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 My Twin in a Schwarzschild Black Hole: What Would He See?
- touqra
- · Replies 17 ·
Graduate I've got a black hole in my understanding
- tribdog
- · Replies 1 ·
Confirmed: E=mc^2 Validated Once Again, Despite Skepticism | PhysLink
- ZapperZ
- · Replies 5 ·
Graduate Simultaneity Confusion in Relativity
- Wizardsblade
- · Replies 4 ·
Graduate Unraveling the Mystery of Warped 4D Spacetime
- daniel_i_l
- · Replies 4 ·
Graduate Back Reaction in Black Hole Physics and GR
- touqra
- · Replies 1 ·
Graduate Is Gravity Explained by the Dimple in Space-Time Fabric?
- hotzelj
- · Replies 5 ·
Graduate Are Experiments Proving Length Contraction?
- Wizardsblade
- · Replies 4 ·
Graduate Maximum angular velocity of a rotating cog in special relativity
- fliptomato
- · Replies 4 ·
Undergrad Does a Black Hole's Event Horizon Increase with Mass?
- benzun_1999
- · Replies 9 ·
Graduate A feasible experiment that can decide
- martillo
- · Replies 32 ·
Graduate GR: Inertial Systems & Direction Changes of Motion
- Ratzinger
- · Replies 3 ·
Graduate Does the Constant Speed of Light Postulate Extend to Mechanical Processes?
- JM
- · Replies 15 ·
Graduate What can an observer see during his travel into BH?
- wangyi
- · Replies 3 ·
Graduate Is it Possible For A Particle To Stay Completely Still in Space-Time?
- OpenSourceArts
- · Replies 15 ·
Graduate Accuracy of SR's Time Dilation & Space Contraction
- Wizardsblade
- · Replies 2 ·
Graduate Is arithmetic still true in a gravitational field
- Mr. Tambourine Man
- · Replies 2 ·
Undergrad Why Does Mass Increase with Speed?
- Mr. Tambourine Man
- · Replies 11 ·
Graduate Moral Relativity: Is There an Absolute Moral Fact?
- Dawguard
- · Replies 44 ·
Graduate What Does the Right End of an Oscillating Pen Look Like in Relativistic Motion?
- Marius311
- · Replies 8 ·
Graduate Possible method to escape a black hole?
- ACG
- · Replies 7 ·
Graduate Length Contraction: Can Fundamental Particles Contract?
- touqra
- · Replies 3 ·
Graduate Unraveling the Mystery of Gravity and Space-Time Curvature in General Relativity
- -Job-
- · Replies 6 ·
Graduate Locally Inertial Coordinates: Spacetime Points & Freely Falling Particles
- Ratzinger
- · Replies 1 ·
Graduate If power were applied to a one meter cube of quartz crystal
- NeedBioInfo
- · Replies 1 ·
High School From Lights Point of Reference Is It Traveling Infinetly Fast?
- Lord Draco
- · Replies 6 ·
Undergrad Speed of light in different frames
- michael879
- · Replies 14 ·
Graduate What is wrong with my thinking?
- pivoxa15
- · Replies 2 ·
Undergrad Twin paradox? HA I'm an only child.
- tribdog
- · Replies 17 ·
Graduate Rigid ball rotating with surface velocity at 0.9999c
- obiwanjabroni
- · Replies 1 ·
Graduate Photons at less than speed of light?
- rushil
- · Replies 10 ·
Graduate What Are the Merits and Drawbacks of Kaluza-Klein Theory?
- El Hombre Invisible
- · Replies 6 ·
Graduate What are your thoughts on the Pirelli relativity award?
- pervect
- · Replies 8 ·
Graduate Flow of Time - What Effect Does Speed Have on Electron Orbits?
- ralphcalc
- · Replies 26 ·
Graduate Preservation of Matter/Energy Through Time
- -Job-
- · Replies 1 ·
Graduate What is the ontology of general relativity ?
- vanesch
- · Replies 6 ·
High School Did Einstein like the term Relativity ?
- rczmiller
- · Replies 2 ·
Graduate Is Spacetime a Fluid Like Ether in Black Hole Analogies?
- lwymarie
- · Replies 1 ·
Undergrad Basic concept in special relativity
- Theoretician
- · Replies 6 ·
Undergrad A very basic question about relativity
- nazgjunk
- · Replies 22 ·
Graduate Think about SR as different observers using different coordinate
- daniel_i_l
- · Replies 4 ·
Graduate Lorentz contraction inverse trouble
- gs_cmans
- · Replies 6 ·
Graduate Does perspective affect light clocks in relativity?
- thunderchicken
- · Replies 3 ·
Graduate Einstein's space elevator and the twins paradox
- Enuma_Elish
- · Replies 8 ·
Graduate Black hole question: apparent rate of growth as seen by external observers
- JesseM
- · Replies 6 ·
Graduate GR, time-like energy, and photon-path bending?
- cefarix
- · Replies 3 ·
Graduate How Can Light Travel at Speed c Despite Having Energy?
- FeynmanMH42
- · Replies 13 ·
Graduate Functional independence and energy
- kleinwolf
- · Replies 6 ·
Graduate Explaining E/M Ratios of Charged Particles without Math
- samalkhaiat
- · Replies 13 ·
Graduate Are Relativity and Thermodynamics Compatible?
- einstone
- · Replies 4 ·
Graduate Is the standard view of gravity in general relativity accurate?
- The_Obsessive_One
- · Replies 26 ·
Graduate E=mc^2 in gravitational fields
- cap.r
- · Replies 11 ·
Undergrad Why did the Michelson-Morley experiment show a small fringe shift?
- Wizardsblade
- · Replies 9 ·
Graduate Can an electron escape a charged black hole after crossing its event horizon?
- stanleykorn
- · Replies 4 ·
Graduate Who is Older: Spaceships Moving at Close to Speed of Light?
- jeffceth
- · Replies 10 ·
Undergrad Photon Behavior: Wave or Particle?
- ThomasFuhlery
- · Replies 6 ·
Graduate Active Gravitational Mass in GR
- pmb_phy
- · Replies 16 ·
Graduate Why don't gravitational time dilation and length contraction cancel out?
- Okidanokh
- · Replies 1 ·
Graduate GR Time Dilation: Does It Occur in Inertial Frames?
- CJames
- · Replies 1 ·
Graduate How Does Time Dilation Affect Clocks on Moving Objects?
- moose
- · Replies 6 ·
Graduate How Does Kaluza-Klein Theory Link Electromagnetism and General Relativity in 5D?
- kleinwolf
- · Replies 9 ·
Einstein said: NO Absolute Rest
- Macro
- · Replies 24 ·
Undergrad K-PAX: A Scientific Analysis of Interstellar Travel and the Speed of Light
- Ploegman
- · Replies 48 ·
Undergrad Does Earth's Rotation Affect Time Dilation Between Day and Night?
- daytripper
- · Replies 6 ·
Graduate What are tensors and how do they relate to General Relativity?
- FeynmanMH42
- · Replies 1 ·
Graduate Solve Gravity Puzzle: m1 & m2 Connected by a Bar
- pervect
- · Replies 5 ·
Graduate Objections to Relativistic mass
- pmb_phy
- · Replies 12 ·
Graduate The Effects of Relativistic Mass on High Speed Collisions
- nemosum
- · Replies 2 ·
- Poll
Graduate Does the Trajectory Formula Account for the Speed of Light Delay?
- kleinwolf
- · Replies 4 ·
Graduate Experimenting with Light - Answers to Your Questions
- silici
- · Replies 3 ·
Graduate Gravity in a Warped Space-Time: Is It Possible?
- -Job-
- · Replies 10 ·
Graduate Question on Addition of Velocities
- nemosum
- · Replies 11 ·
Graduate Why is Relativity still a theory?
- Wizardsblade
- · Replies 20 ·
Graduate How do we know Gravity Moves the Speed of Light?
- azneternity
- · Replies 11 ·
Graduate Could Faster-Than-Light Travel Create Time Dilation Effects?
- EngineeredVision
- · Replies 14 ·
Graduate Can a black hole form using only photons - in theory?
- cybernomad
- · Replies 9 ·
Graduate Relativistic physics of space?
- Wizardsblade
- · Replies 5 ·
Graduate Energy Acceleration: Electron Mass at C?
- EP
- · Replies 2 ·
Undergrad Why do we judge time by light?
- Wizardsblade
- · Replies 35 ·
Graduate How far back in time can we see?
- Hooloovoo
- · Replies 5 ·
Graduate How Does the Speed of Light Affect Observed Particle Trajectories?
- kleinwolf
- · Replies 16 ·
Graduate What Are the Best Textbooks for Understanding Special Relativity?
- JM
- · Replies 3 ·
Graduate Stability of 4D Gravity Model: Examining Possibilities
- Gold Barz
- · Replies 2 ·
Speed of Light Exceeded: Debunking the Controversial Claim
- azneternity
- · Replies 1 ·
Graduate Does Length Contraction Affect the Wavelength of Light from a Moving Source?
- Zero-G
- · Replies 1 ·
Graduate What happens when two photons travel at the speed of light?
- Raziel McCloud
- · Replies 40 ·
Graduate Light Relativity Questions - Explained
- SigurRos
- · Replies 10 ·
Graduate Relativity Paradox: Resolving Hand-Waving Questions
- Reshma
- · Replies 3 ·
Graduate The Potential Problems with Tachyons in Our Universe
- cd27
- · Replies 11 ·
Graduate Can a Car Travel Faster Than Light?
- ludi_srbin
- · Replies 13 ·
Graduate Lorentz Transformation: What Is It and How To Use It?
- nemosum
- · Replies 12 ·
Graduate Falling Feet First into a Black Hole
- Allday
- · Replies 4 ·
Undergrad What Are Non-Astrophysical Examples of Experimental Evidence for E=MC^2?
- Brewer
- · Replies 5 ·
Graduate What Unique Insights Does Wald Offer on Teaching General Relativity?
- Spin_Network
- · Replies 2 ·
Graduate Picture a small mass orbiting around a large mass
- Jonny_trigonometry
- · Replies 22 ·
Graduate High speeds - becoming a black hole
- dhi
- · Replies 34 ·
Graduate Could Light Speed Fluctuate Due to Transfer of Inertial Reference Frames?
- cd27
- · Replies 6 ·
Graduate Relative Nature of Time: Is it True?
- eon_rider
- · Replies 4 ·
Graduate When the station comes to the train?
- Macro
- · Replies 9 ·
Graduate Speed of Light: Path in Gravity Well & Denser Medium
- wolram
- · Replies 3 ·