>> So each time you analyse a set of samples, there is a linear
>> conversion, but it's different each time.
> 
> Only if the cross sectional area or length of the sample is different.
> 
> You really need to read up on the physical properties of materials.

Well, sure. I mean, it's not like the resistence of a diode varies with 
voltage.

Oh, wait, actually that's exactly what it does. :-P

So what makes you so certain that passing a current through a sample 
can't cause some kind of chemical reaction that affects its electrical 
characteristics, given that we don't even know what the hell this 
machine is or what it does?

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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