[Jewelry making - Article 00374] - Re: [Orchid] Metric system

[jyang949]

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    Another reason why the U.S. should go metric: To minimize conversion
    errors. 

    "Great Wire Jewelry" (by Irene From Petersen) was translated into
    English from the original Danish. In each project, wire is described
    by both gauge and thickness in millimeters: 

	26-gauge (0.5 mm)
	24-gauge (0.6 mm)	
	22-gauge (0.8 mm)	
	20-gauge 	(1.0 mm)	
	18-gauge (1.2 mm)	
	16-gauge (1.5 mm)	
	14-gauge (2.0 mm)	

    I think those numbers are wrong--mismatched, actually--and should
    be: 

	26-gauge (0.4 mm)
	24-gauge (0.5 mm)
	22-gauge (0.6 mm)
	20-gauge (0.8 mm)
	18-gauge (1.0 mm)
	16-gauge (1.2 mm)
	14-gauge (1.5 mm)
	12-gauge (2.0 mm)

    However, this would mean that the book is full of significant
    errors, which is unlikely. I, on the other hand, am "numerically
    challenged" and make math errors all the time. I would appreciate
    help understanding these numbers! Thanks--Janet


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