By Erich Vieth on December 30th, 2007
Did you lose your glasses?
If it’s an emergency situation where you lost your glasses and you need to read something, all you need is a leaf and a tiny stick, or a piece of paper and a pin. Robert Krampf explains it at the Science Education Company.
I just tried his simple technique and it works impressively (though it’s not practical as a long-term solution).
Note to self: always carry around a leaf and a pin in case I lose my glasses.
That’s totally cool, Erich. Thanks for posting the link.
This post deserves an encore. Here it is: How to polish your shoes with a banana. http://www.sonnyradio.com/bananapolish.htm
This same method works reasonably well without a pin: just squint your eyes. The resulting slit between your upper and lower eyelids will function the way a pinhole does to sharpen your vision.
BTW, a pinhole through cardboard, aluminum foil, tree bark, etc., will also make a handy pair of emergency sunglasses.