Why do glowing patterns dance across your vision after you rub your eyes?
In short: Ever noticed strange lights or colors after closing your eyes or glancing at the sun? This video explores the science of afterimages, the visual illusions that persist in your sight after exposure to bright light or pressure.
Afterimages are visual illusions that occur when your eyes continue to perceive an image or light source after the stimulus has been removed. These illuminated patterns can appear after looking at bright objects like the sun or sitting by a campfire.
The scientific investigation of these phenomena dates back to the 1600s, when Isaac Newton performed experiments to understand the lights and colors that manifest when eyes are closed. This video breaks down the biological and physical mechanisms behind why these fleeting images form.
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Sources
- Summary by Intellect · source: What are those spots you see after you rub your eyes? - Paul CJ Taylor
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