Space and Physics
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As anyone who’s hampered by their less-than-perfect eyesight will know, leaving behind your glasses or forgetting to put on your contact lenses makes for a very inconvenient day. Don’t worry too much though, because the solution to this problem rests in your hands – literally.
The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.As eloquently explained with typical visual resplendence by MinutePhysics, blurry images form when light entering your eye is too spread out on your retina. If you form a ring shape with your fingers and hold it over your eye, it will only allow certain beams of light onto your retina, mimicking the “focusing” effect of a pinhole camera.
You may look a little strange doing this all day though, so next time it might be best to just remember your spectacles.
MinutePhysics via YouTube
