Resonance Patterns and Celtic Interlace
On the left is a screenshot from a YouTube video (see below). The video shows a sequence of patterns (called Chladni figures) produced as a sheet of metal resonates in response to a tone of steadily increasing frequency. The sand sprinkled onto the sheet bounces around and settles in the parts where there is least vibration. There are lots of videos on YouTube that show resonance effects in different materials. I picked out this one because some of the patterns (like the one above) resemble man-made patterns like those used in Celtic interlace (on the right). This interlace or knotwork can be found on old Celtic and Christian masonry or in old manuscripts like the Book of Kells. I also use it in a lot of my artwork. If you look closely at the background to my blog you will see that it is a tiling of knotwork wheels. I will post more about knotwork when my origami binge has fizzled out.
:!:As it says in the video itself, the audio is very loud so you need to turn your volume down. ❗
- Watch audio frequencies visualized in sand (news.cnet.com)
- AMAZING Resonance Experiment [Video] (geeksaresexy.net)