The rolling shutter effect makes this propellor look like it’s rotating at nearly the speed of lightpic.twitter.com/ZhBLs1hgeG
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Compare with this simulation of wheels rotating near the speed of lighthttps://twitter.com/inertialobservr/status/1175593210833297408?s=21 …
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I actually don’t think this is coincidence .. rolling shutters scan the entire image very quickly instead of capturing all at once it’s actually easy to see how this can then give the appearance of a time-lag between light rays gonna have to think about this more..
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I think they look similar because the rolling shutter introduces a spatially dependent time delay across the image—in the finite light speed simulation, a similar spatially dependent time delay arises from certain parts of the wheels being farther away.
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Exactly! Well said.. I’m trying to work out the more precise math to see hire similar they are in terms of observation but it’s getting late
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But the wheel is distorted due to the motion of its parts with reference to the observer, right? And the prop is just distorted according to the y-axis. So it’s not really related.
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no the wheel is distorted because of (1) length contraction and (2) the finite speed of light .. the rolling shutter creates a spatially dependent differential time lag, in a very similar way that the finite speed of light does
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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