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When we moving in a car, why do we see nearby things moving fast, while the distant things are moving slow?
When a person is sitting in a car, the object nearby or close to the car appears to move very fast because the line of sight for the object closer to the car is very small and therefore, they move very fast.
On the other hand, objects like trees, mountain or some houses that are very far away appear to move slowly because of the large line of sight for the farther objects.
Therefore, the nearby things appear to move fast whereas the things at a larger distance appear to move slowly in the backward direction.
A line of sight is a line between two points, from an observer's eye to a distant point, or propagation of light wave travelling in a direct path from the source to the receiver.
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