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A Never Before Seen Optical Trick Creates Ultra-Secure Cash

Posted by: Philippe Matthews in Professional Development News Comments Off on A Never Before Seen Optical Trick Creates Ultra-Secure Cash 298 Views

Imagine a bill covered with microscopic holes that make it glow slightly in the light. It’s tech borrowed from a butterfly, and it may soon be foiling counterfeiters around the world

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A Never Before Seen Optical Trick Creates Ultra-Secure Cash

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