At a quick glance, a sheet of paper may seem very uniform and much like all others. Look closer, however, and you'll see that it's made up of a random jumble of tiny interwoven wood particles. Scientists from Newcastle University have taken advantage of that fact, using each jumble as a unique "texture fingerprint" for inexpensively authenticating individual paper items such as bank notes, passports or legal documents.
.. Continue Reading Paper fingerprints could thwart counterfeitersCategory: Science
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