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Make balloon float without helium
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Om G  
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 More options Jul 23 2012, 12:06 pm
From: Om G <om.i...@gmail.com>
Date: Mon, 23 Jul 2012 12:06:27 -0400
Local: Mon, Jul 23 2012 12:06 pm
Subject: Make balloon float without helium
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The second method, producing hydrogen, is far more effective and quite dangerous.

Dry ice probably would not work on the scale required.

On Jul 23, 2012, at 10:50 AM, grassrootsmapping@googlegroups.com wrote:


 
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