Beyond water cooling. (Was Re: Peltier devices for cooling)

[Paul Perry]

At 01:06 PM 10/02/00 +1000, batzman wrote:

>The worst noise in here isn't from the computers. Ironically it's generated
>by the fleuro lights. This produces a kind of high pitched sound that the
>microphones just love. 

well Batz, what you are listening to is magnetostriction in the ballast
transformers in the fluros. Which no0body else will know what we are talking
about, owing to electronic ballasts having taken over in the civilized world.

paul perry melbourne australia