Ah yes,  a fiscal policy based on the "Zinc Standard". 

-----Original Message-----
From: Marshall Dudley [mailto:[email protected]] 
Sent: Thursday, October 23, 2003 10:40 AM
To: [email protected]
Subject: Re: CS>Zapper


I don't think pennies are a good idea, unless they make certain that old
pennies are used.  Pennies use to be made out of virtually pure copper, but
due to the high cost of copper, they are now mostly zinc.  Zinc is a
definite skin irritant for many people.

Here is the history on the penny:

1793 - 1837 - 100% copper
1837-1857 = 95% copper 5% tin + zinc
1857- - 88% copper 12% zinc
1864 - 1962 - 95% copper 5% tin + zinc (except 1943 when they were zinc
coated
steel)
1962-1982 - 95% copper 5% zinc
1982- present - 97.5% zinc 2.5% copper

I do not think that zinc is a good choice for an electrode that contacts the
skin.

Marshall



Delmont Neroni wrote:

> Question for people using the terminator zapper:  have you had any 
> problems with skin irritation where the electrodes touch?  One report 
> I read said the copper in the pennies could react with perspiration 
> and create a lot of irritation.  The same web site offered an option 
> where the copper is covered with silver, but said that could also 
> darken the skin.
>
> Is this a serious problem?  Can it be solved by just relocating the 
> device frequently?
>
> Del
>
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