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BOUNCE killietalk at aka_org: Non-member submission from ["Ely, John" <JEly at lockeliddell_com>]

To: killietalk at aka_org
Subject: BOUNCE killietalk at aka_org: Non-member submission from ["Ely, John" <JEly at lockeliddell_com>]
From: owner-killietalk at aka_org (by way of Barry Cooper <bjc3 at direcpc_com>)
Date: Thu, 10 Feb 2000 14:24:51 -0800

Airstones that produce fine bubbles move more water than those that produce
coarse bubbles, if I'm not mistaken. Lift tubes pump because the mixture of
water and air in them is lighter than "solid" water, causing the mixture to
move up the lift tube. The fine bubbling airstones put more air into a given
volume of water, making it lighter than a column of water mixed with coarser
bubbles. 
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