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From: Christopher Howard <christopher@librehacker.com>
Newsgroups: sci.physics
Subject: compression in a roll
Date: Wed, 14 Oct 2026 07:13:39 -0800
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Hi, I was wondering: when you roll up tightly something like sheets of
paper, toilet paper, or plastic, is there some kind of compression force
that makes sheets toward the center of the roll thinner than sheets
toward the outside of the roll? I was thinking about the mathematics of
the relationship between the radius of a roll and the length and
thickness of the roll, which I see is simple if you assume that there is
uniform thickness in a tight roll. But I was wondering if the roll tends
to compress more toward the center or if the tension of making the roll
is even throughout and not accumulating.

-- 
Christopher Howard