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
TRN
Newswire and Headline Feeds
for Web sites
© Copyright Technology Research News, LLC 2000-2008. All rights reserved.