Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 5719195 | Treatment of psoriasis with 11-cis-retinoic acid A particular uncommon isomer of retinoic acid (namely 11-cis-retinoic acid, or neotretinoin) is useful in treating conditions involving abnormal cellular differentiation and hyperproliferation, such as psoriasis. A new method of synthesizing this isomer, ... | 02/17/1998 |
