[Lab] Copper Sheets?

[Paul & Andrea Mumby]

Very cool project, wonder if you could make them generate music somehow...
different pumpkins generate different tones/sounds (variations in voltage
generated or something).

Would be a neat project, and might make a near eerie sounding pumpkin choir
sitting on your step lol...

- Paul


On Mon, Oct 17, 2011 at 3:05 PM, Emily Daniels <emily.daniels at gmail.com>wrote:

> Possibly- I went for a method that I had already tested on another
> experiment, but I don't see why it wouldn't work, unless the pumpkin flesh
> is too sweet and not acidic enough..
>
>
> On Mon, Oct 17, 2011 at 3:01 PM, Richard Guy Briggs <rgb at tricolour.net>wrote:
>
>> On Mon, Oct 17, 2011 at 02:54:38PM -0400, Emily Daniels wrote:
>> > Hey Labbers-
>> >
>> > I just published a how-to on the bio-batteries I made over the weekend
>> from
>> > miniature pumpkins. Check it out and let me know what you think!
>> >
>> > http://www.instructables.com/id/Pumpkin-Battery/
>>
>> Neat.
>>
>> I wonder if you could have done away with the electrolyte and simply
>> used the pumpkin flesh as an electrolyte.  I made potato batteries with
>> my son using copper and zinc strips.  They produce about 0.9V each.
>>
>> > Emily
>> >
>> > On Thu, Sep 1, 2011 at 12:08 PM, Emily Daniels <emily.daniels at gmail.com
>> >wrote:
>> >
>> > > LOL! Hmmm....
>> > >
>> > > @Paul It's not so large, and it's food related- some different types
>> of
>> > > bio-batteries. If the experiments work it will be hilarious. :)
>> > >
>> > > I'll share when I'm done!
>> > >
>> > >
>> > > On Thu, Sep 1, 2011 at 12:06 PM, Andrew Plumb <andrew at plumb.org>
>> wrote:
>> > >
>> > >> How are the sight-lines from the roof of Arts Court?  I'm wondering
>> if we
>> > >> can see the parliament buildings' rooftops, in case Em decides to
>> obtain the
>> > >> sheets of copper from an even cheaper source. ;-)
>> > >>
>> > >> Andrew.
>> > >>
>> > >> On 2011-09-01, at 11:57 AM, Sam Roesch wrote:
>> > >>
>> > >> > Cohen and Cohen does have everything... a great place just to go
>> and
>> > >> look around, although I find they can be sort of pricy.
>> > >> >
>> > >> > On Thu, Sep 1, 2011 at 3:53 PM, Emily Daniels <
>> emily.daniels at gmail.com>
>> > >> wrote:
>> > >> > I was planning on using heavy duty aluminum foil as the anode and
>> the
>> > >> copper sheet as the cathode- the copper/zinc mixture of brass would
>> produce
>> > >> a weaker current. It's about $50 for a 12"x12" sheet of copper from
>> Metal
>> > >> Supermarkets- would rather find a cheaper solution. Thanks Darsha-
>> will
>> > >> check out Cohen & Cohen.
>> > >> >
>> > >> >
>> > >> > On Thu, Sep 1, 2011 at 11:51 AM, .·:*¨¨*:·.darsha.·:*¨¨*:·. <
>> > >> darsha.h at gmail.com> wrote:
>> > >> > Go to Cohen and Coehn - the  re-use store:
>> > >> > http://www.cohenandcohen.com/reuse/
>> > >> >
>> > >> > On Thu, Sep 1, 2011 at 11:42 AM, Sam Roesch <samroesch at gmail.com>
>> > >> wrote:
>> > >> > > I'm thinking a copper roofing place might have something- I did a
>> > >> quick
>> > >> > > google for "copper roofing ottawa" and got
>> > >> > > this: http://www.roofersworld.com/store_copperroofing.htm
>> > >> > > Probably expensive though... but if you only need small amounts
>> they
>> > >> might
>> > >> > > have an abundance of offcuts that they would give you for scrap
>> value.
>> > >> > > Sam
>> > >> > >
>> > >> > > On Thu, Sep 1, 2011 at 3:17 PM, Emily Daniels <
>> > >> emily.daniels at gmail.com>
>> > >> > > wrote:
>> > >> > >>
>> > >> > >> Hello Everyone,
>> > >> > >> I'm in the process of trying out a Crazy Idea but I need some
>> sheets
>> > >> of
>> > >> > >> copper- does anyone have any that I could purchase or know of
>> any
>> > >> places in
>> > >> > >> Ottawa where I could buy some? Thickness doesn't matter so much
>> but
>> > >> it would
>> > >> > >> be nice to be able to cut the sheets relatively easily. Thanks!
>> > >> > >> Emily
>> > >> > >>
>> > >> > >> --
>> > >> > >> Emily Daniels | emilydaniels.com | @emdaniels |
>> > >> awesomefoundation.org
>> > >> > >>
>> > >> > >>
>> > >> > >> _______________________________________________
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>> > >> > >
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>> > >> > >
>> > >> >
>> > >> >
>> > >> >
>> > >> > --
>> > >> > .·:*¨¨*:·. www.darsha.org.·:*¨¨*:·.
>> > >> >
>> > >> >
>> > >> >
>> > >> > --
>> > >> > Emily Daniels | emilydaniels.com | @emdaniels |
>> awesomefoundation.org
>> > >> >
>> > >> >
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>> > > --
>> > > Emily Daniels | emilydaniels.com | @emdaniels | awesomefoundation.org
>> > >
>> > >
>> >
>> >
>> > --
>> > Emily Daniels | emilydaniels.com | @emdaniels | awesomefoundation.org
>>
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>>
>>         slainte mhath, RGB
>>
>> --
>> Richard Guy Briggs               --  ~\    -- ~\            <
>> hpv.tricolour.net>
>> <www.TriColour.net>                --  \___   o \@       @       Ride yer
>> bike!
>> Ottawa, ON, CANADA                  --  Lo_>__M__\\/\%__\\/\%
>> Vote! -- <greenparty.ca
>> >_____GTVS6#790__(*)__(*)________(*)(*)_________________
>>
>
>
>
> --
> Emily Daniels | emilydaniels.com | @emdaniels | awesomefoundation.org
>
>
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