How To See Without Glasses

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Minute Physics explains why using your fingers to create a small hole can help those with bad vision if they ever come to lose their glasses.

“Unlike a lens, a pinhole or small opening can focus light from any distance. Because it’s such a small opening, it only allows light to come through in one place and thus in only one direction from any particular source so there’s no blur and everything is in focus.”

Miunute Physics on YouTube via Geeks are Sexy.

This entry was posted in Science, Videos by Heretic. Bookmark the permalink.

About Heretic

I design video games for a living, write fiction, political theory and poetry for personal amusement, and train regularly in Western European 16th century swordwork. On frequent occasion I have been known to hunt for and explore abandoned graveyards, train tunnels and other interesting places wherever I may find them, but there is absolutely no truth to the rumor that I am preparing to set off a zombie apocalypse. Nothing that will stand up in court, at least. I use paranthesis with distressing frequency, have a deep passion for history, anthropology and sociological theory, and really, really, really hate mayonnaise. But I wash my hands after the writing. Promise.

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