Why can you not see through fog when it’s ahead of you but you can once you’re in it?

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Why can you not see through fog when it’s ahead of you but you can once you’re in it?

In: Physics

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Anonymous 0 Comments

>Why can you not see through fog when it’s ahead of you but you can once you’re in it?

Your premise is false. Fog reduces visibility the same from both inside and outside. What you’ve probably experienced is just a trick of perspective. If a given fog bank completely blocks visibility within, say, 100 feet, then from far away it could appear as a solid wall because that 100 feet only occupies a small visual space. But from within the fog bank, that 100 feet starts right at your face, so it occupies the maximum possible percentage of your vision.

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