Inaudible frequency...................................................................
......................................................................................
Inaudible frequency describes visually frequencies inaudible to the human ear. A fluid
bath is mounted on top of a bass speaker which is connected to a frequency generator..
The fluid in the bath assumes a waveform dependent on the frequency being played......
through the speaker. A spinning laser projects a circle of light onto the surface of..
the fluid; the result is photographed.................................................
......................................................................................
(click here to see a quicktime movie of 'inaudible frequency', 1.6 MB file)...........
......................................................................................

......................................................................................
Image 1) 10Hz.........................................................................
Image 2) 20Hz.........................................................................
Image 3) 30Hz.........................................................................
Image 4) 40Hz.........................................................................
......................................................................................
......................................................................................
<end>.................................................................................