In 1970 Spence Silver was trying to
develop a very strong glue. The samples of glue that didn’t work were stored
away. A few years later Arthur Fry who was also a scientist at 3M was annoyed
that his paper bookmark kept falling out of his songbook. He put some of
Spence’s weak glue on the bookmark. It stuck to the pages but could be removed
without tearing. 3M ‘post it’ notes launched in the 1980’s.
By Alan
No comments:
Post a Comment