Biology
By closing the eyes and gently pressing them with your palms, you may see some specs of brilliant light. How do you get this sensation while there is no light entering your eyes?
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Answer
The sensation of light persists for a period of time after we look at a bright object and then close eyes. It lasts for one-tenth of a second. Due to this by closing the eyes and gently pressing them with our palms, we see some specs of brilliant light.
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