Special and General Relativity Forum

Undergrad E=MC2 energy must contribute to the force of gravity

Graduate Why does light pass a rocket at c despite relativistic time dilation?

Graduate Could someone me get my mind around this paradox

Graduate Gravity and massless particles?

Graduate Can electromagnetic fields produce space-time curvature?

Graduate How Do GPS Satellites Adjust for Both Special and General Relativity Effects?

Undergrad Mass vs. Gravity and what our teachers have told us

Undergrad Does kinetic energy add mass, and what happens to it when the object stops?

Undergrad Is the word motion used in relativity?

Undergrad Why isn't freefall based on the mass of the object falling?

Graduate Do All Observers Agree on the Timing of Events in Relativity Experiments?

Graduate Can dark matter form from matter accelerated near light speed?

Graduate Is the Schwarzchild Metric Accurate in Predicting Black Holes?

High School What does E=mc² actually imply?

Undergrad Is Time Travel Possible with Differential Spatial Motion?

Undergrad Foundation to the theory of relativity

Undergrad Are Time Dilation and Length Contraction Proven by Experiments?

Graduate Does Gravity Pass Through Barriers?

High School What Causes Gravity to Attract Objects?

Graduate What Happens to the Twins in the Twin Paradox with Acceleration?

Graduate Does distance between two bodies have meaning in general relativity?

Graduate Is Energy Conserved in General Relativity?

Graduate Time Dilation and Synchronization in Special Relativity

Undergrad Theory of relativity sets limits

Graduate Physical meaning of non-metric-compatible connections in GR

Graduate The Equivalence Principle-bending of light

High School How long till we can travel into the future?

Undergrad Gravitation Questions: Introduction and Theory by Allen

Graduate What is the relationship between energy, matter, and space-time?

Undergrad Michelson-Morley experiment method and ether

Undergrad Can someone explain the twin paradox to me

Undergrad Relativity vs Newtonian Physics

Undergrad Have any of Einstein's theories been replaced or superseded?

Graduate Why does the traveling twin age less if both see each other's time slow?

Graduate Special relativity and frames of reference

Graduate Does Time Dilation Apply to Objects Moving at Sub-Light Speeds?

Graduate Was Einstein's claim about light speed in flat gravitational fields accurate?

Undergrad Can photons change direction or slow down near a black hole?

Graduate How can the universe expand faster than light if nothing can exceed c?

Graduate Ok lets say there is a ship 100ft long moving at .90c. a planet

Undergrad Does relativistic mass increase in everyday motion like driving a car?

Graduate Does the centre-of-mass frame count as preferred in general relativity?

Graduate Wikipedia's article on black holes

Graduate Special Relativity handling acceleration

Graduate Strange implications of NASA's Gravity Probe B

Undergrad How do I calculate the area of a circle drawn on a sphere?

Graduate Wormholes mean changes to Relativity?

Undergrad Understanding Relativity: A Quick Overview of General and Special Relativity

Graduate Question on the age of universe

Graduate Is Time Dilation a Measurement Phenomenon?

Graduate Why Can't a Uniform External Gravitational Field Raise Tides on Earth?

Graduate Does time dilate during the big bang's exponential expansion?

Graduate Einstein's warping of space-time as a theory of gravity

Graduate Increasing mass, decreasing force?

Graduate The Peripatetic Albert, Round 3

Graduate A quickly oscillating mass produces a gravitationnal wave

Graduate The Soccer Ball Problem in Relativity

Graduate Whatever happened to testing relativity?

Graduate Some thoughts I've been thinking about.

Graduate Is time a real element of the universe or just a tool for ordering events?

Undergrad Kinetic energy of one particle as measured by another

Undergrad Is There a Place in the Universe That is Truly at Rest?

Graduate What If the Speed of Light Were No Longer Constant?

Graduate Special Relativity in an (in)finite universe

Undergrad Einstein's Theory of Mass-Energy Conversion: True or False?

Graduate Converting Energy into Matter: Is it Possible?

Graduate Do clocks measure time or something else?

Graduate Can tachyons exist without violating causality?

Graduate Where did the extreme temperature and pressure for the big bang come from?

Undergrad Why Isn't the Universe Just a Big Black Hole?

Graduate Most common error in anti-relativity arguments

Graduate Binary pulsars and general relativity

Graduate Michelson Morley and Paul Marmet

Graduate How Does Relativistic Doppler Shift Affect Emitted Waves and Mass?

Graduate Relativity for people who insist on having a true physical time

• Poll

Graduate Is Time Dilation Just a Misunderstanding?

Graduate How does speed affect perceived time in David W. Hogg's SR Book?

Graduate Can an observer catch the infalling matter surface in a collapsing black hole?

Graduate String-mass near the speed of light

Graduate Hovering in gravity makes curved space flat?

Undergrad Why are the fundamental postulates of special relativity controversial?

Graduate Quantum blended with a little SR

Graduate Christoffel symbols in the Schwarzschild metric

Graduate How Small Could the Universe Get in a Big Crunch?

Graduate What are some suggestions for books on general relativity at the graduate level?

Undergrad Does the Earth rise to meet falling objects in general relativity?

Graduate What causes the bending of space and time by concentrations of mass and energy?

High School Can the equation E=mc^2 be used as a measurement tool?

Graduate Is length contraction relative or absolute?

Graduate A New Test of the Equivalence Principle?

Graduate Maxwell equations and special relativety

Graduate Do relativistic broadcasts play faster or slower when moving toward or away?

Graduate Can an astronaut actually reach the singularity of a finite lifetime black hole?

Graduate Does length contraction let us see more of the universe at near-light speed?

Undergrad Solving Problem 2-8: Relative Velocity and Time Elapses