Music decoded from 600-year-old carvings in the Rosslyn Chapel (4:40)

A father and son deciphered the symbols found in the Rosslyn Chapel (the one featured in the Da Vinci Code). They turn out to be a song, with the notes represented using Chladni patterns. A simple experiment demonstrating the visualisation done by sprinkling sand on a metal plate and vibrating the plate, for example by drawing a violin bow along the edge, the sand will then form itself into standing wave patterns such as simple concentric circles. The higher the frequencies, the more complex the shapes produced. Very cool!

News article: http://www.reuters.com/article/topNews/idUSL014372920070501
Wikipedia article on Chladni patterns: http://en.wikipedia.org/wiki/Cymatics
Official site of the discoverer: http://www.tjmitchell.com/stuart/rosslyn.html