Spatial perception On a street in the plane, you can follow the course of a straight road to the horizon. If you look directly down, the edges of the road are parallel; at the horizon, they meet at a...

Spatial perception

On a street in the plane, you can follow the course of a straight road to the horizon. If you look directly down, the edges of the road are parallel; at the horizon, they meet at a point.

Explain why in reality parallel lines actually meet at the horizon.