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Re: Re: chewing ice, gnashing teeth

>>Does anyone know why it is that when I chew ice and look at video 
>>interlaced or noninterlaced, I see field/frame flicker, and moire? 
>>If there's no ice around, you can get the same effect by chomping your 
>>teeth together while observing a monitor... 
>Wow.  Cool.  Just don't do the brown acid, man. 
>;-) ;-) ;-) ;-) 
I remember an article in Scientific American that described how if you hum
at the right frequency while watching a propellor on a prop airplane, the
blades of the propellor will seem to stand still. If you hum at the right
pitch while watching a video monitor, you can see "hum bars".