Again, I ask Santa: how would it be possible NOT to have some light in a shadow without being in a sealed box?
Quote:
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I can see under my desk even though the area is not directly lit by the bulb. It's all reflected light under there, yet I can see just fine.
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But it's a shadow! That means no light is penetating the area - fullstop. :wink:
How about this question, also for Santa:
If, according to you, shadows are the total absence of light, how do we see in an eclipse? Or at night?