A fact from Steelmark appeared on Wikipedia's Main Page in the Did you know column on 14 January 2009, and was viewed approximately 2,864 times (disclaimer) (check views). The text of the entry was as follows:
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I constructed the current previous Steelmark logo SVG image according to the description in the article, using an astroid curve generated with numerical methods. However, it doesn't quite look like the astroids appearing on official Steelers football team paraphernalia or items sold at the AISI online store: The curves on my version are too shallow, giving the astroids a look that is a little too fat. It would be good if it could be established that the original AISI logo was, in fact, created with mathematically correct astroids, or was merely an approximation, made by using, say, a French curve on a drawing board. (This would have been decades before the widespread use of CAD systems, and would, therefore, most likely have been drawn by hand.) —QuicksilverT@03:46, 26 October 2010 (UTC)[reply]
I revised the graphic, using a Bézier spline fitted to a raster graphics sample of the "Steelers" football team logo. It looks more like the original AISI logo now. Based on this demonstration, I've modified the information in the article claiming that the shapes are astroids and added a footnote.—QuicksilverT@18:32, 26 October 2010 (UTC)[reply]
