A supertrain of proper length 210 m travels at a speed of 0.95c as it passes through a tunnel having proper length 74.0 m. How much longer is the tunnel than the train or vice versa as seen by an observer at rest with respect to the tunnel

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explanation:

their crystal patterns have been disrupted by stress

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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