Ordering some more Post-its the other day reminded me of the story of
their discovery at the 3M company. The adhesive was invented nearly
fifty years ago but then languished in the company’s archive
as no-one could think of an application for it. Many years later,
another 3M employee wondered whether there was anything in his company’s
archive that could prevent the scraps of paper falling from his
hymn-book when he was singing in the choir…
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