Naked Science Forum

General Science => General Science => Topic started by: Seany on 30/03/2008 14:55:45

Title: What happens when a rubber rubs pencil off paper?
Post by: Seany on 30/03/2008 14:55:45
Curious after Paul's post..

http://www.thenakedscientists.com/forum/index.php?topic=13631.0 (http://www.thenakedscientists.com/forum/index.php?topic=13631.0)


Does the rubber take a thin layer of the paper off as well.. Or just the layer of graphite from the pencil?
Title: What happens when a rubber rubs pencil off paper?
Post by: JimBob on 30/03/2008 17:25:13
The eraser removes the paper fibers that are impregnated with the graphite (lead).
Title: What happens when a rubber rubs pencil off paper?
Post by: Seany on 30/03/2008 17:45:24
So more rubbing eventually means you will have a hole in the paper?
Title: What happens when a rubber rubs pencil off paper?
Post by: science_guy on 30/03/2008 20:52:14
yup
Title: What happens when a rubber rubs pencil off paper?
Post by: Make it Lady on 30/03/2008 21:01:38
I've done that and got 100 lines. 'I must be more careful with my rubber.'

Judging by the birth rate around here I think some young men need to do the same lines.
Title: What happens when a rubber rubs pencil off paper?
Post by: Seany on 30/03/2008 22:05:45
LOL....

I get it [:P]
Title: What happens when a rubber rubs pencil off paper?
Post by: Make it Lady on 30/03/2008 22:10:51
Well then you too must be careful!!!

I think my problem was that I used an ink rubber which definitely removed paper. I was under the impression that it was only the slippery graphite and a very small amount of paper that was removed with a normal rubber.
Title: What happens when a rubber rubs pencil off paper?
Post by: Seany on 30/03/2008 22:11:40
That really really hard rubber?