Special and General Relativity Forum

Graduate Gravity bends spacetime, does the amount of lightray-bending correlate?

Graduate Why aren't different observations of the same event simply optical illusions?

Graduate How to reduce Einstein's equation for perfect fluids

Graduate Question about length contraction.

Graduate Paddlewheels in a gravity well and angular momentum

Graduate Measuring distances between a moving object and a stationary object using light

Graduate Understanding Time Dilation: Explaining the Constant Speed of Light

Undergrad Why do clocks tick slower near massive objects like earth ?

Graduate Relativistic Mass and Volume Change in a Rapidly Expanding Sphere

Graduate Approaching Speed: Is it Different for Photons?

Graduate Does GR Consider Angular Momentum & Rotational Stress?

Undergrad What would happen if a poked someone with a million-mile-long stick?

Undergrad Gravitational Attraction & Conservation of Energy

Graduate Time Dilation: Concepts of Modern Physics by Beiser

Graduate How does the time dilation is being measured using atomic/quartz clocks?

Undergrad Basic question about inertial reference frame

Graduate Is Time Compression really possible? Or is it just nonsense?

Graduate Special Relativity defined without reference to light

Graduate Does the Pole-Barn Paradox Challenge Einstein's Theory of Relativity?

Undergrad What is the reputable function for time dilation in special relativity?

Graduate Relative motion and accumulated time dilation

Graduate EFE: Why is there a curvature tensor and curvature scalar?

Graduate Bodies of mass near the Schwarzschild Radius

Graduate Does the speed of moving object curve spacetime?

Graduate Is reverse time dilation posssible?

Graduate How Can the Relative Speed of Photons Exceed the Cosmic Speed Limit?

Graduate Paradoxes in relativity, and an absolute reality

High School How Does Space-Time Curvature Cause Objects to Return to Earth After Jumping?

Undergrad Could a Person See Object Moving at Light Speed?

Graduate What exactly is Time Dilation?

Graduate Linearised Gravitational Waves Derivation

Graduate Changing magnetic field causing current.

Graduate Quick question on Special Relativity

Graduate Is Light Intelligent? Speed of Light & Quantum Phenomena

Undergrad List of things nearing the speed of light

Graduate What is the constant C for Hodge dual in tensor notation?

Graduate Einstein's Concept of Individual time

Graduate Hoax? The works of Niels Bjern

Graduate Is the inertial mass of light relative?

Undergrad Viewing an object with the naked high at near light speeds

Graduate Can a Neutron Star Become a Black Hole Due to Relativistic Effects?

Undergrad Would a moving scale read more than a scale at rest?

Graduate Can Interferometers Measure Gravitational Waves Despite Being Made of Matter?

Graduate Lemaitre Coordinate from the E-F coordinate

Graduate The Spaceship and The Wrench (1/2 + 1/2 = 4/5)

Undergrad Need help understanding inertial frames of reference

Graduate Morley-Michaelson Experiment & Aether Rigidity

High School How important was Einstein, really?

Graduate Effective mass of gravitational waves

Graduate Is it possible to get rid of the B field entirely?

Graduate Is It Possible to Define a Clock Rate as c in Relativistic Frames?

Graduate Found a way around relativity of simultaneity

High School Spinning faster the the speed of light

Graduate Explaining Incompatibility of Electrodynamics & Special Relativity

Graduate Momentum of light in gravity field and other mediums

Graduate What happens to matter that was inside an event horizon before the collapse?

Undergrad Rocket Velocity: γ = 4, v = √15/4c

Undergrad Is particle speed affected by source?

Graduate Visit With Paul Davies on Block Time

Undergrad Noob question about relativity

Graduate How Weight of Flywheel Changes in a Gravity Well

Graduate Events for frame changing clocks

Graduate Speed of the light and time dilation

Graduate Question about distance units in relativity

Undergrad Want to learn about special relativity?

Graduate Basis vectors and abstract index notation

Graduate Can Exceeding the Speed of Light Really Mean Time Travel?

Graduate Understanding Time Dilation in Special Relativity: Separation and Relative Time

Graduate At rest in Einsteinian relativity

Graduate Travelling to the future (paradox)

Graduate Two-body problem in general relativity

Undergrad Implications of the Mass-energy equivalence

Graduate Is there a more beginner-friendly book to learn General Relativity?

Graduate Relativity & Surroundings: Train within a Train Theory

Graduate Gauge Transformation: Coulomb to Lorentz

Graduate Generalization of Netwonian gravity - Jefimenko's theory of gravitation

Graduate Is Principle of Relativity compatible with Magnetic force

Graduate How inertial frame of reference differs from non-inertial frame?

Undergrad Is true or is it another pseudoscience crap

Graduate Calculating speed of spacetime

Graduate General Relativity: Gravitational-Red Shift Confused with Doppler Effect?

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Graduate In virtue of what are energy and momentum additive?

Graduate Ricci tensor for electromagnetic field

Graduate The terms absolute and relative

Graduate How to caculate the inverse metric tensor

Graduate Limit to length of expanding spring?

Graduate Conservation of Energy in Friedman Equation

Graduate Does a 2 Light-Year Long Steel Bar Move Instantly When Pushed?

Graduate Euler Lagrange equation as Einstein Field Equation

Graduate What is the relationship between light rays and the equations of motion in GR?

Graduate Possible 3rd Interpretation of the Michelson-Morley Experiment

Graduate Travelling faster than the speed of light - SR

Graduate Traveling Info: Images, Photons, Speed of Light

Graduate Gravitionel redshift – How is it working?

Graduate Special relativity and photon dimensionality

Graduate Rigid body angular velocity limit

Undergrad Is acceleration relative or absolute?

Graduate Is Time Truly Absolute? Investigating Through Thermodynamics

Graduate Is the Sum of Christoffel Symbols Equal to Their Negative in Tensor Calculus?