No ridges on the sides? This could be be trouble! | Hacker News

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		mhuffman 6 months ago \| parent \| context \| favorite \| on: Thnickels No ridges on the sides? This could be be trouble!

michelpp 6 months ago | [–]

Usd nickles have smooth edges.

KaiserPro 6 months ago | [–]

more aerodynamic

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