Special Relativity Effects
Interactive simulation of time dilation, length contraction, and relativistic physicsContracted Length: 10.00 m
Dilated Time: 1.00 s
Relativistic Momentum: 0.00 mc
Time Dilation: 0%
Stationary Frame Moving Frame
Stationary Age: 20.0 years
Traveler Age: 20.0 years
Spacetime Geometry
Special relativity reveals that space and time are interconnected in a four-dimensional spacetime fabric. Moving observers measure different lengths, times, and even the order of events depending on their relative motion.
Moving clocks run slower relative to stationary ones. GPS satellites must account for this effect.
Objects appear shorter in the direction of motion when moving at relativistic speeds.
Events that are simultaneous in one frame may not be simultaneous in another moving frame.
Relativistic Phenomena
Traveling twin ages slower due to time dilation during acceleration phases.
Mathematical framework connecting space and time coordinates between frames.
E = mc² - energy and mass are different forms of the same thing.
Light aberration and Doppler shifts at relativistic speeds.
The Postulates of Special Relativity
The laws of physics are the same in all inertial reference frames. No experiment can detect absolute motion.
The speed of light in vacuum is the same for all observers, regardless of their motion or the motion of the light source.