Lissajous – circle Published 2012/12/11 at 400 × 270 in Circle Graphics – Lissajous figures A Lissajous circle Demonstration of a sine wave and a cosine wave (90 degrees out of phase) applied to the X and Y axis of an oscilloscope, to produce a Lissajous circle. (This video was produced using a vintage National VP-571A Storage Scope.) --Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)