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..<br><br><div class="gmail_quote">On Mon, Oct 17, 2011 at 3:01 PM, Richard Guy Briggs <span dir="ltr"><<a href="mailto:rgb@tricolour.net">rgb@tricolour.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">On Mon, Oct 17, 2011 at 02:54:38PM -0400, Emily Daniels wrote:<br>
> Hey Labbers-<br>
><br>
> I just published a how-to on the bio-batteries I made over the weekend from<br>
> miniature pumpkins. Check it out and let me know what you think!<br>
><br>
> <a href="http://www.instructables.com/id/Pumpkin-Battery/" target="_blank">http://www.instructables.com/id/Pumpkin-Battery/</a><br>
<br>
</div>Neat.<br>
<br>
I wonder if you could have done away with the electrolyte and simply<br>
used the pumpkin flesh as an electrolyte. I made potato batteries with<br>
my son using copper and zinc strips. They produce about 0.9V each.<br>
<div><div></div><div class="h5"><br>
> Emily<br>
><br>
> On Thu, Sep 1, 2011 at 12:08 PM, Emily Daniels <<a href="mailto:emily.daniels@gmail.com">emily.daniels@gmail.com</a>>wrote:<br>
><br>
> > LOL! Hmmm....<br>
> ><br>
> > @Paul It's not so large, and it's food related- some different types of<br>
> > bio-batteries. If the experiments work it will be hilarious. :)<br>
> ><br>
> > I'll share when I'm done!<br>
> ><br>
> ><br>
> > On Thu, Sep 1, 2011 at 12:06 PM, Andrew Plumb <<a href="mailto:andrew@plumb.org">andrew@plumb.org</a>> wrote:<br>
> ><br>
> >> How are the sight-lines from the roof of Arts Court? I'm wondering if we<br>
> >> can see the parliament buildings' rooftops, in case Em decides to obtain the<br>
> >> sheets of copper from an even cheaper source. ;-)<br>
> >><br>
> >> Andrew.<br>
> >><br>
> >> On 2011-09-01, at 11:57 AM, Sam Roesch wrote:<br>
> >><br>
> >> > Cohen and Cohen does have everything... a great place just to go and<br>
> >> look around, although I find they can be sort of pricy.<br>
> >> ><br>
> >> > On Thu, Sep 1, 2011 at 3:53 PM, Emily Daniels <<a href="mailto:emily.daniels@gmail.com">emily.daniels@gmail.com</a>><br>
> >> wrote:<br>
> >> > I was planning on using heavy duty aluminum foil as the anode and the<br>
> >> copper sheet as the cathode- the copper/zinc mixture of brass would produce<br>
> >> a weaker current. It's about $50 for a 12"x12" sheet of copper from Metal<br>
> >> Supermarkets- would rather find a cheaper solution. Thanks Darsha- will<br>
> >> check out Cohen & Cohen.<br>
> >> ><br>
> >> ><br>
> >> > On Thu, Sep 1, 2011 at 11:51 AM, .ˇ:*¨¨*:ˇ.darsha.ˇ:*¨¨*:ˇ. <<br>
> >> <a href="mailto:darsha.h@gmail.com">darsha.h@gmail.com</a>> wrote:<br>
> >> > Go to Cohen and Coehn - the re-use store:<br>
> >> > <a href="http://www.cohenandcohen.com/reuse/" target="_blank">http://www.cohenandcohen.com/reuse/</a><br>
> >> ><br>
> >> > On Thu, Sep 1, 2011 at 11:42 AM, Sam Roesch <<a href="mailto:samroesch@gmail.com">samroesch@gmail.com</a>><br>
> >> wrote:<br>
> >> > > I'm thinking a copper roofing place might have something- I did a<br>
> >> quick<br>
> >> > > google for "copper roofing ottawa" and got<br>
> >> > > this: <a href="http://www.roofersworld.com/store_copperroofing.htm" target="_blank">http://www.roofersworld.com/store_copperroofing.htm</a><br>
> >> > > Probably expensive though... but if you only need small amounts they<br>
> >> might<br>
> >> > > have an abundance of offcuts that they would give you for scrap value.<br>
> >> > > Sam<br>
> >> > ><br>
> >> > > On Thu, Sep 1, 2011 at 3:17 PM, Emily Daniels <<br>
> >> <a href="mailto:emily.daniels@gmail.com">emily.daniels@gmail.com</a>><br>
> >> > > wrote:<br>
> >> > >><br>
> >> > >> Hello Everyone,<br>
> >> > >> I'm in the process of trying out a Crazy Idea but I need some sheets<br>
> >> of<br>
> >> > >> copper- does anyone have any that I could purchase or know of any<br>
> >> places in<br>
> >> > >> Ottawa where I could buy some? Thickness doesn't matter so much but<br>
> >> it would<br>
> >> > >> be nice to be able to cut the sheets relatively easily. Thanks!<br>
> >> > >> Emily<br>
> >> > >><br>
> >> > >> --<br>
> >> > >> Emily Daniels | <a href="http://emilydaniels.com" target="_blank">emilydaniels.com</a> | @emdaniels |<br>
> >> <a href="http://awesomefoundation.org" target="_blank">awesomefoundation.org</a><br>
> >> > >><br>
> >> > >><br>
> >> > >> _______________________________________________<br>
> >> > >> Lab mailing list<br>
> >> > >> <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
> >> > >> <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
> >> > >><br>
> >> > ><br>
> >> > ><br>
> >> > > _______________________________________________<br>
> >> > > Lab mailing list<br>
> >> > > <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
> >> > > <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
> >> > ><br>
> >> > ><br>
> >> ><br>
> >> ><br>
> >> ><br>
> >> > --<br>
> >> > .ˇ:*¨¨*:ˇ. www.darsha.org.ˇ:*¨¨*:ˇ.<br>
> >> ><br>
> >> ><br>
> >> ><br>
> >> > --<br>
> >> > Emily Daniels | <a href="http://emilydaniels.com" target="_blank">emilydaniels.com</a> | @emdaniels | <a href="http://awesomefoundation.org" target="_blank">awesomefoundation.org</a><br>
> >> ><br>
> >> ><br>
> >> > _______________________________________________<br>
> >> > Lab mailing list<br>
> >> > <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
> >> > <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
> >><br>
> >> --<br>
> >><br>
> >> "The future is already here. It's just not very evenly distributed" --<br>
> >> William Gibson<br>
> >><br>
> >> Me: <a href="http://clothbot.com/wiki/" target="_blank">http://clothbot.com/wiki/</a><br>
> >><br>
> >><br>
> >> _______________________________________________<br>
> >> Lab mailing list<br>
> >> <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
> >> <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
> >><br>
> ><br>
> ><br>
> ><br>
> > --<br>
> > Emily Daniels | <a href="http://emilydaniels.com" target="_blank">emilydaniels.com</a> | @emdaniels | <a href="http://awesomefoundation.org" target="_blank">awesomefoundation.org</a><br>
> ><br>
> ><br>
><br>
><br>
> --<br>
> Emily Daniels | <a href="http://emilydaniels.com" target="_blank">emilydaniels.com</a> | @emdaniels | <a href="http://awesomefoundation.org" target="_blank">awesomefoundation.org</a><br>
<br>
> _______________________________________________<br>
> Lab mailing list<br>
> <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
> <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
<br>
<br>
</div></div> slainte mhath, RGB<br>
<font color="#888888"><br>
--<br>
Richard Guy Briggs -- ~\ -- ~\ <<a href="http://hpv.tricolour.net" target="_blank">hpv.tricolour.net</a>><br>
<<a href="http://www.TriColour.net" target="_blank">www.TriColour.net</a>> -- \___ o \@ @ Ride yer bike!<br>
Ottawa, ON, CANADA -- Lo_>__M__\\/\%__\\/\%<br>
Vote! -- <<a href="http://greenparty.ca" target="_blank">greenparty.ca</a>>_____GTVS6#790__(*)__(*)________(*)(*)_________________<br>
</font></blockquote></div><br><br clear="all"><div><br></div>-- <br>Emily Daniels | <a href="http://emilydaniels.com">emilydaniels.com</a> | @emdaniels | <a href="http://awesomefoundation.org">awesomefoundation.org</a><br>
<br>