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
I think i figured out gravity, really
- jakepdog
- · Replies 3 ·
Graduate Why Euclidean Geometry Fails in Real-World Space
- xMonty
- · Replies 9 ·
Graduate Curved Space: Is it More Than a Metaphor?
- xMonty
- · Replies 9 ·
Graduate A possible uncrossable boarder between bradyons and hypothetical tachyons
- Willowz
- · Replies 3 ·
Graduate Evidence that space and time has equal footing?
- Gerenuk
- · Replies 4 ·
Graduate How we compute killing vector for two-sphere
- off-diagonal
- · Replies 3 ·
Graduate Is Time Truly a Dimension in Physics or Something More?
- tempwonderer
- · Replies 6 ·
Graduate How is Constant speed of light referenced
- Zman
- · Replies 5 ·
Graduate Information loss via black Holes
- Naty1
- · Replies 4 ·
Graduate Is there any Limit to the kinetic energy
- raknath
- · Replies 11 ·
Graduate Time Dilation: How Much Fuel for 99.999999% of Speed of Light?
- 0ctothorp
- · Replies 1 ·
Undergrad Photon clock example in special relativity
- ivans
- · Replies 7 ·
Graduate What is the Relative Speed of Light at an Angle?
- Gear300
- · Replies 2 ·
Graduate Can matter waves travel faster than light in vacuum?
- gonchenshi
- · Replies 13 ·
Graduate Vacuum energy destruction of wormhole
- nomadreid
- · Replies 2 ·
Graduate Definition of energy in general relativity
- tom.stoer
- · Replies 15 ·
Graduate Is geometrodynamics still an active research field?
- Reedeegi
- · Replies 1 ·
Graduate Schwarzschild solution and velocity of stationary observer
- dianaj
- · Replies 8 ·
Graduate Time in a black hole and Weyl curvature
- Naty1
- · Replies 6 ·
Graduate Why won't Spaceships at Right Angles Collide in Frame S1?
- daniel_i_l
- · Replies 17 ·
Undergrad Time dilation at an unchanging velocity
- ryuunoseika
- · Replies 9 ·
Graduate Does the null cone represent a gravitational wave or past events?
- FayeKane
- · Replies 2 ·
Graduate Gravitational effects on photons
- jnorman
- · Replies 11 ·
Graduate How to Calculate the Limit of Fraction Involving Four Vectors with q --> 0
- parton
- · Replies 4 ·
Undergrad What is the effect of aging during space travel?
- Radek01
- · Replies 23 ·
Graduate Why does ds² scale incorrectly in the metric tensor formulation?
- jdrudmin
- · Replies 4 ·
Undergrad Time Dilation and Future Interstellar Travel
- JuggyJugs
- · Replies 16 ·
Graduate What are the weaknesses of Einstein's GR ?
- Neitrino
- · Replies 10 ·
Graduate Why does a photon have zero rest mass?
- klij
- · Replies 14 ·
Graduate Tunneling does not carry information > c?
- nomadreid
- · Replies 8 ·
Graduate Can someone explain time dilation w.r.t following experiment?
- venuz
- · Replies 18 ·
Graduate What is gravitational potential energy in General Relativity?
- Zman
- · Replies 3 ·
Graduate Is it technically correct to say matter is made of energy
- klij
- · Replies 12 ·
Graduate Does Einstein implicitly proves himself and the Lorentz Transformation wrong?
- Grimble
- · Replies 1 ·
Undergrad Why Does Time Seem to Slow Down When Checking a Clock Mid-Tick?
- Llama77
- · Replies 3 ·
Graduate Can you pull a pole back out of a black hole's event horizon?
- mjacobsca
- · Replies 51 ·
Graduate Creating Repulsive and Attractive Gravity
- putongren
- · Replies 1 ·
Graduate Mass/energy as a condition of spacetime
- FayeKane
- · Replies 1 ·
High School Why do objects orbit instead of falling straight down?
- igurmendez
- · Replies 8 ·
Graduate How do two observers measure different times until a collision in special relativity?
- brollysan
- · Replies 6 ·
Graduate Is the Dual Basis in Minkowski Space Affected by the Metric Tensor?
- NanakiXIII
- · Replies 2 ·
Graduate Constant Velocity Motion In Train Car
- mjacobsca
- · Replies 3 ·
Graduate Relativistic Effects on CMB and Cosmic Rays
- qraal
- · Replies 4 ·
Graduate Constraints on speed of light?
- Quickless
- · Replies 1 ·
Graduate Can anything accelerate time in a strong gravitational field?
- Tominator
- · Replies 8 ·
Graduate One-forms vs vectors and why gradient looks like a vector
- NanakiXIII
- · Replies 27 ·
Graduate Gravitational mass vs inertial mass
- Neitrino
- · Replies 1 ·
Undergrad Light travel time across a moving car in different reference frames
- endusto
- · Replies 5 ·
Graduate Trying to generally understand Relativity.
- Virtuous
- · Replies 13 ·
Graduate General Relativity Recorded Lectures
- nicksauce
- · Replies 7 ·
Graduate Relativistic particle scattering
- Gerenuk
- · Replies 8 ·
Graduate How Can Local Theories in General Relativity Influence Global Topology?
- JustinLevy
- · Replies 9 ·
Graduate How Does Mass Transform into Momentum in Space Travel?
- FayeKane
- · Replies 6 ·
Graduate How is time related to black holes besides time dilation?
- sciroccokid
- · Replies 5 ·
Undergrad Time dilation and the photon clock
- Stellar1
- · Replies 74 ·
Graduate Everyday examples of general and special relativity
- sciroccokid
- · Replies 13 ·
Graduate A room with a stronger gravitational force?
- harris_T
- · Replies 8 ·
Graduate Interactions of Moving Particles: Magnetic Fields and Experimental Results
- crx
- · Replies 1 ·
Graduate Relation between graviton and space curvature
- xMonty
- · Replies 4 ·
Graduate Is Travel to Parallel Universes Just a Myth or a Real Possibility?
- earamsey
- · Replies 4 ·
Graduate Is Gravitational Interaction Affected by Different Shapes of Bodies?
- paweld
- · Replies 3 ·
Graduate Combining Time Dilation from velocity and gravity
- edgepflow
- · Replies 3 ·
Undergrad Why can't objects exist in fewer than four dimensions?
- curiousphoton
- · Replies 9 ·
Undergrad Deriving the Michelson Interferometer Equation: d_m = (m[lambda])/2
- NovaKing
- · Replies 1 ·
Graduate Why does the LTB metric have dimensional inconsistencies?
- micomaco86572
- · Replies 6 ·
Undergrad Traveling faster than the speed of light?
- maxwilli06
- · Replies 43 ·
Graduate How do objects move if space is continuous and you must traverse infinite halves?
- jason651293
- · Replies 22 ·
Graduate Electromagnetic field in a medium
- Bob_for_short
- · Replies 5 ·
Graduate Does acceleration curve spacetime in a rotating disc?
- Naty1
- · Replies 6 ·
High School Time dilation b/c of Gravitaional field strength
- mars shaw
- · Replies 3 ·
Graduate What is the geometric interpretation of torsion?
- Terilien
- · Replies 14 ·
Graduate History of theories of motion; the role of inertia
- Cleonis
- · Replies 36 ·
Graduate Equation with Riemann curvature tensor
- paweld
- · Replies 1 ·
Graduate Distinguishing Curved Space vs. Coordinate Choices in Mathematics
- madness
- · Replies 6 ·
Undergrad Is there evidence that relativity contradicts Newton's 3rd law?
- aaryan0077
- · Replies 12 ·
Graduate Light beam speed in reference frames moving at relativistic velocities
- Pattonias
- · Replies 12 ·
Graduate Inverse Funcation of Relativistic mass
- Uncle6
- · Replies 3 ·
Graduate Equivalence between a Black Hole and travelling at the speed of light
- Pierre007080
- · Replies 62 ·
Undergrad What happens with a 'Light in a box theory'
- smokeee77
- · Replies 9 ·
Graduate Does forces travel faster than speed of light?
- matttan
- · Replies 8 ·
Graduate If gravity is spacetime curvature, how can it have a graviton or unify into a superforce?
- Fisicks
- · Replies 17 ·
Graduate How is singularity formed inside a black hole?
- yinfudan
- · Replies 5 ·
Graduate Is Relativity Really Relative? Clearing Up Confusion About Time and Light Speed
- BuddyPal
- · Replies 5 ·
Graduate Why acceleration exists in relativity but velocity to spacetime does not
- Cleonis
- · Replies 64 ·
Graduate What Are the Challenges of Force in Special Relativity?
- sadraj
- · Replies 3 ·
Graduate Is there something behind a horizon?
- JohnStanton
- · Replies 11 ·
Graduate Does General Relativity Affect Vertical and Horizontal Light Beam Speeds?
- Nickelodeon
- · Replies 6 ·
Graduate How Does Relativity Affect Time Measurement and Velocity Perception?
- rajeshmarndi
- · Replies 6 ·
Graduate Why do clocks moving relative to each other both appear slowed?
- daudaudaudau
- · Replies 5 ·
Graduate Can an object falling towards a super massive planet reach the speed of light?
- Goalie33
- · Replies 7 ·
Graduate Relativistic Force Transformations
- jackqpublic
- · Replies 26 ·
Graduate Is Light Truly Constant Despite Its Properties?
- smokeee77
- · Replies 38 ·
Graduate Sum of the angles in 4D coordinates system
- mars shaw
- · Replies 2 ·
Graduate Can the Ehrenfest Paradox Occur for a Rotating Body with Relativistic Speeds?
- vin300
- · Replies 14 ·
Graduate How Does Time Dilation Impact Space Travel Durations?
- matheinste
- · Replies 1 ·
Graduate Lorentz Transformation in New Coordinates
- soupdejour
- · Replies 3 ·
Graduate How can black holes actually ever exist?
- Matthew Opitz
- · Replies 12 ·
Graduate Is variation pricip for light-geodetic correct?
- archipatelin
- · Replies 8 ·
Undergrad Is there a name for this equation?
- Jaxodius
- · Replies 15 ·
Graduate Particle bunching +Lorentz contraction
- Austin0
- · Replies 11 ·