Doppler: Use default Always on Always off Absolute positions: Use default Always on Always off Apparent positions: Use default Always on Always off Debug mode:

You need a browser that supports canvas to view this simulation.

Firefox 3.6+, a recent version of Google Chrome, Safari 4+ or Opera 10+ are recommended.

Firefox 2+, any version of Google Chrome, Safari 3.2+, Opera 9+ and IE8 should work with some missing features.

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Keyboard Controls

w, a, s and d, or arrow keys

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q, e

Rotate left and right (yaw)

3

Show 3D view

t

Toggle clock display

p

Toggle coordinate display

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h

Toggle help screen

Press Next to advance to the next step in a demonstration.

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Welcome to the jsphys relativity simulator. Choose a demonstration to start with and hit Play.