[BC] Aluminum and magnetic/electric currents

[WFIFeng@aol.com]

In a message dated 02/18/2006 11:34:05 AM Eastern Standard Time, 
lowen at pari.edu writes:

> Found my reference: "Direct Current Machinery" Hempstead S Bull, John Wiley 
>  and Sons, 5th printing, 1947.  Page 253, subject 'Homopolar Generator'.  
>  Google for "Faraday Homopolar Generator" for more information.  

All I'm finding on Google (the first 20 or so entries) all seem to be either 
"free" sites like geocities or conspiracy theory or "free energy" 
gobbledygoop. Can you give me a link to something reputable & trustworthy? :)

As for my original comment, I cannot see how the tiny magnetic field of the 
Earth could possibly provide enough eddy currents to produce sufficient drag to 
make that spinning disk even slightly useful as an excercycle load.

Willie...