Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > sci.physics > #897299

compression in a roll

From Christopher Howard <christopher@librehacker.com>
Newsgroups sci.physics
Subject compression in a roll
Date 2026-10-14 07:13 -0800
Organization A noiseless patient Spider
Message-ID <87h5ioe2n0.fsf@librehacker.com> (permalink)

Show all headers | View raw


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

Back to sci.physics | Previous | Next — Next in thread | Find similar | Unroll thread


Thread

compression in a roll Christopher Howard <christopher@librehacker.com> - 2026-10-14 07:13 -0800
  Re: compression in a roll ram@zedat.fu-berlin.de (Stefan Ram) - 2026-10-14 15:41 +0000
  Re: compression in a roll Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-10-14 22:17 +0200

csiph-web