Why is the blackness of my room darker when my eyes are open than when they are closed? When falling asleep last night in my pitch black room, I noticed that when I closed my eyes there was a grey-ness, instead of the same black that I saw when my eyes were open. There were no prominent light sources in my room and the windows were entirely blacked out. Please explain!
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I remember hearing or reading somewhere that it is because we actually can see heat, even if mildly, and that’s why when you close your eyes, they catch the heat of your eyelids.
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