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April 9, 2012

Brass Ruler — "Measure twice, cut once"


I bet not one person in a hundred can name the metals in brass*.

And that same person is probably the only one who can cite those that comprise bronze**.

But I digress.

From the website:



A humble little monument to a very sage piece of advice.

A carpenter's motto emblazoned on the most timeless of instruments: a solid brass 12" ruler.

  • Solid brass with etched markings12” x 30 mm x 1.0 mm
  • 12" x 30mm x 1mm
  • Imperial/Metric



[via Paul Biba]



April 9, 2012 at 09:01 AM | Permalink


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Your commenters are pretty bright.

I also knew the standard components:

Brass: copper and zinc
Bronze: copper and tin

But ... I didn't know about the trace metals, or the substitutes.

Posted by: Dave Tufte | Apr 12, 2012 1:49:43 AM

The question was "metals." Phosphorus is a non-metal element. Moreover, Phosphorus does not exist as the pure element in nature (absent stellar cores) with Apatite the most common mineral form ( tricalcium phosphorus).

Posted by: 6.02*10^23 | Apr 9, 2012 7:50:32 PM


I think you should get extra points. I recall that often other elements are added to copper and tin to give bronze different properties.

Posted by: antares | Apr 9, 2012 5:01:39 PM

1 in 100 of whom? Ask in uk.rec.sheds and it'd be nearer 2 in 3, I'd guess. Do I get an extra point for including phosphorus as an adjunct for various useful properties?

Posted by: Skipweasel | Apr 9, 2012 2:55:59 PM

Copper & Zinc if my memory serves me well. Copper & Tin make Bronze.

Posted by: 6.02*10^23 | Apr 9, 2012 10:02:48 AM

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