RE: pinhole fuel cell gadget?

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From: Mark Hurwitz (markh@ssl.berkeley.edu)
Date: Sun May 08 2005 - 17:39:27 PDT


From: "Mark Hurwitz" <markh@ssl.berkeley.edu>
Subject: RE: pinhole fuel cell gadget?
Date: Sun, 8 May 2005 17:39:27 -0700
Message-ID: <auto-000001370815@exploratorium.edu>

Reading the advertisement closely, it doesn't state unambiguously that the
device

can be refilled infinitely. Seems possible to me that it contains a cheap
dry chemical

battery, and the water just activates it. Maybe only once.

 

If refills do restart the cycle, and the clock/calculator contains no
exhaustible chemicals,

then other possibilities include:

 

            -evaporative cooling creates enough of a temperature difference
to generate

electricity, as with a Peltier device?

 

            -the mechanical act of removing and replacing the reservoirs or
whatever it

is you do somehow charges up a tiny battery?

 

-Mark

 

 


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