Special and General Relativity Forum

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 Possible Analogy for Objects Moving at C

  • Supercritical
  • · Replies 3 ·
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Graduate Metric tensor conversion and geodesic acceleration in McMahon's Relativity

  • mikah
  • · Replies 2 ·
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Undergrad How Can V Draw Space Time Curve

  • coolguysourab
  • · Replies 2 ·
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Graduate Space-Like Intervals: Can Events Effect Each Other?

  • Ed Quanta
  • · Replies 4 ·
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Graduate What is the meaning of topological black holes?

  • supakorn
  • · Replies 2 ·
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Graduate Warped Space or Gravitons: Which Theory Explains Gravity Better?

  • Simran737
  • · Replies 6 ·
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Graduate Unveiling the Non-Zero Components of Riemann Tensor for Schwarzschild Curvature

  • snoopies622
  • · Replies 3 ·
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Graduate Is Space Infinitely Small and Large Without a Medium?

  • nuby
  • · Replies 5 ·
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5

Undergrad Can Time Dilation from Special Relativity Unlock Superpowers?

  • Englishman
  • · Replies 9 ·
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9

Graduate Photon Acceleration: Speed, Mass & Emission

  • sinebar
  • · Replies 11 ·
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Graduate What properties of space determine gravity velocity?

  • Emu
  • · Replies 9 ·
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Undergrad Time Dilation: Einstein's Theory of Time-Shift

  • Belcher
  • · Replies 2 ·
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Graduate Light speed in relation to the size of the universe

  • sinebar
  • · Replies 4 ·
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Graduate Can Photons Travel the Same Path at Different Speeds?

  • y2kmisty2000
  • · Replies 3 ·
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Graduate A weird spherically symmetric metric

  • smallphi
  • · Replies 1 ·
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Graduate Negative Clock Readings: Compatible with Relativity?

  • bernhard.rothenstein
  • · Replies 5 ·
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Graduate Are Artificial Black Holes Created in the LHC Safe for Earth?

  • yuiop
  • · Replies 11 ·
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Graduate Gravity & Massless Particles: Why Does it Affect Photons?

  • alex.b
  • · Replies 2 ·
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Graduate Is there a gravitational equivalent to magnetism?

  • Ray Eston Smith Jr
  • · Replies 12 ·
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12

Graduate How Fast Does Gravity Travel to a Black Hole if the Sun Vanishes?

  • exponent137
  • · Replies 12 ·
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Undergrad Is motion relative to the size of an object

  • diZcomm1
  • · Replies 18 ·
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Graduate Little problem with group velocity

  • ziojoe
  • · Replies 1 ·
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Graduate Questions about acceleration in SR

  • Fredrik
  • · Replies 32 ·
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32

Graduate Does Traveling at Light Speed Eliminate the Dimension of Time?

  • mtworkowski@o
  • · Replies 8 ·
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Graduate 3 and 4 velocity and acceleration

  • yuiop
  • · Replies 10 ·
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Graduate In this scenario is faster then light speed possible?

  • smurfcatcher
  • · Replies 6 ·
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Graduate Gravity: Thoughts on Earth's Center Point

  • Phalid
  • · Replies 4 ·
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Graduate Geodesics in metric geometry and affine

  • pmb_phy
  • · Replies 7 ·
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Graduate Coordinate transformation and choice of a suitable coordinate system.

  • arroy_0205
  • · Replies 2 ·
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Graduate Why Do Black Hole Models Assume Singularities as Facts?

  • xlines
  • · Replies 4 ·
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Graduate Does acceleration cause time dilation?

  • kahoomann
  • · Replies 85 ·
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Undergrad Is There a Flaw in the Michelson-Morley Experiment?

  • mtworkowski@o
  • · Replies 69 ·
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Graduate Absolute Zero and time travel?

  • campal
  • · Replies 14 ·
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Graduate On GR and Interstellar exploration

  • owenhbrown
  • · Replies 4 ·
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4

High School Does Taking a Step Forward Affect Age Difference in Time Dilation?

  • Seinfeld
  • · Replies 2 ·
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Undergrad Is the Velocity of Light Truly Constant Regardless of Your Motion?

  • jmnance
  • · Replies 6 ·
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Undergrad Re: time-space Why the paradoxes of time? (CONFUSED)

  • jose
  • · Replies 10 ·
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Undergrad Can Inert Gases Exhibit Electric Activity in Our Atmosphere?

  • Gfoxboy
  • · Replies 28 ·
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Undergrad Question about Acceleration and Relativity

  • rhz_prog
  • · Replies 11 ·
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Graduate Does a moving clock really run slow or is time dilation an optical illusion?

  • Amith2006
  • · Replies 3 ·
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Undergrad Uncovering the Truth: The Michaelson-Morley Experiment and Earth's Motion

  • rab99
  • · Replies 10 ·
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Graduate Rest length in general relativity

  • jostpuur
  • · Replies 124 ·
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Graduate Are Space and Time Inseparable Aspects of Our Universe?

  • mkbh_10
  • · Replies 3 ·
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Graduate On The Ether Concept In Physics

  • cyberdyno
  • · Replies 5 ·
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Graduate Relative Moving Charge: Electric vs Magnetic Field

  • jmnance
  • · Replies 1 ·
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Graduate Measuring Light Speed & Slowing it Down with Matter

  • JKFlyguy
  • · Replies 13 ·
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Graduate The General Principle of Relativity

  • Chrisc
  • · Replies 19 ·
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Graduate Does Traveling at Light Speed Freeze Time?

  • JKFlyguy
  • · Replies 31 ·
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Graduate Could we say that velocity of light does not remain constant in time,

  • Ignition
  • · Replies 10 ·
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Undergrad Train A and B's Speed of Light Encounter: A Physics Question

  • RRR
  • · Replies 8 ·
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Graduate Was Einstein's Pursuit of Unified Field Theory Fruitful in His Final Years?

  • Wannabeagenius
  • · Replies 11 ·
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Undergrad Velocity of light remain costant in a gravitational field?

  • Ignition
  • · Replies 15 ·
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Graduate Speed of light - with observer experiencing gravity

  • rcgldr
  • · Replies 2 ·
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Graduate New Relativity FAQ: Understanding Mass in Special Relativity

  • pmb_phy
  • · Replies 20 ·
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Graduate Gravity Red Shift: Can it Happen?

  • Bob3141592
  • · Replies 6 ·
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Graduate Group theory and Spacetime symmetries

  • cesiumfrog
  • · Replies 1 ·
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Graduate Length of Meter Stick Near Event Horizon of Black Hole

  • snoopies622
  • · Replies 12 ·
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Undergrad Just a simple question about the speed of light and c^2.

  • lucien86
  • · Replies 7 ·
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Undergrad Who coined the term relativistic mass

  • pmb_phy
  • · Replies 2 ·
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Graduate Curved space-time and dimensions

  • Unkraut
  • · Replies 4 ·
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Graduate Pushing in the wrong direction

  • A.I.
  • · Replies 7 ·
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Graduate Worldline of photon in comoving coordinates.

  • yuiop
  • · Replies 18 ·
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18

Graduate Energy-momentum tensor for a scalar field (sign problem)

  • knobelc
  • · Replies 2 ·
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Graduate Wave Function in Lorent tranform

  • Leo_nic
  • · Replies 7 ·
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Graduate The very significant and positive result of the MM Exp

  • arbol
  • · Replies 8 ·
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Graduate Time dilation and the pioneer spacecraft

  • Freyman
  • · Replies 1 ·
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Graduate If tachyons existes, does they obey the transfomation relations

  • ghadir-jafari
  • · Replies 1 ·
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Graduate Is There a Non-QED Derivation of E=pc?

  • clj4
  • · Replies 18 ·
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Looking for a matter-energy equivalence animation with puzzle pieces

  • neh4pres
  • · Replies 1 ·
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Graduate Why Does the Ship's Twin Observe Earth's Clock Jump in the Twin Paradox?

  • Al68
  • · Replies 77 ·
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Graduate How Does Relativistic Motion Affect Star Brightness?

  • yuiop
  • · Replies 32 ·
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Graduate Wouldn’t time dilation govern a speed limit?

  • swerdna
  • · Replies 15 ·
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Graduate Charge of Black Holes: Measurability & Effects

  • ehj
  • · Replies 27 ·
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27

Graduate Temperature and special relativity

  • Marthius
  • · Replies 6 ·
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6

Graduate Proper time and Earth time for a relativistic rocket at 0.1 g

  • billdrix
  • · Replies 3 ·
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3

Graduate Is this tensor operation valid?

  • arroy_0205
  • · Replies 6 ·
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6

Graduate Can motion affect spectral signatures in a hydrogen-filled cube?

  • Chrisc
  • · Replies 13 ·
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13
  • Poll Poll

Graduate Gravitons or Warped Space-Time?

  • shadowpuppet
  • · Replies 40 ·
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Graduate Why not fewer visible stars in far away galaxies?

  • helix_angle
  • · Replies 8 ·
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8

Graduate Special relativity treatment of gravity?

  • Peeter
  • · Replies 25 ·
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25

Graduate How much does Earth's time dilation decrease with distance from the surface?

  • 403036387
  • · Replies 2 ·
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2

Graduate Can objects 'fall faster than c' in a gravity field?

  • Herbascious J
  • · Replies 22 ·
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22

Graduate Why Are Physicists Interested in AdS Black Holes Over de Sitter Black Holes?

  • supakorn
  • · Replies 2 ·
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2

Graduate Accelerating universe = conservation of energy?

  • Denton
  • · Replies 4 ·
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4

Graduate Question on Einstein's Simple derivation of Lorentz Transformation.

  • Peeter
  • · Replies 2 ·
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2

Graduate Acceleration or gravitational time dilation the same?

  • rcgldr
  • · Replies 35 ·
2
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35

Graduate How Do We Measure Distance to Stars and Galaxies?

  • Wizardsblade
  • · Replies 2 ·
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2

Undergrad Gravity: Speed of Light & Black Holes

  • nuby
  • · Replies 68 ·
3
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Graduate Absolute simultaneity with Einstein synchronized clocks?

  • bernhard.rothenstein
  • · Replies 3 ·
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3

Graduate Solving Curvature Tensor of Paraboloid Problem

  • snoopies622
  • · Replies 7 ·
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7

Graduate Forumulation of field equations

  • captain
  • · Replies 1 ·
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1

Graduate Geodesics and stretched strings

  • oldman
  • · Replies 29 ·
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29

Graduate Understanding the Nature of Gravity and its Relationship to Energy Creation

  • shamrock5585
  • · Replies 6 ·
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6

Graduate Drawing Penrose diagram figures

  • Neptusoft
  • · Replies 1 ·
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1

Graduate Is Special Relativity Incomplete Without Considering Intrinsic Momentum?

  • Goccam
  • · Replies 10 ·
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10

Graduate Special Theory and String Theory.

  • D.A.Peel
  • · Replies 6 ·
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Graduate Are relativistic effects real ?

  • stillwonder
  • · Replies 71 ·
3
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Graduate Clarification on the consistency of light speed

  • Ransom
  • · Replies 25 ·
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25

Undergrad Einsteins Genius Derivation: E=mc^2 and the Concept of Light as Matter

  • shamrock5585
  • · Replies 11 ·
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11

Graduate Why does the moving clock show less time in the 1971 Hafele-Keating experiment?

  • shinta
  • · Replies 2 ·
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2