Researchers at the University of Michigan Have Developed an Iridescent Material that Reveals Hidden Words or Images in the Right Setting. What Exactly Causes the Message to Show ? A Single Breath. That's Right, Breathing on the Plastic Sheets Makes Whatever has been Inscribed on it Visible -- Thanks to a Little Instant Humidity -- but, Otherwise Hidden from View. Images are Created Using a Custom Ink-Jet Printer to Output a Water-Repellant Coating in the Desired Shape. When Breathed on, Water Condenses to Show the Image -- Similar to the Manner in which a Peacock's Feathers Lose their Glimmer When they're Wet. The Group Aims for the Material to be Used to Combat Counterfeiters, Replacing Holograms on Passports and More.
Info Sources:
http://www.wired.com/2014/08/anti-counterfeit-material-marilyn-monroe
http://onlinelibrary.wiley.com/enhanced/doi/10.1002/adma.201401246
domingo, 10 de agosto de 2014
Combating Counterfeiters Could Soon Be as Easy as Breathing
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