Special and General Relativity Forum

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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.
Undergrad Is Time Influenced by Mass and Matter?
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Graduate What is Feynman's excess radius for a black hole?
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Graduate Gravitons & Warping: Reconciling Extra Dimensions?
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Special and General Relativity
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Graduate Is there an analytical explanation for Einstein's famous equation E=mc^2?
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Graduate Can Gama Rays Escape a Black Hole?
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Graduate White Holes: Explaining How They Violate the 2nd Law of Thermodynamics
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Graduate Lorentz transformations derived using dimensional analysis?
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Graduate Benefits of time dilation / length contraction pairing?
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Graduate Time dilation effects on spinning object
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Graduate My Theory of Gravity: Mass Causes Time Dilation & Attraction
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Graduate Horizon for Constant Acceleration - Special Relativity
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Graduate Confused about Equivalence Principle
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Graduate Are Time-Traveling Photons a Real Scientific Concept?
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Graduate Behavior of a tangent light beam to an event horizon?
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Graduate Electromagnetic version of the positive energy theorem?
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Graduate Derivation of Wormhole Mouth Mass/Charge?
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Graduate Speedy ship flies through the sun
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Graduate Conceptual GR question (regarding orbit paths)
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Undergrad Special Relativity Time Travel to Future - Could You Watch the News on Earth?
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High School Gravity reaches across space and apparently reaches across time.
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Graduate Mass warping time, question/ interpretation
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Graduate Can Artificial Gravitational Fields Create Wormholes for Space Travel?
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Graduate The trivial constant force acceleration math
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Undergrad Explaining E=M C^2 to 14 year olds ?
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Graduate Understanding Penrose Diagrams - Insight & Explanation
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Undergrad Constancy of the speed of light
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Graduate [help]how to obtain gravity eqution from gravity field Action S?
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Graduate Twin Paradox (I know not again)
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Graduate What Happens to Light When a Flashlight Hits an Asteroid?
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Graduate The doppler radar trap paradox on the path to gravity.
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Graduate Does an observer on a carousel see a horizon?
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Graduate Are Scientific Equations Only Valid for Certain Scales in Physics?
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Undergrad A thing that confuses me (quasi-paradox)
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Graduate Significance of Special Relativity
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Graduate How Does Earth's Curvature Affect the Ratio of Gravity?
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Undergrad What causes the gravitational redshift phenomenon?
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Graduate Gravity: Time Dilation or Death
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Graduate What Makes the Speed of Light Constant in Special Relativity?
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Graduate Is General Relativity Based on General Relativity or Equivalence?
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Undergrad From Kepler's law to gravitation force
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Graduate Understanding SR: A Travelling Observer & Photons
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Undergrad Time as Dimension: Before & After Einstein's G.T.R.
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Graduate Compact Sapcetime and Time Travel
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Graduate Are Time and Space Independent of Objects?
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Graduate Is Gravity Truly a 3D Phenomenon?
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Graduate How Do FRW Coordinates Transform SR Effects in Cosmology?
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Undergrad Gravitational Time Dilation - Confused
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Undergrad Sun Bending Light: Gravity Warps Space-Time?
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Graduate Verify special relativity by concept light clock
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Graduate Is speed of time c, atleast for someone travelling at speed of light?
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Graduate Can We Really Travel Back to Our Own Past?
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Graduate Lorentz Transformation & Hyperbolic Angle in (2+1) Dimensions
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Graduate The Twin Paradox and Absolute Reference Frames in General Relativity
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Graduate What Are the Paradoxes of Special Theory of Relativity?
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Graduate Kerr metric, singularities in Boyer-Lindquist and Cartesian coordinates
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Undergrad Why Do We Use Arbitrary Units for the Speed of Light?
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Graduate Principle of Relativity and Constancy of Light
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Graduate The Mystery: The Truth about Time Shifts in Wormholes
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Graduate A little paradox in relativity.
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Graduate Length contraction: a question about tramwheels
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High School Is the speed of light a velocity or acceleration?
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Graduate Why is faster than light travel so bizarrely 'addressed'
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Graduate Magnetic Relativity: Does a Force Act?
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Graduate Why Does the Twin Paradox Not Prove Einstein's Relativity Wrong?
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Graduate What exactly is meant when people say that a Light Cone is tilting ?
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Graduate What is the Relationship Between Proper Time and Coordinate Time in Black Holes?
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Graduate Is there time at the speed of light?
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Undergrad Gravitational Force between two bodies when Distance is zero
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Graduate The Relativity of Simultaneity
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Graduate Kretschmann Scalar: Flat Spacetime & Singularities
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Graduate What Are the Limitations of the Balloon Analogy in Cosmology?
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Graduate Twistors but I don't think his projection created a compacted space
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Graduate Electromagnetic General Relativity
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Time Travel Theory: What Are Your Thoughts?
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Graduate How Light Travels Across Space at Velocity C
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Graduate Can a wormhole cause time to slow down and age differently for travelers?
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Graduate General theory of relativity space without ether is unthinkable
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Graduate Understanding the Stress-Energy Tensor
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Graduate Constant velocity vs accelerating source
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Graduate Why isn't gravity the result of a variable speed of light?
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Graduate EPR Paradox and implications for QM
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High School A question about special relativity,
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Undergrad Gravity and Energy: Mass, Velocity, and More
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Graduate What is the definition of a metric tensor?
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Undergrad Why Does Length Contraction Happen?
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Undergrad How Is the Inner Radius of an Accretion Disc Determined?
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Undergrad Can the Twin Paradox Be Proven?
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Undergrad Why Can't There Be Gravity in 2 Spatial Dimensions?
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Undergrad Cosmological Constant: Significance & "God" Particle
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Graduate A dark part of special relativity(at least for me)
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Graduate Spatial curvature in Schwarzschild & FRW
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Graduate Effect before Cause:absolute horizon
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Graduate SRT two observers will agree on their relative velocity
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High School Physics Q: Time If Everything Stops Except Clock?
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Graduate Vectors and the Speed of Light?
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Graduate Understanding Relativity: Explaining Inertial Mass and the Speed of Light
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Graduate What Defines Unstable Versus Unbound Orbits Around Black Holes?
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Graduate How Does Space Motion Affect Light Measurement Observations?
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Graduate A different take on the Schwarzschild Metric
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