JUPITERASC
Well-known member
Alternatively, shine an imaginary white spot light onto an imaginary sphere. The imaginary beam of bright white light from the imaginary spot light illuminates a circular portion of the imaginary sphere.
Furthermore, suppose the imaginary sphere is planet Earth, and an imaginary person is standing in the center of the spotlight - under those circumstances then, that "spot" of bright white light is illustrative of what that observer experiences as their “local horizon” Suppose you could pick up that "spot" of light and flatten it and view it from the side... then it would look like "a straight line"... it's all relative
Furthermore, suppose the imaginary sphere is planet Earth, and an imaginary person is standing in the center of the spotlight - under those circumstances then, that "spot" of bright white light is illustrative of what that observer experiences as their “local horizon” Suppose you could pick up that "spot" of light and flatten it and view it from the side... then it would look like "a straight line"... it's all relative
Last edited: