[BC] KSDK

[WFIFeng@aol.com]

In a message dated 01/31/2006 08:59:15 AM Eastern Standard Time, 
DHultsman5 at aol.com writes:

> And I thought all those masts were made of lightweight aluminum, a non  
>  ferrous metal???????

Even aluminum will react to a powerful enough, fluctuating magnetic field. 
With a powerful magnet, you can feel this effect- get a magnet from a defunct 
hard drive, and slide it quickly over an aluminum plate. You will feel a very 
distinct resistance which increases as you move the magnet faster. You can also 
feel it if you have a bulk tape eraser. Bring that aluminum plate close to the 
field, and you will feel the magnetically induced vibration in it.

Willie...