At 19/9/2001 08:22 -0700, Don Wilkes wrote:
>Oh! I shall really have to see if our library has a copy of that! I
>remember building one in about 1965, and being endlessly fascinated by the
>patterns it would create. I never knew a name for the device, though.
>Does the book mention anything about who invented it, when, and what
>prompted its discovery?
It's been used for drawing background patterns on currency notes. The
device may have been known to Newton, but not by that name or for this
The name "harmonograph" may be Anthony Ashton's name (and possibly
copyright) for his version of the device.
David Ibbetson * 133 Wilton Street * Unit 506 * Toronto M5A 4A4
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