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
Undergrad Matter to Energy: Kinetic + Rest Mass?
- Shark 774
- · Replies 8 ·
Graduate Space-Time Curvature: A New Perspective on Dark Matter?
- Grieverheart
- · Replies 6 ·
Graduate Rotation tensor and absolute time
- fishnchips
- · Replies 4 ·
Graduate Space time reversal inside a black hole
- wasphysics
- · Replies 18 ·
Graduate Lorentz transformed pressure for a rod with two masses at its ends
- zn52
- · Replies 6 ·
Graduate In General Relativity, what would happen to the Earth the Sun disappeared?
- MegaDeth
- · Replies 5 ·
Graduate Higgs field at the event horizon
- Antiphon
- · Replies 5 ·
Graduate Equivalence priciple, light bend
- tomz
- · Replies 7 ·
High School Did David Hilbert beat Einstein to Relativity?
- kramer733
- · Replies 5 ·
Undergrad Did Lorentz or Einstein theoretically derive special relativity?
- zheng89120
- · Replies 92 ·
Graduate No real purpose in space-time?
- mixinman7
- · Replies 37 ·
Graduate Time dilation and twins paradox
- Volcano
- · Replies 21 ·
Graduate Is the graviton an exact object in general relativity or just an analogy?
- mersecske
- · Replies 9 ·
Graduate Light bent in gravitational field
- tomz
- · Replies 1 ·
Graduate Blackhole mass = Hawking temperature x Entropy?
- johne1618
- · Replies 2 ·
Undergrad What exactly is relativistic mass?
- TheJoninator
- · Replies 17 ·
Graduate Simultaneity question – is sequence absolute?
- rede96
- · Replies 18 ·
Graduate Weyl Tensor Notation in Dimension 4
- jfy4
- · Replies 3 ·
Graduate How Can Massless Photons Be Affected by Gravity in Black Holes?
- Cosmo Novice
- · Replies 4 ·
Graduate My paradox, dead or not according to different observers
- ppppppp
- · Replies 26 ·
Graduate Can time dialation really just be the slowdown of physical processes?
- ItsDaveDude
- · Replies 70 ·
Graduate Curvature of space/time question/problem
- curtmorehouse
- · Replies 5 ·
Undergrad How would a trampoline solve the twin paradox in relativity?
- BobSanchez
- · Replies 6 ·
Graduate Parallel velocity hydrogen/antihydrogen annihilation at relativistic speeds.
- danR
- · Replies 14 ·
Graduate Age divergence of Identical accelerating twins
- kmarinas86
- · Replies 2 ·
Graduate What happens to clocks in outward-curved spacetime?
- Negeng
- · Replies 4 ·
Graduate How could strange shapes affect space-time?
- Negeng
- · Replies 13 ·
Graduate Confusion with lower/raising indices
- vaibhavtewari
- · Replies 24 ·
Undergrad Is kinetic energy greater in the center of mass frame?
- sukho
- · Replies 12 ·
Graduate Derivation of the Lorentz Transformations
- NanakiXIII
- · Replies 16 ·
Graduate Schwarzschild metric radial coordinate and distance terms
- Laserbeam
- · Replies 7 ·
Graduate Speed of light in non-inertial frames and sudden frame transitions
- lovetruth
- · Replies 12 ·
Graduate Light Clock Experiment - questions from a newbie?
- pd3000
- · Replies 9 ·
Graduate Stress energy tensor for a swarm of particles ( in MTW )
- zn52
- · Replies 5 ·
Undergrad Gravitational Acceleration in Homogeneous Fields
- jensel
- · Replies 2 ·
Graduate Approximate Space Physics for Online Game
- dylankarr.com
- · Replies 10 ·
Graduate How Does Matter Cause Space to Curve?
- menniandscience
- · Replies 3 ·
Graduate Variation of cosmological constant with time
- kalish
- · Replies 3 ·
Graduate Special theory of relativity question
- lovetruth
- · Replies 64 ·
Graduate Your photonic rocket reaches planet A, 10 light-years away in 10 years.
- danR
- · Replies 14 ·
High School Can We Really See the Past Through Science?
- terencesiu
- · Replies 7 ·
Graduate Why must the electromagnetic tensor be gauge invariant?
- ZealScience
- · Replies 5 ·
Graduate Lorentz factor and Bondi factor
- peterpang1994
- · Replies 4 ·
Undergrad Does Light Reach Objects Moving at High Speeds?
- themaster1j
- · Replies 4 ·
Graduate Hints for MTW exercises 3.18 and 5.1
- zn52
- · Replies 4 ·
Graduate Can conservation laws be deduced from the Einstein field equations?
- Alain De Vos
- · Replies 4 ·
Graduate Question relating to the Ehrenfest Paradox
- Hansiman
- · Replies 12 ·
Graduate Why is the speed of light independent of a frame of reference?
- drudkh
- · Replies 52 ·
Graduate Can you rip the space time fabric?
- Gravitons
- · Replies 50 ·
Graduate Lorentz Transformation Limit: Proving U=c
- SprucerMoose
- · Replies 3 ·
Graduate Is Ether the Missing Piece in Understanding Space Warping?
- Buckethead
- · Replies 14 ·
Graduate Is the water flat or concave in Newton's bucket paradox?
- novop
- · Replies 22 ·
Graduate Why is the relativistic mass a rejected concept?
- kmarinas86
- · Replies 106 ·
Graduate Removing Extraneous Factors from Einstein Action
- praharmitra
- · Replies 2 ·
Graduate On why massless particles move at the speed of light
- PAllen
- · Replies 7 ·
Graduate Physical definition of inertial reference frames
- Goldbeetle
- · Replies 14 ·
Graduate Why is mirror separation constant in the train light experiment?
- 3029298
- · Replies 7 ·
Graduate Potential term transformation under Galilei transformations
- haushofer
- · Replies 3 ·
Undergrad Does the Moon's gravity affect the Earth's gravity in a satellite's trajectory?
- Deadstar
- · Replies 6 ·
High School Speed of Light: Does Relative Motion Affect It?
- lederhosen
- · Replies 3 ·
Graduate Is energy truly conserved globally in an expanding universe?
- zaybu
- · Replies 9 ·
Graduate Why does gravity have to be non-linear?
- Jonathan Scott
- · Replies 33 ·
Graduate Why doesn't quantum theory mention acceleration like general relativity does?
- grelf
- · Replies 1 ·
Graduate Does an object at rest in space experience time faster than moving objects?
- SeaJay
- · Replies 6 ·
Graduate Is mass conserved by mathematical identity?
- Phrak
- · Replies 9 ·
Undergrad Difference Between Newton and Einstein
- nhmllr
- · Replies 1 ·
Graduate How do you find the Hodge dual of F using the black hole metric?
- praharmitra
- · Replies 3 ·
Undergrad Why Does Light Bend Away From the Sun?
- Carnivroar
- · Replies 6 ·
Graduate Quadropole Formalism: Necessary Condition?
- mersecske
- · Replies 4 ·
Graduate Parallel bars in Levi-Civita symbol in MTW exercise
- zn52
- · Replies 8 ·
Graduate Can synchronized clocks reveal absolute simultaneity and motion?
- Fiziqs
- · Replies 3 ·
Graduate Determining who measures Proper Time and Length
- ja_tech
- · Replies 5 ·
Graduate Deriving the Lorentz transformation substitution
- Nanas
- · Replies 4 ·
Graduate Gravitational Waves and Speed of Light
- cbd1
- · Replies 21 ·
Graduate Twin paradox alone kills special relativity
- kenn2010
- · Replies 9 ·
Graduate Does the shape of the Universe contribute to the gravitational path?
- lsimpson1943
- · Replies 6 ·
Graduate Tidal forces near a black hole
- praharmitra
- · Replies 1 ·
Graduate Perfect Fluid Energy Stress Tensor
- alejandrito29
- · Replies 1 ·
Graduate Arbitrary rescaling of rapidity; work-KE theorem in SR
- bcrowell
- · Replies 12 ·
Graduate Minimal coupling non minimal coupling
- kalish
- · Replies 2 ·
Graduate Does relativistic mass increase or decrease in a gravitational field?
- edguy99
- · Replies 22 ·
Undergrad Is light eternal if time stops at light speed?
- Carnivroar
- · Replies 4 ·
Graduate Relativistic Force: Transforming Forces Between Reference Frames
- Lostinthought
- · Replies 1 ·
Graduate Gravitational time dilation implies energy change?
- johne1618
- · Replies 35 ·
Graduate Can antimatter black holes explain matter-antimatter imbalance?
- Khashishi
- · Replies 4 ·
Graduate Why do objects moving at the speed of light appear smaller?
- Glynis
- · Replies 22 ·
Undergrad If we go to space with the speed of 40000 km/hr and spend almost 5 yrs
- bodhi
- · Replies 6 ·
Graduate Time Sync Problems: Answers to Questions on Moving Train Synchronization
- whereisnomar
- · Replies 4 ·
Graduate Derivation of Lorentz invariant
- ralqs
- · Replies 3 ·
Graduate Proper lorentz transformations
- Lostinthought
- · Replies 3 ·
Undergrad How do you calculate the speed of a particle given its Total and Kinetic energy?
- j2dabizo
- · Replies 12 ·
Graduate How do find out gravitational pull according to GR?
- jinchuriki300
- · Replies 1 ·
Graduate Why can the speed of light be set to 1 in Minkowski spacetime?
- lsimpson1943
- · Replies 8 ·
Graduate Can something gradually exerting force escape a black hole's gravitational pull?
- Good4you
- · Replies 14 ·
Graduate How can anything cross the event horizon of a BH?
- Fiziqs
- · Replies 8 ·
Graduate Does spaghettification occur around a super massive black hole?
- Negeng
- · Replies 10 ·
Graduate Schwarzschild radius question.
- Katamari
- · Replies 3 ·
Graduate Measuring Metric Tensor: Apriori Specification or Geometric Object?
- Dale
- · Replies 2 ·
Graduate Physical laws and tensor formulations of them
- McLaren Rulez
- · Replies 7 ·
Graduate Velocity of particle waves in an object?
- David Burke
- · Replies 7 ·