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Q & A: Scientific American Article on Ruling Engines

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Most recent answer: 10/22/2007
I am aware of the role of ruling engines in the manufacturing process of diffraction gratings, having been involved in it. I am aware of an article in Scientific American between 1970 to 1976. I would like to know if you are aware and could advise me of the issue it appeared in??
- don essley (age 66)
arizonastateuniversity, tempe,az,usa
Hi Don,

I believe you are asking about the column by C. L. Stong, "The Amateur Scientist" -- there is an article in the April, 1975 issue entitled "An Amateur Undertakes the Ultimate in Mechanical Precision, a Ruling Engine".


(published on 10/22/2007)

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