This is a wonderful experiment conducted by Hans Jenny in what he called Cymatics. Which is a study of Wave phenomena.
Here is the web link http://www.unitedearth.com.au/sound.html for this article and I would like to copy and paste it here so that it is not lost to mankind. It is not a copyright violation as this is done here for informational purpoases only and preserve this sort of information as it may be lost due to web hosting or site domain issues.
Hans Jenny and Cymatics – The Study of Wave Phenomena
 Hans Jenny (1904 – 1972) |
In the 1960s and ’70s Swiss engineer and medical doctor Hans Jenny performed experiments using sound frequencies on various materials such as water, sand, dust, liquid plastic and milk. Dr Jenny placed the material on a metal plate attached to a crystal oscillator which was controlled by a frequency generator capable of producing a wide range of vibrations. He then filmed and photographed what happened on the plate.
He coined the term Cymatics (the study of wave-form phenomena), which is derived from the Greek ‘kyma’ meaning ‘wave’, and ‘ta kymatica’ meaning ‘matters pertaining to waves’. |
 Cymatic water pattern 1 |
 Cymatic water pattern 2 |
 Cyamtic sand pattern 1 |
 Cymatic sand pattern 2 |
The first two images are of water. The higher the frequency, the more complex the pattern.
The vibrations are strongest in the dark areas within the material on the plate. For example in sand pattern 1, the sand falls into those areas where there is little or no vibrations, thus making the unique patterns shown.
These next images were taken from moving film. Please remember that the substance is constantly oscillating and not in a static state. It is interesting to note that even when the plate was tilted the material would not fall off but would continue to oscillate just as before – seemingly defying gravity. When the frequency was shut off the material would immediately fall to the floor.
 Milk in motion |
 Liquid plastic looking like a jelly fish or cake |
 Iron filings looking very much like an eye |
Below is a picture of the Sri Yantra (mandala image 1). This is probably one of the most famous mandalas. You can find it in thousands of temples in India and the Far East. This is the pattern that the ‘OM‘ is said to represent. Or rather, this is the image that the ancient Rishis envisioned when meditating on the ‘OM‘.
Dr Jenny invented a machine called a Tonoscope which allowed a human voice to vibrate the plate directly. He had a voice sing ‘OM‘ into a microphone and the result can be seen in mandala image 2.
Incidentally, regarding the sand paintings of the Navajo Indian – there was a time in the distant past, so legend tells us, when the Navajo shaman made beautiful pictures in the sand merely by speaking to it.
 Mandala ‘Sri Yantra‘ – image 1 |
 Mandala ‘Sri Yantra‘ made by human voice singing ‘OM‘ – image 2 |
 Navajo sand painting |
Cosmic Warrior 