Egyptian blue, after a long spell of obscurity, may become very popular again. It has a special property. Hit it with visible red light, and it will give off infrared. It will give off infrared for a prolonged period of time. This is helpful if youre an archaeologist and you want to determine what kind of pigment coated a statue a long time ago. Expose the statue, the painting, or anything else, to a concentrated beam of red light, then take a picture with a camera sensitive to infrared. While most of the art piece will be dark, anything painted with Egyptian blue will shine like animal eyes in the dark. Its even better if youre a doctor. The frequency of infrared that Egyptian blue emits penetrates flesh more deeply than most other frequencies, without doing any damage. Incorporating Egyptian blue into medical technology will be a cheap way to scan a persons body. It wont take much Egyptian blue, either. Egyptian blue can be separated into sheets one thousandth the width of a human hair. How do get this advanced nanotechnology? Stirring the pigment gently in warm water for a few days. Which means that, its possible to get a very cheap, very accurate medical technology out of a five-thousand-year-old pigment, some water, and a spoon. io9/this-ancient-pigment-could-soon-be-used-to-see-through-1679891667?
Posted on: Sat, 17 Jan 2015 06:10:10 +0000
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