On 7/31/15, D. Hugh Redelmeier <hugh@mimosa.com> wrote:
| From: Russell Reiter <rreiter91@gmail.com>
| On 7/31/15, D. Hugh Redelmeier <hugh@mimosa.com> wrote: | > On Fri, 31 Jul 2015, Russell Reiter wrote: | > | <snip> | > I think you mean "six sigma". | | Umm. Six sigma is a corporate SAP construct.
SAP? They were not the well-known heros of the movement.
SAP as Standard Applied in Protocol existed long before the german business SAP co-opted the acronym in the 70's.
| Put forward by Motorola | if I recall correctly.
Seems to be the case.
| A sic sigma table is one written, sic erat | scriptum, thus it was written.
I just checked I got it wrong. Literally "thus was it written"
Google doesn't know this. Most of the hits are for typos of "six sigma". There also seems to be SiC sigma (SiC == silicon carbide): "SiC Sigma fibres are commonly used as reinforcement in metal matrix composites." That's the first sentence of the abstract of: <http://www.gruppofrattura.it/ocs/index.php/esis/ECF13/paper/viewFile/8615/5049>
Wikipedia does. https://en.wikipedia.org/wiki/Sic
How does sigma relate to scriptum? One is Greek and the other Latin, for example. | | The rafter tables on my framing square were referred to as sic sigma. | It's a set of tables by which oblique and other angles which which are | used to join wooden members in a hip and valley roof may be | calculated.
Interesting. I found no google hits on this usage.
You'd probably have to use a more advanced search to display the contents of old carpentry manuals. For example scanned copies in the Guttenberg project. I got this information as SOP training in my workplaces. SOP = Standard Operating Procedure. In hip and valley framing you have to be able to calculate the deviation from one member to another. Can't afford to waste expensive lumber by cutting a piece too short to be useful. There's lots of esoteric building knowledge for which the procedures are still maintained but the origins are clouded in masonic handshakes and the like. Now dormers come pre-fab and carpenters use a little tool called a speed square. Not many today can read and understand the tables. I could't today without a refresher, haven't swung a hammer for enterprise for 20 or more years. Even then stuff was more often coming pre-fab from the factory's than not. It was my Grandfather who taught me how to sharpen a plane and a saw in the 60's. I was 13 and thats how he related to me, as a young man who needed these essential skills. It's interesting to note that the current platform framing method we use to build house was implemented in order to create temporary manufacturing communities which were closer to the sources of natural resources. This was during the second world war. These houses are easy to put up and easy to take down. Ostensibly in order to repristinate the wild after the resources were extracted. I just checked the etymology of another tool to see if the old carpenters who trained me and loaned me their books to read got it right. https://en.wikipedia.org/wiki/Plumb_bob Etymology The "plumb" in "plumb-bob" comes from the fact that such tools were originally made of lead (Latin plumbum, French plomb). The adjective "plumb" developed by extension, as did the noun "aplomb", from the notion of "standing upright". Dedicated craftspeople like to talk about their craft and impart their esoteric knowledge to younger people. Of course you have to show interest and listen well.
Of course now there will be: this list is visible to google.
I'm sure google learns more and more each day that passes. I sure do.
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