By Brett McCarron, webmaster
Alright, admit it. Who hasn't seen this swell pair of special glasses advertised in comic books and novelty catalogs? Who has actually ordered a pair? And who knows the secret?
It's feathers! Yes, you read that correctly. A hole, approximately 1/4" in diameter, is punched out from two pieces of cardboard. The feather is glued between the cardboard sheets.
If you look through the hole, you are looking through the feather. Holding the hand up to a bright light gives an offset image of the hand. Where the images overlap, the image is darker. It provides the illusion of an x-ray. The rest is pure showmanship. The person wearing the glasses pretends to see through clothing, walls, etc. It's a real hoot!
X-Ray Specs were very popular back when x-rays were relatively recent. Nowadays, audiences are more sophisticated. Or so we like to think!