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 Faster than speed of light spaceship.
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Undergrad Why can't we see the light before we turn on the bulb?
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Undergrad Can Two Spaceships Perceive Faster-Than-Light Speeds Relative to Each Other?
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Undergrad What is Albert Einstein's Theory of Spacetime?
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Undergrad Is acceleration relative? (In the same way that velocity is)
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Undergrad Time Dilation: 1.25yr Trip at 2.40x10^8m/s
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Undergrad Do Gravitating Bodies Warp the Fabric of Space?
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Undergrad Layman in search of help understanding relativity
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Undergrad In Ensteins theroy of gravity.when a cannon ball is fired up,it
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Undergrad Relativity & Heat: Does Speed Increase Heat Needed?
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Undergrad How does motion affect the potential energy of a spring?
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Undergrad Challenge to the 1st postulate
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Undergrad Understanding Mass-Energy Equivalence to Fdx and dm in E=mc^2
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Undergrad Why aren't you accelerating when you fall
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Undergrad Is there such a thing as the Null Speed in the concept of motion and relativity?
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Undergrad Do gravitational waves have different frequencies?
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Undergrad Is Einstein's Theory of Relativity Flawed?
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Undergrad Understanding Gravity: Properties & Effects
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Undergrad Relative Velocity of two particles
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Undergrad If you were out in space, motionless
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Undergrad Time Dilation: How Can a Watch Tick Slower?
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Undergrad What's it like if I were standing on earth's axis?
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Undergrad Scenario allowing a signal to travel at superluminous speeds?
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Undergrad What exactly is Einstein's famous E = MC^2
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Undergrad Why is E=pc with Light's Zero Rest Mass?
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Undergrad Do All Wavelengths of the EM Spectrum Have Photons?
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Undergrad Time dilation in relation to earth time
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Undergrad Is the Speed of Light Really Constant in a Vacuum?
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Undergrad Understanding the Massless Photon
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Undergrad Single Body Gravitation in a Universe with Only One Planetary Body
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Undergrad E2 - p2c2 = m2c4 - Meaning of symbols
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Undergrad General Physics Help - Questions on E=mc^2 & Train Mass at Light Speed
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Undergrad Time Dilation on a Merry Go Round
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Undergrad Relativistic Energy of a Ball: Understanding the Equivalence of Mass and Energy
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Undergrad I've gone faster than the speed of light, havent you?
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Undergrad The Fascinating Movement of Andromeda Galaxy: Impact on Mass and Time?
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Undergrad How Does Bert Experience Time Differently While Traveling to Alpha Centauri?
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Undergrad Question About The Expansion of The Universe And Time
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Undergrad Bullet from a moving train kinda
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Undergrad Intro to Basic Tensor Notation: I'm Confused!
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Undergrad How Does the Twin Paradox Affect Aging in Relativity?
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Undergrad Are photons affected differently by gravity?
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Undergrad Understanding Emergent Gravity & Spacetime: Resources for Laypeople
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Undergrad Orbiting around an object of variable mass
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Undergrad What Would the Rocks Be Rotating With Respect To in Newton's Thought Experiment?
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Undergrad Does Mass disappear and become Energy?
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Undergrad Can You Move Faster Than the Speed of Light on a Spaceship?
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Undergrad What is the difference? special&general
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Undergrad Light clock moving to demonstrate time dilation
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Undergrad Density Formula for Moving Particles
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Undergrad Is Time Multi-Dimensional Like Space?
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Undergrad How is the Speed of Light Formula Derived and Why is it Squared?
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Undergrad Why Did Einstein Use the Speed of Light in E=mc²?
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Undergrad How do we determine one clock is better?
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Undergrad Getting close to Speed of light
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Undergrad Why the pythagoras theorem is used in the second equation?
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Undergrad Red or Blue Shift: Moving Light Sources Forward/Backward
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Undergrad Mass Energy Equivalence and Kinetic Energy
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Undergrad Is it Possible to Attain the Speed of Light by Combining Two Half-Speed Bodies?
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Undergrad Move one, How long does it take for another one to move?
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Undergrad Deriving t=T/√(1-v²/c²) in Special Relativity | Patent-Invent
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Undergrad Light Speed & Acceleration: Is it Instantaneous?
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Undergrad What is Special Relativity and how does it work?
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Undergrad How Can Time Be Relative While the Speed of Light Remains Absolute?
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Undergrad Can any celestal body or anything rotate at speed of 90 degree
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Undergrad Spinning Universe: Is Centripetal Acceleration the Cause of Expansion?
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Undergrad Weight, Acceleration, Gravitational Equivalence
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Undergrad What is the Einstein Velocity Addition Formula and How Does It Work?
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Undergrad Understanding Mass from Different Observers
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Undergrad Why Speed of Light Can't Be Exceeded?
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Undergrad What Causes the Attraction and Repulsion of Current-Carrying Wires?
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Undergrad Einsteins light beam Lets go for a ride again
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Undergrad Length Contraction Documentary
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Undergrad Dispute over basic relativity question
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Undergrad What Are Higher Dimensions and How Do They Affect Our Everyday Lives?
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Undergrad Mass-Light Conversion: How Much is Lost?
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Undergrad Will time stop if we were able to go as fast as the speed of light?
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Undergrad What Does Einstein's Space-Time Theory Reveal About Observing the Universe?
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Undergrad Travelling faster than the speed of light?
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Undergrad Is Time Slower or Faster Inside a Moving Train?
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Undergrad Progression of time when velocity is very high
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Undergrad Gravitaional field can store mass?
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Undergrad Understanding Gravity: My Questions on Proven Facts and Debunked Theories
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Undergrad How Far Would You Travel at Light Speed from Your Perspective?
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Undergrad Oh my God is the Catholic Church right?
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Undergrad Is Energy-to-Mass Conversion Possible According to E=mc²?
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Undergrad Is Potential Energy Absolute or Relative?
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Undergrad How Quickly Does Pluto Respond to Changes in the Sun's Gravity?
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Undergrad Teleportation (like a StarGate) and Time travel
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Undergrad Gravity & Time: Is Time Different at 17000 MPH?
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Undergrad How does the Twins Paradox challenge our understanding of ageing?
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Undergrad Lorentz Transformation (simplified)
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Undergrad Can You See Humans Glow on the Dark Side of Earth from a Fast Rocket?
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Undergrad What is the Minimum Speed in Relativity?
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Undergrad Why do objects appear shorter and clocks run slower in space stations?
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Undergrad Why must we travel through something at C?
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Undergrad Can molecules exist in other dimensions?
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Undergrad Understanding the Speed of Light: A Thought Experiment
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Undergrad If light has no mass, how can it have energy according to e=mc2?
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Undergrad History & Timewarp: Does Time Change Earth's History?
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