Re: Are apples good batteries ? ? ?

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From: Dieter Britz
Date: Mon, 22 Nov 2004 11:15

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Hans-Marc Olsen wrote:
> I heard that apples are good batteries, but someone told me that pears are better.
> 
> So what is better now, apples or pears?

One answer could be, "Define 'good'".
Iow, what do you want to use the battery for? If for a demonstration
of how you can make a simple battery by sticking electrodes (Cu and Zn,
for example) into fruit, I'd expect apples to be better, as apples
tend to be more acid. Lemons are better still. You won't get much of a
current out of any of these, but that is not the point in this kind of
demonstration, anyway.

-- 
Dieter Britz,   Kemisk Institut, Aarhus Universitet, Danmark.

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From: Dieter Britz <britz@chem.au.dk>
Newsgroups: sci.chem.electrochem,can.sun-stroke
Subject: Re: Are apples good batteries ? ? ?
Date: Mon, 22 Nov 2004 12:15:18 +0100
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