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-<h2>What this program does</h2>
-
<div id=js-note>
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<p>This page is only really interesting because it contains a Javascript
-program. You seem to have Javascript turned off, so it won't work very
+program. You seem to have Javascript turned off, so it won’t work very
well. It only requires first-party scripts;
see <a href="#privacy">Privacy</a> for more details.
</div>
-<h3>Background</h3>
+<h2>Background</h2>
<p>When you pass round or square wire through flat rolls it gets flatter
and longer, but it also gets wider. You can exploit this to make thin
roll down to the required thickness of strip.
<p>For best results, roll the strip in as few passes as you can handle.
+The results aren’t accurate for broad, thin strips.
+Width-to-thickness ratios of up to 6:1 are known to be good; ratios of
+12:1 or more don't work: strips don’t get as wide as predicted by
+our model. We need to collect more data and construct a better model to
+handle this case properly.
<p>You can see the <a href="rolling-eqn.html">detailed equations</a>
-used for this calculation if you're interested.
+used for this calculation if you’re interested.
-<h3>Use</h3>
+<h2>Use</h2>
<p>Boxes with light red or white backgrounds are entry boxes for you to
type in your requirements; boxes with dark red or grey backgrounds are
inches. Whatever you use, the results are displayed to only 3 decimal
places.
-<h3>Code and credits</h3>
+<h2>Code and credits</h2>
<p>The code which makes this page work
is <a href="https://www.gnu.org/philosophy/free-sw.html">free
the text was written by Mark Wooding and Gary Wooding. The data used
to derive the computation was provided by Gary Wooding.
-<h3 id="privacy">Privacy</h3>
+<h2 id="privacy">Privacy</h2>
<p>There are no cookies or other trackers here. This page does not use
externally hosted scripts, fonts, images, or anything else. The server
mostly things work fine and the logs are discarded after a couple of
weeks.
+<p>Most web browsers can save a version of this page which can be used
+offline.
+
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