<div dir="ltr"><div dir="ltr">On Sun, 27 Jan 2019 at 00:49, Sergio Manzi <<a href="mailto:smz@smz.it">smz@smz.it</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p>... but now I have a doubt... I don't find any referenece... have
I been pranked? :-/</p></div></blockquote>I thought perhaps you had, because I couldn't turn up anything on a google search.</div><div class="gmail_quote">Which is why I said I hadn't heard of it. But I was puzzled when you responded that</div><div class="gmail_quote">the imperial hundredweight was "112 lb 8 stones" so I checked. And found</div><div class="gmail_quote"><a href="https://en.wikipedia.org/wiki/Hundredweight">https://en.wikipedia.org/wiki/Hundredweight</a>. So you were right about the cental.</div><div class="gmail_quote">Except in British English we used hundredweight in my youth because we had never</div><div class="gmail_quote">heard of "centum weight" or "quintal." And, to be honest, even hundredweight</div><div class="gmail_quote">wasn't much used outside of people involved in bulk transportation of heavy</div><div class="gmail_quote">goods, so it was pretty much ounces, pounds, stones and tons for ordinary</div><div class="gmail_quote">people.</div><div class="gmail_quote"><br></div><div class="gmail_quote">There are many more units of weight. I dimly remember a very old Science Fiction</div><div class="gmail_quote">story in which aliens failed to invade the Earth because they were confused by all</div><div class="gmail_quote">the different units of weight involved. I can't remember the name of the story or the</div><div class="gmail_quote">author, but I can remember that one of the bizarre units was the catty.</div><div class="gmail_quote"><br></div><div class="gmail_quote">This way madness lies. Some of these bizarre units of weight are still in use in</div><div class="gmail_quote">various parts of the world. The link above has an image of a weight restriction</div><div class="gmail_quote">sign on Alderney (not part of the UK but a Crown Dependency) of 30cwt. Which</div><div class="gmail_quote">is imperial cwt (or centum weight) not US cental. I'm seriously starting to think</div><div class="gmail_quote">the wiki page adopted the most sensible strategy of saying that weights should</div><div class="gmail_quote">be in metric units.</div><div class="gmail_quote"><br></div><div class="gmail_quote">Except for one problem. The various tons and hundredweights are not units of</div><div class="gmail_quote">weight but of mass, so weight restrictions are given in mass units not weight</div><div class="gmail_quote"> units. We should be specifying weight restrictions in Newtons, dynes<br></div><div class="gmail_quote">poundals and slugs.<br></div><div class="gmail_quote"><br></div><div class="gmail_quote">OK. Let's deprecate weight restrictions. Change the wiki to say weight restrictions</div><div class="gmail_quote">are not permitted. :)<br></div><div class="gmail_quote"><br></div><div class="gmail_quote">-- <br></div><div class="gmail_quote">Paul</div><div class="gmail_quote"><br></div><div class="gmail_quote"><br></div></div>