Description:  The top panel shows a specially coated piece of paper under visible light. The bottom panel shows the same piece of paper under ultraviolet light.
Source:  University of Tokyo
Story:  Invisible ink is rewritable
TRN July 13/20, 2005
TRN Categories:  Materials Science and Engineering; Cryptography and Security
Form:  Still

 
Home     Archive     Resources    Feeds     Offline Publications     Glossary
TRN Finder     Research Dir.    Events Dir.      Researchers     Bookshelf
   Contribute      Under Development     T-shirts etc.     Classifieds
Forum    Comments    Feedback     About TRN

© Copyright Technology Research News, LLC 2000-2008. All rights reserved.