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Introducing Penduolum

By Jon Valdés - (2022-07-07)

While vising Tom Tits Experiment recently with the family, we saw an interesting experiment using a harmonograph. It was built with two big pendulums and a BIC pen, and it produced quite nice images, like this one:

Harmonograph output

I decided to try to replicate it virtually (not knowing anything about harmonographs or the curves they're designed to generate), and I came up with Penduolum:

The link to the project demo:

And the source code:

Penduolum uses Notan as a general framework, and egui for the UI.

Thanks to my friend Nazarí González for the help and for building the Notan!

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License .