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 Contradiction between Quantum Mechanics and Special Relativity？
- sunroof
- · Replies 14 ·
Graduate Einstein's box of phonons and energy-mass equivalence
- sunroof
- · Replies 4 ·
Graduate Theory of relativity second postulate
- Paul77
- · Replies 17 ·
Graduate Minkowski Norms and Lorentz Metric in Spacetime
- Rasalhague
- · Replies 8 ·
Graduate Black hole can regard as most efficency mass-energy convecter?
- magnetar
- · Replies 3 ·
Graduate Understand GR: Tips for Ancient Non-Mathematical Fossils
- sonar
- · Replies 5 ·
Graduate Relativistic Collision Effects on Speed, Mass
- gsimo1234
- · Replies 3 ·
Graduate Is Time Relative? The Twin Experiment and Its Implications
- land_of_ice
- · Replies 44 ·
Graduate Solving Space-Time Variation in the Ocean
- vdv
- · Replies 1 ·
Graduate Relative Motion: Framing Object Velocity
- Edi
- · Replies 1 ·
Graduate Does spacetime could curved in a square way ?
- hamilton00989
- · Replies 3 ·
Graduate Riding on a Photon: Is Time Really Eternal?
- hamilton00989
- · Replies 3 ·
Undergrad F = qvB in Relativity: A Charge in Magnetic Field
- IPhO' 2008
- · Replies 3 ·
Graduate Why does time dilation only affect GPS satellites in one direction?
- cfrogue
- · Replies 119 ·
Graduate Power Required to Accelerate Space Craft to Near Light Speed
- edgepflow
- · Replies 3 ·
Graduate Do Charged Particles Radiate in Different Frames of Reference?
- High Mass
- · Replies 1 ·
Graduate Energy density of grav. field - analagous to EM
- ringerha
- · Replies 7 ·
Graduate Energy conservation in relativity
- espen180
- · Replies 4 ·
Graduate Electric resonance in a moving frame
- vin300
- · Replies 15 ·
Graduate How Do Black Holes Increase Their Mass Despite Observational Paradoxes?
- jf22901
- · Replies 17 ·
Undergrad Can a moving observer detect a magnetic field from a stationary electric charge?
- crx
- · Replies 4 ·
Graduate Formalism for an extended object
- alejandrito29
- · Replies 2 ·
Graduate How does an observer's perception of a black hole change while diving into it?
- LukeD
- · Replies 16 ·
Graduate Explaining Relative Simultaneity
- Grimble
- · Replies 80 ·
Graduate Merging Black Holes & the Nature of Time
- sciroccokid
- · Replies 4 ·
Undergrad A 13-Year-Old's Physics Dilemma
- fur
- · Replies 1 ·
Graduate Could Space-Time Variability Explain Unexpected Spacecraft Speeds?
- cary cato
- · Replies 1 ·
Graduate Observing the Universe at Relativistic Speeds: Confusion and Curiosity
- ExecNight
- · Replies 6 ·
Graduate GR Resources: Books 3,4,6 & Arxiv Free Material
- qspeechc
- · Replies 1 ·
Graduate Does Relativistic Length Contraction Induce Stress in Physical Bodies?
- matheinste
- · Replies 3 ·
Graduate Equivalence principle to other forces?
- Gerenuk
- · Replies 6 ·
Graduate Does Object Configuration Remain Consistent After Relativistic Transport?
- matheinste
- · Replies 6 ·
Graduate Q. about Bradley's Stellar Aberration
- Zorba
- · Replies 2 ·
Graduate What is the relationship between black holes and singularities?
- Pequinino
- · Replies 15 ·
Graduate Calculating Covariant Derivate of Tensor T^u_v
- alejandrito29
- · Replies 2 ·
Graduate Does c-invariance in SR postulate need inertial frames ?
- myspacetime
- · Replies 14 ·
Graduate Gravitational redshift and time dilation
- NanakiXIII
- · Replies 9 ·
Graduate Why is invariant interval invariant?
- kof9595995
- · Replies 29 ·
Graduate Can Relativity Help Create a Powerful Energy Generator?
- TinManZin
- · Replies 3 ·
Graduate Wormole and reactionless drive
- Edi
- · Replies 15 ·
Graduate Local detectability of frame-dragging
- bcrowell
- · Replies 4 ·
Graduate Does the Heisenberg Uncertainty Principle Affect Relativity Calculations?
- Tegg Mentall
- · Replies 8 ·
Graduate Einsteins gravity theory (bending space) question
- superstring10
- · Replies 8 ·
Graduate Solving Tensor Integration on a Unit Sphere: Help Needed
- tim85ruhruniv
- · Replies 3 ·
Graduate Question about equivalence principle
- TurtleMeister
- · Replies 39 ·
Graduate Matrix Formalism of GR: Good References for Writing Equations
- thehangedman
- · Replies 1 ·
Graduate The Grand Father paradox is flawed.
- frankinstein
- · Replies 33 ·
Graduate Continuous application of Lense-Thirring precession: flyby anomalies
- moving_on
- · Replies 1 ·
Graduate Slow clocks on moving body is an illusion?
- jakesee
- · Replies 4 ·
Graduate How is the -(ct)^2 term in Minkowski metric conceived?
- jakesee
- · Replies 2 ·
Graduate Fractal Nature of Gravitational Forces
- Lostpinky
- · Replies 2 ·
Graduate What is the law of reflection in special relativity?
- spaceofwaste
- · Replies 1 ·
Graduate How is mass density affected by speeds near c?
- elliottmarter
- · Replies 5 ·
Graduate Length contraction in Lorentzian relativity
- zenith8
- · Replies 30 ·
Graduate Faster than the speed-of-light
- Elvin12
- · Replies 24 ·
Graduate General Question about Gravitational Potential & General Relativity
- Vectronix
- · Replies 4 ·
Graduate Confusion about a laser shining perpendicular to a moving inertial frame
- gupyuson
- · Replies 6 ·
Graduate Is this idea of time travel consistent with relativity?
- superpaul3000
- · Replies 3 ·
Graduate Gravitational redshift and time dilation
- Zman
- · Replies 10 ·
Undergrad Did Gravity Impact the Time Travel of Sergei Krikalyov?
- sciroccokid
- · Replies 9 ·
Graduate Calculating Final Velocity of Matter into Black Hole Event Horizon
- eli_lied
- · Replies 17 ·
Graduate Time Dilation Formula: Clarifying Confusion
- Grimble
- · Replies 146 ·
Graduate Principle of Least Action - Straight Worldline on a Geodesic
- runner108
- · Replies 4 ·
Graduate Trying to understand the Why or Relativity.
- Batman24
- · Replies 17 ·
Graduate Slowly add mass to a neutron star till it collapses.
- Spinnor
- · Replies 6 ·
Graduate Bivectors, Cartan Geometry and Curvature
- Orbb
- · Replies 3 ·
Graduate Relativistic Acceleration Contradiction
- Threadlike
- · Replies 10 ·
Graduate [Special relativity - Mathematical background] Tensor and pseudo-tensor
- wizard85
- · Replies 2 ·
Undergrad Relativity & Mass Increase: Is it Just a Momentary Expansion?
- sudar_dhoni
- · Replies 12 ·
Graduate 45 dergree mirrors in Special Relativity
- YellowTaxi
- · Replies 13 ·
Undergrad Is this an Ill-posed Question?
- Phrak
- · Replies 12 ·
Graduate Energy Density of the gravitational field
- Geometrick
- · Replies 1 ·
Graduate What is the Role of the Cosmological Constant in the Expansion of the Universe?
- Shahin.Omar
- · Replies 1 ·
Graduate Anti-matter black-hole, matter black hole, different?
- Spinnor
- · Replies 6 ·
Graduate How Does Relativity Affect the Length of Spinning Circles at High Speeds?
- Quinzio
- · Replies 20 ·
Graduate Expanding universe and light detection
- UseAsDirected
- · Replies 1 ·
Graduate Wormhole Time Machine: As Time Goes On
- edgepflow
- · Replies 3 ·
High School Why is light travelling in straight line? (see restrictions)
- sten
- · Replies 23 ·
Graduate Is Time a Testable Dimension in Science?
- mangaroosh
- · Replies 29 ·
Graduate Acceleration in an inertial worldline?
- runner108
- · Replies 9 ·
Graduate Explanation of Wiki regarding Geodesics as Hamiltonian Flows:
- runner108
- · Replies 3 ·
Graduate Four-vector from 3 space components?
- jason12345
- · Replies 3 ·
Graduate I'm learning about relativity and, by extension, the classic
- fhisicsstudnt
- · Replies 30 ·
Graduate Doing General Relativity with Cartesian coordinates?
- kochanskij
- · Replies 2 ·
Graduate Light Cones | QM: Understanding the Cone Shapes & Events Outside the Light Cone
- curiousphoton
- · Replies 8 ·
Graduate Reciprocal Lorentz Contraction Mismatch
- nutgeb
- · Replies 5 ·
Graduate Calculating Time Dilation and Simultaneity in Special Relativity
- cfrogue
- · Replies 13 ·
Graduate Gaussian Co-ordinates-background and derivation
- K29
- · Replies 2 ·
Graduate Is black hole elementary particle?
- Sergei65
- · Replies 2 ·
Graduate Speed of light vertical and horizontal in gravity
- Zman
- · Replies 1 ·
High School Travelling In A Straight Line In Space
- Sammyg
- · Replies 3 ·
Graduate What is the Orientation of Lightcones in a Kerr Ring?
- Dmitry67
- · Replies 2 ·
Graduate Time Dilation and/or Kinetic energy the same/different?
- Noja888
- · Replies 4 ·
Graduate A Few General Questions About Special Reletivity
- JKirkland
- · Replies 3 ·
Graduate Radius of Universe, electrons, and strings.
- Spinnor
- · Replies 8 ·
Graduate A few questions about the Lorentz factor
- kotreny
- · Replies 12 ·
Graduate What is the speed of light in gravity?
- Zman
- · Replies 5 ·
Graduate How Does Relativity Influence Musical Octaves?
- Lear
- · Replies 6 ·
Graduate Does Special Relativity Affect Clock Synchronization on a Moving Spaceship?
- E92M3
- · Replies 3 ·
Undergrad Relativity and Inertia - An Exploration
- Urmi Roy
- · Replies 31 ·