3. Henry David Thoreau (1817-1862) came from a family of pencil makers — in fact, Thoreau and Company was America’s foremost manufacturer — and was an accomplished pencil innovator. He dreamed up a way of injecting the graphite inside a hollowed-out pencil; until he did so, two wooden halves were glued together with the lead inside.
Wednesday, March 30, 2016
...and 11 facts about pencils...
on the 158th anniversary of the pencil with attached eraser...Among which:
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