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battery question

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Posted by AssTelescope on January 2, 2005, 11:58 am
 
Hi,

Recently I saw a site that showed how to make a VERY basic solar cell. It
involved....just check out the link, easier
http://www.scitoys.com/scitoys/scitoys/echem/echem2.html

Was wondering if there's an easy way to make a battery that shows the basic
concepts of how they work, like a classroom experiment.

Thanks



Posted by William P.N. Smith on January 2, 2005, 3:11 pm
 

Google for zinc copper battery.  Essentially stack up copper,
paper-soaked-in-vinegar,zinc ...


Posted by Anthony Matonak on January 2, 2005, 4:15 pm
 AssTelescope wrote:
...

Potato and fruit clocks abound as well as the old fashioned penny/nickel
cells. This is a classic classroom experiment that seems to appear
everywhere. Not finding one means that you haven't looked.

For example:
http://www.ehow.com/how_18637_make-potato-clock.html
http://www.unit5.org/christjs/Potato%20Battery.htm
http://shop.store.yahoo.com/nationalgardening/22-1053.html
http://www.starmagic.com/store.cgi?620976+3A3A002
http://www.toys2wish4.com/fruitclock.html
http://wow.osu.edu/Electricity/lemont.htm
http://www.geocities.com/thesciencefiles/simple/battery.html
http://pbskids.org/zoom/activities/sci/lemonbattery.html

You'll note that any two metals can be used to make a battery. You
also don't have to spend $0 for a "kit". You can go down to your
local dollar store (if such exists in your area) and pick up some
LCD digital watches or car clocks. Just connect wires to the insides
of the watch where the battery goes.

Anthony

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