That sand on the vibrating plate, placed over the speaker of a cassette player, was my experiment for the Junior High science fair - I was less precise, having just a 'high' sound, a 'medium' sound, and a 'low' sound. Nonetheless, each visual pattern was very different. And it was a lot easier than, for example, drawing pictures of a germinating Lima Bean.:-)
---In [email protected], <awoelflebater@...> wrote: http://www.educateinspirechange.org/2014/01/heres-convert-music-432-hz.html http://www.educateinspirechange.org/2014/01/heres-convert-music-432-hz.html
