replies 12 ·
Graduate GR Multibody Problem: Comparing Experimental Measurements
- Igorr
- · Replies 13 ·
Graduate What's the meaning of the norm of Poynting 4-vector?
- andresB
- · Replies 16 ·
Undergrad Why don't we run out of gravitational force?
- fredreload
- · Replies 5 ·
Graduate Can Gyroscopes Curvature of Space Explain Precession Motion?
- Dukon
- · Replies 18 ·
Graduate More twin paradox and acceleration
- DiracPool
- · Replies 4 ·