https://hackaday.com/2019/02/24/curve-tracing-on-spray-painted-crts/
Curve Tracing On Spray Painted CRTs | Hackaday
Feb 24, 2019 - A Lissajous curve is formed when two sine waves plotted on their respective X and Y axes. You can see one using an oscilloscope and a couple of signal...
curve tracingspray paintedcrtshackaday
https://www.unsw.edu.au/research/mmfi/news-events/events/tracing-the-covid-curve
Tracing the Covid-19 Curve - Uplifting Your Data Visualisation Skills with Python During Lockdown |...