Engineering and fabrication
PSI27 Plastic image jpg
Summary: system is so secure that not even the inventors would be able to crack it since there is no known manufacturing process for copying surface imperfections at the necessary level of precision Atomic force micrograph of the surface of a plastic ID card Although there are no fibres there are still slight undulations to the surface These form the fingerprint for plastic items
Image Dimensions: 500 x 470
Image originally found here.
