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Date: Mon, 23 Jul 2012 08:35:49 -0700 (PDT)
From: jessibreen <jessibr...@gmail.com>
To: grassrootsmapping@googlegroups.com
Cc: Mathew Lippincott <mat...@publiclaboratory.org>
Message-Id: <4300f57b-cc9e-4980-b26c-62d836acbf60@googlegroups.com>
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Subject: Re: [grassrootsmapping] : Make balloon float without helium
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Hi Jo,

The dry ice method, where they float a breath-filled balloon in a larger 
balloon full of carbon dioxide gas (the white cloud that billows off of dry 
ice when you add warm water), wouldn't work to inflate a mapping balloon. 
That experiment creates a mini-atmosphere of CO2 in the larger balloon 
which, because it's heavier than the gas we expel when we breathe, make the 
little balloon float.  That's not a condition you could recreate on a 
landscape scale.

Cheers,
Jessi

On Sunday, July 22, 2012 9:07:22 PM UTC-4, Joe wrote:
>
> Dear Mathew and all member of grassrootsmapping,
>
>     I found the way to use dry ice to float balloon by this link  ------>  
> Make-a-Balloon-Float-without-helium/<http://www.instructables.com/id/2-ways-to-Make-a-Balloon-Float-without-helium/>
> , 
>
> would like to ask your opinion,does it work ?
>
> Thank you
> Jo
>
>
>
>   
>
>
>  
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Hi Jo,<br><br>The dry ice method, where they float a breath-filled balloon in a larger balloon full of carbon dioxide gas (the white cloud that billows off of dry ice when you add warm water), wouldn't work to inflate a mapping balloon. That experiment creates a mini-atmosphere of CO2 in the larger balloon which, because it's heavier than the gas we expel when we breathe, make the little balloon float.&nbsp; That's not a condition you could recreate on a landscape scale.<br><br>Cheers,<br>Jessi<br><br>On Sunday, July 22, 2012 9:07:22 PM UTC-4, Joe wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Dear Mathew and all <span>member</span> of <span>grassrootsmapping</span>,<div>

<br></div><div>&nbsp; &nbsp; I found the way to use dry ice to float balloon by this link &nbsp;------&gt; &nbsp;<a href="http://www.instructables.com/id/2-ways-to-Make-a-Balloon-Float-without-helium/" target="_blank">Make-a-Balloon-Float-without-<wbr>helium/</a>,&nbsp;</div>

<div><br></div><div>would like to ask your opinion,does it work ?</div><div><br></div><div>Thank you</div><div>Jo</div><div><br></div><div><br></div><div><br></div><div>&nbsp;&nbsp;<br clear="all"><div><br></div><br>
</div>
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