In this demonstration, you will explore how a three-dimensional torus (or donut) is Lorentz contracted when moving in arbitrary directions at various speeds. Use the cross hairs to choose the direction of motion (as indicated by the blue arrow) and the slider to choose the speed. Notice how different choices of parameters have different effects on the shape of the torus. To view the torus from multiple angles, click on and drag the graph to rotate the torus in three dimensions. You can also press the start button to run through a range of speeds and observe the torus gradually change shape (but note that rotating the torus is disabled while the animation is playing).
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