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In Reply to: Short memory posted by unclestu on April 8, 2011 at 17:11:10:
Same thread you state quartz has no magnetic properties at all.
No, I did not.
"Virtually nil" seems to be a highly subjective statement, at least in my thinking.
When you're talking about magnetic properties on the order of that of air, then I think it's safe to call such magnetic properties "virtually nil."
I stated the permeability, but now you are stating it is negligible.
No, you didn't state the permeability. You simply said the book said it was similar to that of copper. And didn't mention the permeability of copper either.
The relative permeability of a vacuum is 1.
The relative permeability of copper is 0.999994.
The relative permeability of sapphire is 0.99999976.
Now what numerical measurement is significant for you? At what point does the human ear distinguish any change?
A change in what exactly?
se
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Follow Ups
- RE: Short memory - Steve Eddy 18:40:17 04/08/11 (2)
- Read - unclestu 13:07:35 04/11/11 (1)
- Comprehend - Steve Eddy 20:39:47 04/11/11 (0)
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