The Naked Scientists

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Author Topic: what keeps the lead on the page?  (Read 1885 times)

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?


 

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 Naked Scientists Forum

what keeps the lead on the page?
« Reply #1 on: 30/03/2008 02:23:47 »

 

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