Big money (literally)

  • What’s the name for those fine, moiré-looking swirls often found on banknotes?  Guillochés, it turns out.  Aegir Hallmundur features a nice set of them, plus info on how they were created.  See also his Future of Money designs. [Via]
  • The folks at the GigaPan project provide close-ups of guillochés, pennies, and much more with their new giant close-ups. Here they demonstrate photographing a circuit board:

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