During a rainy hike canyon walls are visible from the bottom (although a bit foggy). However, when I got to the top, I couldn’t see the bottom anymore—everything was just white. Can someone explain like I’m five why the top is visible from the bottom, but not the other way around?
Edit: missing detail, the weather didn’t change throughout the hike. An the Bailong Elevator led to the top so we reached it within a minute or so. When going down by a cable car the canyons became visible again.
In: Physics
The fog handles the sunlight differently depending on your viewing angle.
From up above the sunlight is bounced back at you obstructing your view
From below the sunlight is dissipated which does not block your view
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