Just the other day we were thinking “You know what we need more of around here? Harmonographs!” And our requests were answered when [Paul] sent in his three pendulum harmonograph. For those unaware, ...

If you’re like me, you looked at this picture and the name “Three-Pendulum Rotary Harmonograph” and felt confused and a little bit threatened. But fear not! Turns out it’s one of those fun ...

NEWFANE — When New Hampshire artist Don Fitzpatrick was setting up his harmonograph recently at Moore Library a person walked up to him and asked, "Where is the motor?" Fitzpatrick replied, "There is ...

When my elder brother and I were kids back in the late 1970’s, our hacker Dad showed us this 1960-61 catalog of the Atlas Lighting Co (later Thorn Lighting) with an interesting graphic design on the ...