B How Thin Can Speed Make Things? 2D Possibilities

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it is said that when something gets closer to the speed of light the flatter that thing will look when it pass the observer. i was wondering how flat that thing could look and could truly be 2D ?
 
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hsdrop said:
it is said that when something gets closer to the speed of light the flatter that thing will look when it pass the observer. i was wondering how flat that thing could look and could truly be 2D ?
Well, it can't get all the way to 0 thickness, so it is by definition 3D
 
You can make the measured length of an object arbitrarily close to zero by making it travel fast enough. It never reaches zero, though.

How it actually looks is a rather complicated topic for an object moving near the speed of light because the object moves a significant distance in the time it takes light to cross the object, so you see different parts of the object at different places along its line of travel. I gather it actually looks rotated, at least to a first approximation.
 
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thank you for the insite:partytime:
 

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