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Foolproof
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this post was submitted on 19 Mar 2025
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It's less the motion of the atmosphere that causes the distortion, but rather differences in its temperature and hence the density of the air, which causes differences in the refraction index of the air along the way of the light.
The variable refraction index makes it look like the atmosphere is moving though.
But that's the effect of the light not going in a straight line and not the cause of it.