what keeps the lead on the page?

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paul.fr

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what keeps the lead on the page?
« on: 29/03/2008 22:25:27 »
What keeps the lead in  my pencil, on the page? Does it degrade?

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Offline JimBob

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what keeps the lead on the page?
« Reply #1 on: 30/03/2008 02:23:47 »
I believe it is like dirt - the dust impregnates the fibers - either clot or cellulose.
The mind is like a parachute. It works best when open.  -- A. Einstein