<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Mmhhh… <div class=""><br class=""></div><div class="">I love Norman’s barn joke (a barn is as roomy as about 1Quetta barns), </div><div class="">but this brings me to the following doubt, could you please clarify it to me?</div><div class=""> </div><div class="">Our VOUnit REC tells us we should use “barn” and not “b”</div><div class="">(see page 13 of <a href="https://www.ivoa.net/documents/VOUnits/20140523/VOUnits-REC-1.0-20140523.pdf" class="">https://www.ivoa.net/documents/VOUnits/20140523/VOUnits-REC-1.0-20140523.pdf</a> ).</div><div class=""><br class=""></div><div class="">In that sense, while 1 Qb = 100 m**2 is correct in SI,</div><div class="">It seems to me that it is wrong to a VOUnits-compliant parser, where instead it should be written:</div><div class="">1 barn = 100 m**2</div><div class=""><br class=""></div><div class="">Unless I am reading the VOUnits document wrongly,</div><div class="">is this an issue for the VOUnits document?</div><div class=""><br class=""></div><div class="">Thanks and cheers, especially to François (given that I have no occasions to see him other than this)!</div><div class="">Alberto</div><div class=""><br class=""></div><div class=""><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 25 Nov 2022, at 17:39, Francois Ochsenbein <<a href="mailto:Francois.Ochsenbein@free.fr" class="">Francois.Ochsenbein@free.fr</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><br class="">Hi Norman,<br class=""><br class=""><blockquote type="cite" class="">Sébastien and all hello.<br class=""><br class="">On 25 Nov 2022, at 15:23, Sebastien Derriere wrote:<br class=""><br class=""><blockquote type="cite" class="">Resolution 3 of the 27th CGPM introduces 4 new decimal prefixes :<br class=""><br class=""><a href="https://www.bipm.org/en/cgpm-2022/resolution-3" class="">https://www.bipm.org/en/cgpm-2022/resolution-3</a> <br class=""></blockquote><br class="">I've added <<a href="https://heptapod.host/nxg/unity/-/issues/13" class="">https://heptapod.host/nxg/unity/-/issues/13</a>><br class=""><br class=""><blockquote type="cite" class=""> R is also used for rayleigh, but because bare unit prefixes are<br class="">ungrammatical, <br class=""></blockquote><br class="">Indeed. Bare 'R' would continue to parse as as rayleigh.<br class=""><br class=""><blockquote type="cite" class=""> I suggest these could be added to the Table 3 of the VOUnits<br class="">document. <br class=""></blockquote><br class="">And I agree. And I see you've added<br class=""><<a href="https://github.com/ivoa-std/VOUnits/issues/21" class="">https://github.com/ivoa-std/VOUnits/issues/21</a>> (beat me to it!).<br class=""><br class="">If my arithmetic is right, I see that the side of a rather large barn<br class="">has an area of approximately 1Qb.<br class=""></blockquote><br class="">... in fact 1Qb = 100m² = a square of 10mx10m (1 are)<br class=""><br class="">Cheers, François Ochsenbein (retired, but still reading VO news..)<br class=""><br class="">-- <br class=""></div></div></blockquote></div><br class=""></div></div></body></html>