Three Pendulum Rotary Harmonograph

A harmonograph is a mechanical device that uses swinging pendulums to draw pictures, believed to be originally invented in 1844 by Scottish mathematician Hugh Blackburn.

This 3-pendulum rotary type of harmonograph gives a wide variety of pleasant results, and is fairly easy to build once you've settled on a design and have acquired the appropriate materials and tools.

This is a great project to do with kids and can result in endless experiments creating new types of geometric designs.

One thought on “Three Pendulum Rotary Harmonograph

  • November 23, 2017 at 5:56 am

    Very interesting blog. A lot of blogs I see these days don’t really provide anything that attract others, but I’m most definitely interested in this one. Just thought that I would post and let you know.


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