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ART / Re: Drawing apparatus by Robert Howsare
« on: April 06, 2012, 06:25:35 am »
Good stuff. It's similar to a spirograph image, except that this is a Lissajous figure, which represents the ratio of the frequencies of the two turntable speeds. It's very similar to images produced by a harmonograph or an X-Y phase scope. Those of you familiar with the album 'id' by Cyclo might recognize the phase diagram on this page: http://en.wikipedia.org/wiki/Lissajous_curve