Become a game show contestant in this online activity from A Science Odyssey and ask a series of questions to a panel of mystery scientists, using the answers to determine which scientist is Einstein.

A representation of Minkowski spacetime diagrams using graph paper that is rotated, showing the world lines of three stationary observers with light clocks.

Manipulate variables in order to observe the effects of relative motion on events such as an explosion and the time at which its light signal reaches a destination.

Graphical visualization of how the relative motion of two events affects their spatial and temporal separation in special relativity.

This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...

Simulation examining simultaneity and causality in special relativity by manipulating the space and time coordinates of one or two events.

A simulation of a well-known special relativity experiment of Einstein's, involving a train and a tunnel. Velocity and tunnel length can be altered to observe the effects.

A model for examining the simultaneity of two events where the relative velocity and the wave source, either light or sound, can be manipulated.

This model permits manipulation of variables in order to observe the effects of time dilation on twin objects, one moving and one not, as shown in a spacetime diagram.

Simulation showing how relative motion affects event order in special relativity. Manipulate the relative speed of two simultaneous events and observe the results.